Merge branch 'temp-feature' into development

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "java.configuration.updateBuildConfiguration": "automatic"
+}

app/build.gradle

@@ -6,10 +6,17 @@ android {
     namespace 'com.example.bdkipoc'
     compileSdk 35
     
+    // Tambahkan lint options
+    lint {
+        abortOnError false
+        disable 'GoogleAppIndexingWarning'
+        disable 'NonConstantResourceId'
+    }
+
     defaultConfig {
         applicationId "com.example.bdkipoc"
         minSdk 21
-        targetSdk 30
+        targetSdk 33
         versionCode 1
         versionName "1.0"
 
@@ -22,19 +29,32 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
+    
+    // Keep Java 11 - lebih modern dari referensi
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_11
         targetCompatibility JavaVersion.VERSION_11
     }
+    
+    // Tambahkan sourceSets untuk native libs jika diperlukan
+    sourceSets {
+        main {
+            jniLibs.srcDirs = ['libs']
+        }
+    }
 }
 
 dependencies {
-
+    implementation fileTree(include: ['*.jar', '*.aar'], dir: 'libs')
     implementation libs.appcompat
     implementation libs.material
     implementation libs.activity
     implementation libs.constraintlayout
     implementation libs.cardview
+    implementation 'androidx.recyclerview:recyclerview:1.3.0'
+    implementation 'com.sunmi:printerlibrary:1.0.15'
+    
+    // Test dependencies
     testImplementation libs.junit
     androidTestImplementation libs.ext.junit
     androidTestImplementation libs.espresso.core

app/src/main/AndroidManifest.xml

@@ -8,7 +8,23 @@
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
 
+    <uses-permission android:name="com.sunmi.perm.LED" />
+    <uses-permission android:name="com.sunmi.perm.MSR" />
+    <uses-permission android:name="com.sunmi.perm.ICC" />
+    <uses-permission android:name="com.sunmi.perm.PINPAD" />
+    <uses-permission android:name="com.sunmi.perm.SECURITY" />
+    <uses-permission android:name="com.sunmi.perm.CONTACTLESS_CARD" />
+    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+
+    <uses-permission 
+        android:name="android.permission.QUERY_ALL_PACKAGES"
+        tools:ignore="QueryAllPackagesPermission" />
+
     <application
+        android:name=".MyApplication"
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"
@@ -17,6 +33,7 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.BDKIPOC"
+        android:usesCleartextTraffic="true"
         tools:targetApi="31">
         <activity
             android:name=".MainActivity"
@@ -28,12 +45,45 @@
             </intent-filter>
         </activity>
         <activity
-            android:name=".TransactionActivity"
+            android:name=".cetakulang.ReprintActivity"
             android:exported="false" />
         <activity
-            android:name=".PaymentActivity"
+            android:name=".cetakulang.ReprintAdapterActivity"
             android:exported="false" />
-        <activity android:name=".QrisResultActivity" />
+
+        <activity
+            android:name=".ReceiptActivity"
+            android:exported="false" />
+
+        <activity
+            android:name=".QrisActivity"
+            android:exported="false" />
+
+        <activity 
+            android:name=".QrisResultActivity"            
+            android:exported="false" />
+
+        <activity
+            android:name=".SettlementActivity"
+            android:exported="false" />
+
+        <activity
+            android:name=".HistoryActivity"
+            android:exported="false" />
+            
+        <activity
+            android:name=".HistoryDetailActivity"
+            android:exported="false" />
+
+        <activity
+            android:name=".transaction.CreateTransactionActivity"
+            android:exported="false" />                
+            
+        <activity
+            android:name=".transaction.ResultTransactionActivity"
+            android:exported="false" />
+
+        <activity android:name="com.sunmi.emv.l2.view.AppSelectActivity"/>
     </application>
 
 </manifest>

app/src/main/java/com/example/bdkipoc/CacheHelper.java

@@ -0,0 +1,27 @@
+package com.example.bdkipoc;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+
+public class CacheHelper {
+
+    private static final String PREFERENCE_FILE_NAME = "sm_pay_demo_obj";
+
+    private static final String KEY_LANGUAGE = "key_language";
+
+    public static void saveCurrentLanguage(int language) {
+        SharedPreferences sharedPreferences = MyApplication.app.getSharedPreferences(PREFERENCE_FILE_NAME, Context.MODE_PRIVATE);
+        int value = sharedPreferences.getInt(KEY_LANGUAGE, Constant.LANGUAGE_AUTO);
+        if (value == language) return;
+        SharedPreferences.Editor editor = sharedPreferences.edit();
+        editor.putInt(KEY_LANGUAGE, language);
+        editor.apply();
+    }
+
+    public static int getCurrentLanguage() {
+        SharedPreferences sharedPreferences = MyApplication.app.getSharedPreferences(PREFERENCE_FILE_NAME, Context.MODE_PRIVATE);
+        return sharedPreferences.getInt(KEY_LANGUAGE, Constant.LANGUAGE_AUTO);
+    }
+
+
+}

app/src/main/java/com/example/bdkipoc/Constant.java

@@ -0,0 +1,17 @@
+package com.example.bdkipoc;
+
+public class Constant {
+
+    public static final String TAG = "SDKTestDemo";
+
+    public static final int LANGUAGE_AUTO = 0;
+    public static final int LANGUAGE_ZH_CN = 1;
+    public static final int LANGUAGE_EN_US = 2;
+    public static final int LANGUAGE_JA_JP = 3;
+
+    public static final int SCAN_MODEL_NONE = 100;
+    public static final int SCAN_MODEL_P2Lite = 101;
+
+    public static final String SCAN_MODEL_NONE_VALUE = "NONE";
+    public static final String SCAN_MODEL_P2Lite_VALUE = "P2Lite";
+}

app/src/main/java/com/example/bdkipoc/MainActivity.java

@@ -1,41 +1,450 @@
 package com.example.bdkipoc;
 
+import android.content.Intent;
 import android.os.Bundle;
 import android.view.View;
+import android.widget.LinearLayout;
+import android.widget.TextView;
 import android.widget.Toast;
+import android.view.animation.AccelerateDecelerateInterpolator;
+import android.view.WindowManager;
 
 import androidx.activity.EdgeToEdge;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.cardview.widget.CardView;
+import androidx.constraintlayout.widget.ConstraintLayout;
 import androidx.core.graphics.Insets;
 import androidx.core.view.ViewCompat;
 import androidx.core.view.WindowInsetsCompat;
 
+import com.google.android.material.button.MaterialButton;
+
+import com.example.bdkipoc.cetakulang.ReprintActivity;
+import com.example.bdkipoc.cetakulang.ReprintAdapterActivity;
+
+import com.example.bdkipoc.R;
+import com.example.bdkipoc.transaction.CreateTransactionActivity;
+import com.example.bdkipoc.transaction.ResultTransactionActivity;
+
 public class MainActivity extends AppCompatActivity {
 
+    private boolean isExpanded = false; // False = showing only 9 main menus, True = showing all 15 menus
+    private MaterialButton btnLainnya;
+
+    @Override
+    public void onWindowFocusChanged(boolean hasFocus) {
+        super.onWindowFocusChanged(hasFocus);
+        if (hasFocus) {
+            getWindow().getDecorView().setSystemUiVisibility(
+                View.SYSTEM_UI_FLAG_LAYOUT_STABLE
+                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
+                    | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
+                    | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
+                    | View.SYSTEM_UI_FLAG_FULLSCREEN
+                    | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
+        }
+    }
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
+        // Enable hardware acceleration for smoother scrolling
+        getWindow().setFlags(
+            WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED,
+            WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED
+        );
+        
         super.onCreate(savedInstanceState);
         EdgeToEdge.enable(this);
         setContentView(R.layout.activity_main);
-        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {
+
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(android.R.id.content), (v, insets) -> {
             Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
             v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
             return insets;
         });
 
-        // Set up click listeners for the cards
+        // Initialize views
-        CardView paymentCard = findViewById(R.id.card_payment);
+        btnLainnya = findViewById(R.id.btn_lainnya);
-        CardView transactionsCard = findViewById(R.id.card_transactions);
 
-        paymentCard.setOnClickListener(v -> {
+        // Check if we're returning from a completed transaction
-            // Launch payment activity
+        checkTransactionCompletion();
-            startActivity(new android.content.Intent(MainActivity.this, PaymentActivity.class));
-        });
 
-        transactionsCard.setOnClickListener(v -> {
+        // Setup initial state - 9 main menus visible, 6 dummy menus hidden
-            // Launch transactions activity
+        setupInitialMenuState();
-            startActivity(new android.content.Intent(MainActivity.this, TransactionActivity.class));
+
+        // Setup menu listeners
+        setupMenuListeners();
+    }
+
+    private void setupInitialMenuState() {
+        // 9 main menus should always be visible
+        CardView cardBantuan = findViewById(R.id.card_bantuan);
+        CardView cardInfoToko = findViewById(R.id.card_info_toko);
+        
+        if (cardBantuan != null) {
+            cardBantuan.setVisibility(View.VISIBLE);
+        }
+        if (cardInfoToko != null) {
+            cardInfoToko.setVisibility(View.VISIBLE);
+        }
+
+        // 6 dummy menus should be hidden initially
+        CardView[] dummyCards = {
+            findViewById(R.id.card_bantuan),
+            findViewById(R.id.card_info_toko),
+            findViewById(R.id.card_pengaturan),
+        };
+
+        for (CardView card : dummyCards) {
+            if (card != null) {
+                card.setVisibility(View.GONE);
+            }
+        }
+
+        // Set initial button text
+        isExpanded = false;
+        btnLainnya.setText("Lainnya");
+    }
+
+    private void checkTransactionCompletion() {
+        Intent intent = getIntent();
+        if (intent != null) {
+            boolean transactionCompleted = intent.getBooleanExtra("transaction_completed", false);
+            String transactionAmount = intent.getStringExtra("transaction_amount");
+            
+            if (transactionCompleted) {
+                if (transactionAmount != null) {
+                    Toast.makeText(this, "Transaksi berhasil! Jumlah: Rp " + formatCurrency(transactionAmount), Toast.LENGTH_LONG).show();
+                } else {
+                    Toast.makeText(this, "Transaksi berhasil diselesaikan!", Toast.LENGTH_LONG).show();
+                }
+            }
+        }
+    }
+
+    private String formatCurrency(String amount) {
+        try {
+            long amountValue = Long.parseLong(amount);
+            return String.format("%,d", amountValue).replace(',', '.');
+        } catch (NumberFormatException e) {
+            return amount;
+        }
+    }
+
+    private void setupMenuListeners() {
+        // Card IDs to set up listeners - Total 15 menu items
+        int[] cardIds = {
+            // Row 1 (Always visible - 3 items)
+            R.id.card_kartu_kredit,
+            R.id.card_kartu_debit,
+            R.id.card_qris,
+            // Row 2 (Always visible - 3 items)
+            R.id.card_transfer,
+            R.id.card_uang_elektronik,
+            R.id.card_cetak_ulang,
+            // Row 3 (Always visible - 3 items)
+            R.id.card_refund,
+            R.id.card_settlement,
+            R.id.card_histori,
+            // Row 4 (Hidden initially - 3 items)
+            R.id.card_bantuan,
+            R.id.card_info_toko,            
+            R.id.card_pengaturan,
+        };
+
+        // Set up click listeners for all cards
+        for (int cardId : cardIds) {
+            CardView cardView = findViewById(cardId);
+            if (cardView != null) {
+                cardView.setOnClickListener(v -> {
+                    // ✅ ENHANCED: Navigate with payment type information
+                    if (cardId == R.id.card_kartu_kredit) {
+                        navigateToCreateTransaction("credit_card", cardId, "Kartu Kredit");
+                    } else if (cardId == R.id.card_kartu_debit) {
+                        navigateToCreateTransaction("debit_card", cardId, "Kartu Debit");
+                    } else if (cardId == R.id.card_qris) {
+                        startActivity(new Intent(MainActivity.this, QrisActivity.class));
+                    // Col-2
+                    } else if (cardId == R.id.card_transfer) {
+                        navigateToCreateTransaction("transfer", cardId, "Transfer");
+                    } else if (cardId == R.id.card_uang_elektronik) {
+                        navigateToCreateTransaction("e_money", cardId, "Uang Elektronik");
+                    } else if (cardId == R.id.card_cetak_ulang) {
+                        startActivity(new Intent(MainActivity.this, ReprintActivity.class));
+                    // Col-3
+                    } else if (cardId == R.id.card_refund) {
+                        navigateToCreateTransaction("refund", cardId, "Refund");
+                    } else if (cardId == R.id.card_settlement) {
+                        Toast.makeText(this, "Settlement - Coming Soon", Toast.LENGTH_SHORT).show();
+                    } else if (cardId == R.id.card_histori) {
+                        startActivity(new Intent(MainActivity.this, HistoryActivity.class));
+                    // Col-4
+                    } else if (cardId == R.id.card_bantuan) {
+                        Toast.makeText(this, "Bantuan - Coming Soon", Toast.LENGTH_SHORT).show();
+                    } else if (cardId == R.id.card_info_toko) {
+                        Toast.makeText(this, "Info Toko - Coming Soon", Toast.LENGTH_SHORT).show();
+                    } else if (cardId == R.id.card_pengaturan) {
+                        Toast.makeText(this, "Pengaturan - Coming Soon", Toast.LENGTH_SHORT).show();
+                    } else {
+                        // Fallback for any other cards
+                        navigateToCreateTransaction("credit_card", cardId, "Unknown");
+                    }
                 });
             }
         }
+
+        // Get references to ONLY the dummy cards that need to be toggled
+        CardView[] toggleableCards = {
+            findViewById(R.id.card_bantuan),
+            findViewById(R.id.card_info_toko),
+            findViewById(R.id.card_pengaturan),
+        };
+
+        // Set up "Lainnya" button click listener
+        btnLainnya.setOnClickListener(v -> {
+            isExpanded = !isExpanded;
+            
+            if (isExpanded) {
+                // Show the 6 dummy menus with animation
+                for (CardView card : toggleableCards) {
+                    if (card != null) {
+                        card.setVisibility(View.VISIBLE);
+                        card.setAlpha(0f);
+                        card.animate()
+                            .alpha(1f)
+                            .setDuration(300)
+                            .setInterpolator(new AccelerateDecelerateInterpolator())
+                            .start();
+                    }
+                }
+                btnLainnya.setText("Tampilkan Lebih Sedikit");
+            } else {
+                // Hide the 6 dummy menus with animation
+                for (CardView card : toggleableCards) {
+                    if (card != null) {
+                        card.animate()
+                            .alpha(0f)
+                            .setDuration(300)
+                            .setInterpolator(new AccelerateDecelerateInterpolator())
+                            .withEndAction(() -> card.setVisibility(View.GONE))
+                            .start();
+                    }
+                }
+                btnLainnya.setText("Lainnya");
+            }
+        });
+
+        // Set up scan dan bayar card click listener
+        LinearLayout scanBayarContent = findViewById(R.id.scan_bayar_content);
+        if (scanBayarContent != null) {
+            scanBayarContent.setOnClickListener(v -> {
+                // Navigate to QRIS payment activity
+                startActivity(new Intent(MainActivity.this, QrisActivity.class));
+            });
+        }
+    }
+
+    // ✅ NEW: Enhanced navigation method with payment type information
+    private void navigateToCreateTransaction(String paymentType, int cardMenuId, String cardName) {
+        try {
+            Intent intent = new Intent(MainActivity.this, CreateTransactionActivity.class);
+            
+            // ✅ ENHANCED: Pass comprehensive payment information
+            intent.putExtra("PAYMENT_TYPE", paymentType);
+            intent.putExtra("CARD_MENU_ID", cardMenuId);
+            intent.putExtra("CARD_NAME", cardName);
+            intent.putExtra("CALLING_ACTIVITY", "MainActivity");
+            
+            // ✅ DEBUG: Log navigation details
+            android.util.Log.d("MainActivity", "=== NAVIGATING TO CREATE TRANSACTION ===");
+            android.util.Log.d("MainActivity", "Payment Type: " + paymentType);
+            android.util.Log.d("MainActivity", "Card Menu ID: " + cardMenuId);
+            android.util.Log.d("MainActivity", "Card Name: " + cardName);
+            android.util.Log.d("MainActivity", "========================================");
+            
+            startActivity(intent);
+            
+        } catch (Exception e) {
+            android.util.Log.e("MainActivity", "Error navigating to CreateTransaction: " + e.getMessage(), e);
+            Toast.makeText(this, "Error opening transaction: " + e.getMessage(), Toast.LENGTH_SHORT).show();
+        }
+    }
+
+    // ✅ NEW: Helper method to get payment type from card ID (for backward compatibility)
+    private String getPaymentTypeFromCardId(int cardId) {
+        if (cardId == R.id.card_kartu_kredit) {
+            return "credit_card";
+        } else if (cardId == R.id.card_kartu_debit) {
+            return "debit_card";
+        } else if (cardId == R.id.card_qris) {
+            return "qris";
+        } else if (cardId == R.id.card_transfer) {
+            return "transfer";
+        } else if (cardId == R.id.card_uang_elektronik) {
+            return "e_money";
+        } else if (cardId == R.id.card_refund) {
+            return "refund";
+        } else {
+            android.util.Log.w("MainActivity", "Unknown card ID: " + cardId + ", defaulting to credit_card");
+            return "credit_card";
+        }
+    }
+
+    // ✅ NEW: Helper method to get card name from card ID
+    private String getCardNameFromCardId(int cardId) {
+        if (cardId == R.id.card_kartu_kredit) {
+            return "Kartu Kredit";
+        } else if (cardId == R.id.card_kartu_debit) {
+            return "Kartu Debit";
+        } else if (cardId == R.id.card_qris) {
+            return "QRIS";
+        } else if (cardId == R.id.card_transfer) {
+            return "Transfer";
+        } else if (cardId == R.id.card_uang_elektronik) {
+            return "Uang Elektronik";
+        } else if (cardId == R.id.card_refund) {
+            return "Refund";
+        } else if (cardId == R.id.card_settlement) {
+            return "Settlement";
+        } else if (cardId == R.id.card_histori) {
+            return "Histori";
+        } else if (cardId == R.id.card_cetak_ulang) {
+            return "Cetak Ulang";
+        } else if (cardId == R.id.card_bantuan) {
+            return "Bantuan";
+        } else if (cardId == R.id.card_info_toko) {
+            return "Info Toko";
+        } else if (cardId == R.id.card_pengaturan) {
+            return "Pengaturan";
+        } else {
+            return "Unknown";
+        }
+    }
+
+    // ✅ NEW: Method to validate payment type compatibility
+    private boolean isPaymentTypeSupported(String paymentType) {
+        String[] supportedTypes = {
+            "credit_card", "debit_card", "e_money", "qris", 
+            "transfer", "refund"
+        };
+        
+        for (String supportedType : supportedTypes) {
+            if (supportedType.equals(paymentType)) {
+                return true;
+            }
+        }
+        
+        return false;
+    }
+
+    // ✅ NEW: Method to show payment type selection dialog (for future use)
+    private void showPaymentTypeDialog() {
+        androidx.appcompat.app.AlertDialog.Builder builder = new androidx.appcompat.app.AlertDialog.Builder(this);
+        builder.setTitle("Pilih Jenis Pembayaran");
+        
+        String[] paymentTypes = {
+            "Kartu Kredit", "Kartu Debit", "Uang Elektronik", 
+            "QRIS", "Transfer", "Refund"
+        };
+        String[] paymentTypeCodes = {
+            "credit_card", "debit_card", "e_money", 
+            "qris", "transfer", "refund"
+        };
+        
+        builder.setItems(paymentTypes, (dialog, which) -> {
+            String selectedType = paymentTypeCodes[which];
+            String selectedName = paymentTypes[which];
+            
+            // Use a generic card ID for dialog selection
+            navigateToCreateTransaction(selectedType, -1, selectedName);
+        });
+        
+        builder.setNegativeButton("Batal", null);
+        builder.show();
+    }
+
+    @Override
+    protected void onNewIntent(Intent intent) {
+        super.onNewIntent(intent);
+        setIntent(intent);
+        // Check for transaction completion when returning to MainActivity
+        checkTransactionCompletion();
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        // Clear any transaction completion flags to avoid repeated messages
+        getIntent().removeExtra("transaction_completed");
+        getIntent().removeExtra("transaction_amount");
+        
+        // ✅ NEW: Log resume for debugging
+        android.util.Log.d("MainActivity", "MainActivity resumed");
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        android.util.Log.d("MainActivity", "MainActivity paused");
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        android.util.Log.d("MainActivity", "MainActivity destroyed");
+    }
+
+    // ✅ NEW: Method to handle direct payment type launch (for external calls)
+    public static Intent createTransactionIntent(android.content.Context context, String paymentType, String cardName) {
+        Intent intent = new Intent(context, CreateTransactionActivity.class);
+        intent.putExtra("PAYMENT_TYPE", paymentType);
+        intent.putExtra("CARD_NAME", cardName);
+        intent.putExtra("CALLING_ACTIVITY", "External");
+        return intent;
+    }
+
+    // ✅ NEW: Public method to simulate card click (for testing)
+    public void simulateCardClick(int cardId) {
+        CardView cardView = findViewById(cardId);
+        if (cardView != null) {
+            cardView.performClick();
+        } else {
+            android.util.Log.w("MainActivity", "Card not found for ID: " + cardId);
+        }
+    }
+
+    // ✅ NEW: Method to get all available payment types
+    public String[] getAvailablePaymentTypes() {
+        return new String[]{
+            "credit_card", "debit_card", "e_money", 
+            "qris", "transfer", "refund"
+        };
+    }
+
+    // ✅ NEW: Method to get payment type display names
+    public String[] getPaymentTypeDisplayNames() {
+        return new String[]{
+            "Kartu Kredit", "Kartu Debit", "Uang Elektronik", 
+            "QRIS", "Transfer", "Refund"
+        };
+    }
+
+    // ✅ NEW: Debug method to log all card IDs and their payment types
+    private void debugCardMappings() {
+        android.util.Log.d("MainActivity", "=== CARD PAYMENT TYPE MAPPINGS ===");
+        
+        int[] cardIds = {
+            R.id.card_kartu_kredit, R.id.card_kartu_debit, R.id.card_qris,
+            R.id.card_transfer, R.id.card_uang_elektronik, R.id.card_refund
+        };
+        
+        for (int cardId : cardIds) {
+            String paymentType = getPaymentTypeFromCardId(cardId);
+            String cardName = getCardNameFromCardId(cardId);
+            android.util.Log.d("MainActivity", 
+                "Card ID: " + cardId + " -> Payment Type: " + paymentType + " -> Name: " + cardName);
+        }
+        
+        android.util.Log.d("MainActivity", "==================================");
+    }
+}

app/src/main/java/com/example/bdkipoc/MyApplication.java

@@ -0,0 +1,197 @@
+package com.example.bdkipoc;
+
+import android.app.Application;
+import android.app.Service;
+import android.content.ComponentName;
+import android.content.Intent;
+import android.content.ServiceConnection;
+import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.os.IBinder;
+import android.util.DisplayMetrics;
+
+import com.example.bdkipoc.emv.EmvTTS;
+import com.example.bdkipoc.utils.LogUtil;
+import com.example.bdkipoc.utils.Utility;
+import com.sunmi.pay.hardware.aidlv2.emv.EMVOptV2;
+import com.sunmi.pay.hardware.aidlv2.etc.ETCOptV2;
+import com.sunmi.pay.hardware.aidlv2.pinpad.PinPadOptV2;
+import com.sunmi.pay.hardware.aidlv2.print.PrinterOptV2;
+import com.sunmi.pay.hardware.aidlv2.readcard.ReadCardOptV2;
+import com.sunmi.pay.hardware.aidlv2.rfid.RFIDOptV2;
+import com.sunmi.pay.hardware.aidlv2.security.BiometricManagerV2;
+import com.sunmi.pay.hardware.aidlv2.security.DevCertManagerV2;
+import com.sunmi.pay.hardware.aidlv2.security.NoLostKeyManagerV2;
+import com.sunmi.pay.hardware.aidlv2.security.SecurityOptV2;
+import com.sunmi.pay.hardware.aidlv2.system.BasicOptV2;
+import com.sunmi.pay.hardware.aidlv2.tax.TaxOptV2;
+import com.sunmi.pay.hardware.aidlv2.test.TestOptV2;
+import com.sunmi.pay.hardware.wrapper.HCEManagerV2Wrapper;
+import com.sunmi.peripheral.printer.InnerPrinterCallback;
+import com.sunmi.peripheral.printer.InnerPrinterException;
+import com.sunmi.peripheral.printer.InnerPrinterManager;
+import com.sunmi.peripheral.printer.SunmiPrinterService;
+
+import java.util.Locale;
+
+import sunmi.paylib.SunmiPayKernel;
+
+public class MyApplication extends Application {
+    public static MyApplication app;
+
+    public BasicOptV2 basicOptV2;                   // 获取基础操作模块
+    public ReadCardOptV2 readCardOptV2;             // 获取读卡模块
+    public PinPadOptV2 pinPadOptV2;                 // 获取PinPad操作模块
+    public SecurityOptV2 securityOptV2;             // 获取安全操作模块
+    public EMVOptV2 emvOptV2;                       // 获取EMV操作模块
+    public TaxOptV2 taxOptV2;                       // 获取税控操作模块
+    public ETCOptV2 etcOptV2;                       // 获取ETC操作模块
+    public PrinterOptV2 printerOptV2;               // 获取打印操作模块
+    public TestOptV2 testOptV2;                     // 获取测试操作模块
+    public DevCertManagerV2 devCertManagerV2;       // 设备证书操作模块
+    public NoLostKeyManagerV2 noLostKeyManagerV2;   // NoLostKey操作模块
+    public HCEManagerV2Wrapper hceV2Wrapper;        // HCE操作模块
+    public RFIDOptV2 rfidOptV2;                     // RFID操作模块
+    public SunmiPrinterService sunmiPrinterService; // 打印模块
+    //public IScanInterface scanInterface;            // 扫码模块 (commented out)
+    public BiometricManagerV2 mBiometricManagerV2;  // 生物特征模块
+
+    private boolean connectPaySDK;//是否已连接PaySDK
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        app = this;
+        initLocaleLanguage();
+        initEmvTTS();
+        bindPrintService();
+        bindPaySDKService();
+        //bindScannerService(); // Commented out scanner service binding
+    }
+
+    public static void initLocaleLanguage() {
+        Resources resources = app.getResources();
+        DisplayMetrics dm = resources.getDisplayMetrics();
+        Configuration config = resources.getConfiguration();
+        int showLanguage = CacheHelper.getCurrentLanguage();
+        if (showLanguage == Constant.LANGUAGE_AUTO) {
+            LogUtil.e(Constant.TAG, config.locale.getCountry() + "---这是系统语言");
+            config.locale = Resources.getSystem().getConfiguration().locale;
+        } else if (showLanguage == Constant.LANGUAGE_ZH_CN) {
+            LogUtil.e(Constant.TAG, "这是中文");
+            config.locale = Locale.SIMPLIFIED_CHINESE;
+        } else if (showLanguage == Constant.LANGUAGE_EN_US) {
+            LogUtil.e(Constant.TAG, "这是英文");
+            config.locale = Locale.ENGLISH;
+        } else if (showLanguage == Constant.LANGUAGE_JA_JP) {
+            LogUtil.e(Constant.TAG, "这是日文");
+            config.locale = Locale.JAPAN;
+        }
+        resources.updateConfiguration(config, dm);
+    }
+
+    @Override
+    public void onConfigurationChanged(Configuration newConfig) {
+        super.onConfigurationChanged(newConfig);
+        LogUtil.e(Constant.TAG, "onConfigurationChanged");
+    }
+
+    public boolean isConnectPaySDK() {
+        return connectPaySDK;
+    }
+
+    /**
+     * bind PaySDK service
+     */
+    public void bindPaySDKService() {
+        final SunmiPayKernel payKernel = SunmiPayKernel.getInstance();
+        payKernel.setEmvL2Split(true);
+        payKernel.initPaySDK(this, new SunmiPayKernel.ConnectCallback() {
+            @Override
+            public void onConnectPaySDK() {
+                LogUtil.e(Constant.TAG, "onConnectPaySDK...");
+                emvOptV2 = payKernel.mEMVOptV2;
+                basicOptV2 = payKernel.mBasicOptV2;
+                pinPadOptV2 = payKernel.mPinPadOptV2;
+                readCardOptV2 = payKernel.mReadCardOptV2;
+                securityOptV2 = payKernel.mSecurityOptV2;
+                taxOptV2 = payKernel.mTaxOptV2;
+                etcOptV2 = payKernel.mETCOptV2;
+                printerOptV2 = payKernel.mPrinterOptV2;
+                testOptV2 = payKernel.mTestOptV2;
+                devCertManagerV2 = payKernel.mDevCertManagerV2;
+                noLostKeyManagerV2 = payKernel.mNoLostKeyManagerV2;
+                mBiometricManagerV2 = payKernel.mBiometricManagerV2;
+                hceV2Wrapper = payKernel.mHCEManagerV2Wrapper;
+                rfidOptV2 = payKernel.mRFIDOptV2;
+                connectPaySDK = true;
+            }
+
+            @Override
+            public void onDisconnectPaySDK() {
+                LogUtil.e(Constant.TAG, "onDisconnectPaySDK...");
+                connectPaySDK = false;
+                emvOptV2 = null;
+                basicOptV2 = null;
+                pinPadOptV2 = null;
+                readCardOptV2 = null;
+                securityOptV2 = null;
+                taxOptV2 = null;
+                etcOptV2 = null;
+                printerOptV2 = null;
+                devCertManagerV2 = null;
+                noLostKeyManagerV2 = null;
+                mBiometricManagerV2 = null;
+                rfidOptV2 = null;
+                Utility.showToast(R.string.connect_fail);
+            }
+        });
+    }
+
+    /**
+     * bind printer service
+     */
+    private void bindPrintService() {
+        try {
+            InnerPrinterManager.getInstance().bindService(this, new InnerPrinterCallback() {
+                @Override
+                protected void onConnected(SunmiPrinterService service) {
+                    sunmiPrinterService = service;
+                }
+
+                @Override
+                protected void onDisconnected() {
+                    sunmiPrinterService = null;
+                }
+            });
+        } catch (InnerPrinterException e) {
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * bind scanner service (commented out)
+     */
+    /*
+    public void bindScannerService() {
+        Intent intent = new Intent();
+        intent.setPackage("com.sunmi.scanner");
+        intent.setAction("com.sunmi.scanner.IScanInterface");
+        bindService(intent, new ServiceConnection() {
+            @Override
+            public void onServiceConnected(ComponentName name, IBinder service) {
+                scanInterface = IScanInterface.Stub.asInterface(service);
+            }
+
+            @Override
+            public void onServiceDisconnected(ComponentName name) {
+                scanInterface = null;
+            }
+        }, Service.BIND_AUTO_CREATE);
+    }
+    */
+
+    private void initEmvTTS() {
+        EmvTTS.getInstance().init();
+    }
+}

app/src/main/java/com/example/bdkipoc/PaymentActivity.java

@@ -1,557 +0,0 @@
-package com.example.bdkipoc;
-
-import android.content.Context;
-import android.content.Intent;
-import android.graphics.Bitmap;
-import android.os.AsyncTask;
-import android.os.Bundle;
-import android.util.Log;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.inputmethod.InputMethodManager;
-import android.widget.Button;
-import android.widget.EditText;
-import android.widget.ImageView;
-import android.widget.ProgressBar;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import androidx.annotation.Nullable;
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.appcompat.widget.Toolbar;
-
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.OutputStream;
-import java.net.HttpURLConnection;
-import java.net.URI;
-import java.net.URISyntaxException;
-import java.net.URL;
-import java.util.Random;
-import java.util.UUID;
-
-public class PaymentActivity extends AppCompatActivity {
-
-    private ProgressBar progressBar;
-    private Button initiatePaymentButton;
-    private Button simulatePaymentButton;
-    private ImageView qrCodeImageView;
-    private TextView statusTextView;
-    private EditText editTextAmount;
-    private TextView referenceIdTextView;
-    private View paymentDetailsLayout;
-    private View paymentSuccessLayout;
-    private Button returnToMainButton;
-
-    private String transactionId;
-    private String transactionUuid;
-    private String referenceId;
-    private int amount;
-    private JSONObject midtransResponse;
-
-    private static final String BACKEND_BASE = "https://be-edc.msvc.app";
-    private static final String MIDTRANS_CHARGE_URL = "https://api.sandbox.midtrans.com/v2/charge";
-    private static final String MIDTRANS_AUTH = "Basic U0ItTWlkLXNlcnZlci1JM2RJWXdIRzVuamVMeHJCMVZ5endWMUM="; // Replace with your actual key
-    private static final String WEBHOOK_URL = "https://be-edc.msvc.app/webhooks/midtrans";
-
-    @Override
-    protected void onCreate(@Nullable Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_payment);
-
-        // Set up the toolbar
-        Toolbar toolbar = findViewById(R.id.toolbar);
-        setSupportActionBar(toolbar);
-        if (getSupportActionBar() != null) {
-            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
-            getSupportActionBar().setDisplayShowHomeEnabled(true);
-            getSupportActionBar().setTitle("QRIS Payment");
-        }
-
-        // Initialize views
-        progressBar = findViewById(R.id.progressBar);
-        initiatePaymentButton = findViewById(R.id.initiatePaymentButton);
-        simulatePaymentButton = findViewById(R.id.simulatePaymentButton);
-        qrCodeImageView = findViewById(R.id.qrCodeImageView);
-        statusTextView = findViewById(R.id.statusTextView);
-        editTextAmount = findViewById(R.id.editTextAmount);
-        referenceIdTextView = findViewById(R.id.referenceIdTextView);
-        paymentDetailsLayout = findViewById(R.id.paymentDetailsLayout);
-        paymentSuccessLayout = findViewById(R.id.paymentSuccessLayout);
-        returnToMainButton = findViewById(R.id.returnToMainButton);
-
-        // Generate a random amount between 100,000 and 999,999
-        amount = new Random().nextInt(900000) + 100000;
-        
-        // Format and display the amount
-        editTextAmount.setText("");
-        editTextAmount.requestFocus();
-        InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
-        if (imm != null) {
-            imm.showSoftInput(editTextAmount, InputMethodManager.SHOW_IMPLICIT);
-        }
-        
-        // Generate reference ID
-        referenceId = "ref-" + generateRandomString(8);
-        referenceIdTextView.setText(referenceId);
-
-        // Set up click listeners
-        initiatePaymentButton.setOnClickListener(v -> createTransaction());
-        simulatePaymentButton.setOnClickListener(v -> simulateWebhook());
-        returnToMainButton.setOnClickListener(v -> finish());
-
-        // Initially hide the QR code and payment success views
-        paymentDetailsLayout.setVisibility(View.GONE);
-        paymentSuccessLayout.setVisibility(View.GONE);
-        simulatePaymentButton.setVisibility(View.GONE);
-    }
-
-    private void createTransaction() {
-        progressBar.setVisibility(View.VISIBLE);
-        initiatePaymentButton.setEnabled(false);
-        statusTextView.setText("Creating transaction...");
-        
-        new CreateTransactionTask().execute();
-    }
-
-    private void displayQrCode(String qrImageUrl) {
-        new DownloadImageTask().execute(qrImageUrl);
-    }
-
-    private void simulateWebhook() {
-        progressBar.setVisibility(View.VISIBLE);
-        simulatePaymentButton.setEnabled(false);
-        statusTextView.setText("Processing payment...");
-        
-        new SimulateWebhookTask().execute();
-    }
-
-    private void showSuccessScreen() {
-        paymentDetailsLayout.setVisibility(View.GONE);
-        paymentSuccessLayout.setVisibility(View.VISIBLE);
-        statusTextView.setText("Payment successful!");
-        progressBar.setVisibility(View.GONE);
-    }
-
-    private String generateRandomString(int length) {
-        String chars = "abcdefghijklmnopqrstuvwxyz0123456789";
-        StringBuilder sb = new StringBuilder();
-        Random random = new Random();
-        for (int i = 0; i < length; i++) {
-            int index = random.nextInt(chars.length());
-            sb.append(chars.charAt(index));
-        }
-        return sb.toString();
-    }
-
-    private String getServerKey() {
-        // MIDTRANS_AUTH = 'Basic base64string'
-        String base64 = MIDTRANS_AUTH.replace("Basic ", "");
-        String decoded = android.util.Base64.decode(base64, android.util.Base64.DEFAULT).toString();
-        // Format is usually 'SB-Mid-server-xxxx:'. Remove trailing colon if present.
-        return decoded.replace(":\n", "");
-    }
-
-    private String generateSignature(String orderId, String statusCode, String grossAmount, String serverKey) {
-        String input = orderId + statusCode + grossAmount + serverKey;
-        try {
-            java.security.MessageDigest md = java.security.MessageDigest.getInstance("SHA-512");
-            byte[] messageDigest = md.digest(input.getBytes());
-            StringBuilder hexString = new StringBuilder();
-            for (byte b : messageDigest) {
-                String hex = Integer.toHexString(0xff & b);
-                if (hex.length() == 1) hexString.append('0');
-                hexString.append(hex);
-            }
-            return hexString.toString();
-        } catch (java.security.NoSuchAlgorithmException e) {
-            return "";
-        }
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        if (item.getItemId() == android.R.id.home) {
-            finish();
-            return true;
-        }
-        return super.onOptionsItemSelected(item);
-    }
-    
-    private class CreateTransactionTask extends AsyncTask<Void, Void, Boolean> {
-        private String errorMessage;
-        
-        @Override
-        protected Boolean doInBackground(Void... voids) {
-            try {
-                // Generate a UUID for the transaction
-                transactionUuid = UUID.randomUUID().toString();
-                
-                // Create transaction JSON payload
-                JSONObject payload = new JSONObject();
-                payload.put("type", "PAYMENT");
-                payload.put("channel_category", "RETAIL_OUTLET");
-                payload.put("channel_code", "QRIS");
-                payload.put("reference_id", referenceId);
-                
-                // Read amount from EditText and log it
-                String amountText = editTextAmount.getText().toString().trim();
-                Log.d("MidtransCharge", "Raw amount text: " + amountText);
-                
-                try {
-                    // Parse amount - expecting integer in lowest denomination (Indonesian Rupiah)
-                    amount = Integer.parseInt(amountText);
-                    Log.d("MidtransCharge", "Parsed amount: " + amount);
-                } catch (NumberFormatException e) {
-                    Log.e("MidtransCharge", "Amount parsing error: " + e.getMessage());
-                    errorMessage = "Invalid amount format";
-                    return false;
-                }
-                
-                payload.put("amount", amount);
-                payload.put("cashflow", "MONEY_IN");
-                payload.put("status", "INIT");
-                payload.put("device_id", 1);
-                payload.put("transaction_uuid", transactionUuid);
-                payload.put("transaction_time_seconds", 0.0);
-                payload.put("device_code", "PB4K252T00021");
-                payload.put("merchant_name", "Marcel Panjaitan");
-                payload.put("mid", "71000026521");
-                payload.put("tid", "73001500");
-                
-                // Make the API call
-                URL url = new URI(BACKEND_BASE + "/transactions").toURL();
-                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
-                conn.setRequestMethod("POST");
-                conn.setRequestProperty("Content-Type", "application/json");
-                conn.setRequestProperty("Accept", "application/json");
-                conn.setDoOutput(true);
-                
-                try (OutputStream os = conn.getOutputStream()) {
-                    byte[] input = payload.toString().getBytes("utf-8");
-                    os.write(input, 0, input.length);
-                }
-                
-                int responseCode = conn.getResponseCode();
-                if (responseCode == 200 || responseCode == 201) {
-                    // Read the response
-                    BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));
-                    StringBuilder response = new StringBuilder();
-                    String responseLine;
-                    while ((responseLine = br.readLine()) != null) {
-                        response.append(responseLine.trim());
-                    }
-                    
-                    // Parse the response to get transaction ID
-                    JSONObject jsonResponse = new JSONObject(response.toString());
-                    JSONObject data = jsonResponse.getJSONObject("data");
-                    transactionId = String.valueOf(data.getInt("id"));
-                    
-                    // Now generate QRIS via Midtrans
-                    return generateQris(amount);
-                } else {
-                    // Read error response
-                    BufferedReader br = new BufferedReader(new InputStreamReader(conn.getErrorStream(), "utf-8"));
-                    StringBuilder response = new StringBuilder();
-                    String responseLine;
-                    while ((responseLine = br.readLine()) != null) {
-                        response.append(responseLine.trim());
-                    }
-                    errorMessage = "Error creating transaction: " + response.toString();
-                    return false;
-                }
-            } catch (Exception e) {
-                Log.e("MidtransCharge", "Exception: " + e.getMessage(), e);
-                errorMessage = "Unexpected error: " + e.getMessage();
-                return false;
-            }
-        }
-        
-        private boolean generateQris(int amount) {
-            try {
-                // Create QRIS charge JSON payload
-                JSONObject payload = new JSONObject();
-                payload.put("payment_type", "qris");
-                
-                JSONObject transactionDetails = new JSONObject();
-                transactionDetails.put("order_id", transactionUuid);
-                transactionDetails.put("gross_amount", amount);
-                payload.put("transaction_details", transactionDetails);
-                
-                // Log the request details
-                Log.d("MidtransCharge", "URL: " + MIDTRANS_CHARGE_URL);
-                Log.d("MidtransCharge", "Authorization: " + MIDTRANS_AUTH);
-                Log.d("MidtransCharge", "Accept: application/json");
-                Log.d("MidtransCharge", "Content-Type: application/json");
-                Log.d("MidtransCharge", "X-Override-Notification: " + WEBHOOK_URL);
-                Log.d("MidtransCharge", "Payload: " + payload.toString());
-
-                // Make the API call to Midtrans
-                URL url = new URI(MIDTRANS_CHARGE_URL).toURL();
-                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
-                conn.setRequestMethod("POST");
-                conn.setRequestProperty("Accept", "application/json");
-                conn.setRequestProperty("Content-Type", "application/json");
-                conn.setRequestProperty("Authorization", MIDTRANS_AUTH); 
-                conn.setRequestProperty("X-Override-Notification", WEBHOOK_URL);
-                conn.setDoOutput(true);
-                
-                try (OutputStream os = conn.getOutputStream()) {
-                    byte[] input = payload.toString().getBytes("utf-8");
-                    os.write(input, 0, input.length);
-                }
-                
-                int responseCode = conn.getResponseCode();
-                if (responseCode == 200 || responseCode == 201) {
-                    InputStream inputStream = conn.getInputStream();
-                    if (inputStream != null) {
-                        BufferedReader br = new BufferedReader(new InputStreamReader(inputStream, "utf-8"));
-                        StringBuilder response = new StringBuilder();
-                        String responseLine;
-                        while ((responseLine = br.readLine()) != null) {
-                            response.append(responseLine.trim());
-                        }
-                        
-                        // Parse the response
-                        midtransResponse = new JSONObject(response.toString());
-                        return true;
-                    } else {
-                        Log.e("MidtransCharge", "HTTP " + responseCode + ": No input stream available");
-                        errorMessage = "Error generating QRIS: HTTP " + responseCode + ": No input stream available";
-                        return false;
-                    }
-                } else {
-                    InputStream errorStream = conn.getErrorStream();
-                    if (errorStream != null) {
-                        BufferedReader br = new BufferedReader(new InputStreamReader(errorStream, "utf-8"));
-                        StringBuilder errorResponse = new StringBuilder();
-                        String responseLine;
-                        while ((responseLine = br.readLine()) != null) {
-                            errorResponse.append(responseLine.trim());
-                        }
-                        Log.e("MidtransCharge", "HTTP " + responseCode + ": " + errorResponse.toString());
-                        errorMessage = "Error generating QRIS: HTTP " + responseCode + ": " + errorResponse.toString();
-                    } else {
-                        Log.e("MidtransCharge", "HTTP " + responseCode + ": No error stream available");
-                        errorMessage = "Error generating QRIS: HTTP " + responseCode + ": No error stream available";
-                    }
-                    return false;
-                }
-            } catch (Exception e) {
-                Log.e("MidtransCharge", "Exception: " + e.getMessage(), e);
-                errorMessage = "Unexpected error: " + e.getMessage();
-                return false;
-            }
-        }
-        
-        @Override
-        protected void onPostExecute(Boolean success) {
-            if (success && midtransResponse != null) {
-                try {
-                    // Extract needed values from midtransResponse
-                    JSONObject actions = midtransResponse.getJSONArray("actions").getJSONObject(0);
-                    String qrImageUrl = actions.getString("url");
-                    
-                    // Extract transaction_id
-                    String transactionId = midtransResponse.getString("transaction_id");
-                    String transactionTime = midtransResponse.getString("transaction_time");
-                    String acquirer = midtransResponse.getString("acquirer");
-                    String merchantId = midtransResponse.getString("merchant_id");
-                    String exactGrossAmount = midtransResponse.getString("gross_amount");
-                    
-                    // Log everything before launching activity
-                    Log.d("MidtransCharge", "Creating QrisResultActivity intent with:");
-                    Log.d("MidtransCharge", "qrImageUrl: " + qrImageUrl);
-                    Log.d("MidtransCharge", "amount: " + amount);
-                    Log.d("MidtransCharge", "referenceId: " + referenceId);
-                    Log.d("MidtransCharge", "transactionUuid (orderId): " + transactionUuid);
-                    Log.d("MidtransCharge", "transaction_id: " + transactionId);
-                    Log.d("MidtransCharge", "exactGrossAmount: " + exactGrossAmount);
-                    
-                    // Instead of showing QR inline, launch QrisResultActivity
-                    Intent intent = new Intent(PaymentActivity.this, QrisResultActivity.class);
-                    intent.putExtra("qrImageUrl", qrImageUrl);
-                    intent.putExtra("amount", amount);
-                    intent.putExtra("referenceId", referenceId);
-                    intent.putExtra("orderId", transactionUuid); // Order ID
-                    intent.putExtra("transactionId", transactionId); // Actual Midtrans transaction_id
-                    intent.putExtra("grossAmount", exactGrossAmount); // Exact gross amount from response
-                    intent.putExtra("transactionTime", transactionTime); // For timestamp
-                    intent.putExtra("acquirer", acquirer);
-                    intent.putExtra("merchantId", merchantId);
-                    
-                    try {
-                        startActivity(intent);
-                    } catch (Exception e) {
-                        Log.e("MidtransCharge", "Failed to start QrisResultActivity: " + e.getMessage(), e);
-                        Toast.makeText(PaymentActivity.this, "Error launching QR display: " + e.getMessage(), Toast.LENGTH_LONG).show();
-                    }
-                    return;
-                } catch (JSONException e) {
-                    Log.e("MidtransCharge", "QRIS response JSON error: " + e.getMessage(), e);
-                    Toast.makeText(PaymentActivity.this, "Error processing QRIS response", Toast.LENGTH_LONG).show();
-                }
-            } else {
-                String message = (errorMessage != null && !errorMessage.isEmpty()) ? errorMessage : "Unknown error occurred. Please check Logcat for details.";
-                Toast.makeText(PaymentActivity.this, message, Toast.LENGTH_LONG).show();
-                initiatePaymentButton.setEnabled(true);
-            }
-            progressBar.setVisibility(View.GONE);
-        }
-    }
-    
-    private class DownloadImageTask extends AsyncTask<String, Void, Bitmap> {
-        @Override
-        protected Bitmap doInBackground(String... urls) {
-            String urlDisplay = urls[0];
-            Bitmap bitmap = null;
-            try {
-                URL url = new URI(urlDisplay).toURL();
-                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
-                connection.setDoInput(true);
-                connection.connect();
-                java.io.InputStream input = connection.getInputStream();
-                bitmap = android.graphics.BitmapFactory.decodeStream(input);
-            } catch (Exception e) {
-                e.printStackTrace();
-            }
-            return bitmap;
-        }
-
-        @Override
-        protected void onPostExecute(Bitmap result) {
-            if (result != null) {
-                qrCodeImageView.setImageBitmap(result);
-            } else {
-                Toast.makeText(PaymentActivity.this, "Error loading QR code image", Toast.LENGTH_LONG).show();
-            }
-        }
-    }
-    
-    private class SimulateWebhookTask extends AsyncTask<Void, Void, Boolean> {
-        private String errorMessage;
-        
-        @Override
-        protected Boolean doInBackground(Void... voids) {
-            try {
-                // Wait a moment to simulate real-world timing
-                Thread.sleep(1500);
-                
-                // Get server key and prepare signature
-                String serverKey = getServerKey();
-                String grossAmount = String.valueOf(amount) + ".00";
-                String signatureKey = generateSignature(
-                    transactionUuid,
-                    "200",
-                    grossAmount,
-                    serverKey
-                );
-                
-                // Create webhook payload
-                JSONObject payload = new JSONObject();
-                payload.put("transaction_type", "on-us");
-                payload.put("transaction_time", midtransResponse.getString("transaction_time"));
-                payload.put("transaction_status", "settlement");
-                payload.put("transaction_id", midtransResponse.getString("transaction_id"));
-                payload.put("status_message", "midtrans payment notification");
-                payload.put("status_code", "200");
-                payload.put("signature_key", signatureKey);
-                payload.put("settlement_time", midtransResponse.getString("transaction_time"));
-                payload.put("payment_type", "qris");
-                payload.put("order_id", transactionUuid);
-                payload.put("merchant_id", midtransResponse.getString("merchant_id"));
-                payload.put("issuer", midtransResponse.getString("acquirer"));
-                payload.put("gross_amount", grossAmount);
-                payload.put("fraud_status", "accept");
-                payload.put("currency", "IDR");
-                payload.put("acquirer", midtransResponse.getString("acquirer"));
-                payload.put("shopeepay_reference_number", "");
-                payload.put("reference_id", referenceId);
-                
-                // Call the webhook URL
-                URL url = new URI(WEBHOOK_URL).toURL();
-                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
-                conn.setRequestMethod("POST");
-                conn.setRequestProperty("Content-Type", "application/json");
-                conn.setRequestProperty("Accept", "application/json");
-                conn.setDoOutput(true);
-                
-                try (OutputStream os = conn.getOutputStream()) {
-                    byte[] input = payload.toString().getBytes("utf-8");
-                    os.write(input, 0, input.length);
-                }
-                
-                int responseCode = conn.getResponseCode();
-                if (responseCode == 200 || responseCode == 201) {
-                    // Wait briefly to allow the backend to process
-                    Thread.sleep(2000);
-                    return checkTransactionStatus();
-                } else {
-                    // Read error response
-                    BufferedReader br = new BufferedReader(new InputStreamReader(conn.getErrorStream(), "utf-8"));
-                    StringBuilder response = new StringBuilder();
-                    String responseLine;
-                    while ((responseLine = br.readLine()) != null) {
-                        response.append(responseLine.trim());
-                    }
-                    errorMessage = "Error simulating payment: " + response.toString();
-                    return false;
-                }
-            } catch (Exception e) {
-                errorMessage = "Error: " + e.getMessage();
-                return false;
-            }
-        }
-        
-        private boolean checkTransactionStatus() {
-            try {
-                // Check transaction status
-                URL url = new URI(BACKEND_BASE + "/transactions/" + transactionId).toURL();
-                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
-                conn.setRequestMethod("GET");
-                conn.setRequestProperty("Accept", "application/json");
-                
-                int responseCode = conn.getResponseCode();
-                if (responseCode == 200) {
-                    // Read the response
-                    BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));
-                    StringBuilder response = new StringBuilder();
-                    String responseLine;
-                    while ((responseLine = br.readLine()) != null) {
-                        response.append(responseLine.trim());
-                    }
-                    
-                    // Parse the response
-                    JSONObject jsonResponse = new JSONObject(response.toString());
-                    JSONObject data = jsonResponse.getJSONObject("data");
-                    String status = data.getString("status");
-                    
-                    return status.equalsIgnoreCase("SUCCESS");
-                } else {
-                    errorMessage = "Error checking transaction status. HTTP response code: " + responseCode;
-                    return false;
-                }
-            } catch (Exception e) {
-                errorMessage = "Error checking transaction status: " + e.getMessage();
-                return false;
-            }
-        }
-        
-        @Override
-        protected void onPostExecute(Boolean success) {
-            if (success) {
-                showSuccessScreen();
-            } else {
-                String message = (errorMessage != null && !errorMessage.isEmpty()) ? errorMessage : "Unknown error occurred. Please check Logcat for details.";
-                Toast.makeText(PaymentActivity.this, message, Toast.LENGTH_LONG).show();
-                simulatePaymentButton.setEnabled(true);
-            }
-            progressBar.setVisibility(View.GONE);
-        }
-    }
-}

app/src/main/java/com/example/bdkipoc/QrisResultActivity.java

@@ -1,287 +0,0 @@
-package com.example.bdkipoc;
-
-import android.content.Intent;
-import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
-import android.os.AsyncTask;
-import android.os.Bundle;
-import android.os.Handler;
-import android.os.Looper;
-import android.util.Log;
-import android.view.View;
-import android.widget.Button;
-import android.widget.ImageView;
-import android.widget.ProgressBar;
-import android.widget.TextView;
-
-import androidx.annotation.Nullable;
-import androidx.appcompat.app.AppCompatActivity;
-
-import org.json.JSONArray;
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import java.io.BufferedReader;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.OutputStream;
-import java.net.HttpURLConnection;
-import java.net.URI;
-import java.net.URL;
-
-public class QrisResultActivity extends AppCompatActivity {
-    private ImageView qrImageView;
-    private TextView amountTextView;
-    private TextView referenceTextView;
-    private Button downloadQrisButton;
-    private Button checkStatusButton;
-    private TextView statusTextView;
-    private Button returnMainButton;
-    private ProgressBar progressBar;
-    private String orderId;
-    private String grossAmount;
-    private String referenceId;
-    private String transactionId;
-    private String transactionTime;
-    private String acquirer;
-    private String merchantId;
-    private String backendBase = "https://be-edc.msvc.app";
-    private String webhookUrl = "https://be-edc.msvc.app/webhooks/midtrans";
-
-    @Override
-    protected void onCreate(@Nullable Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_qris_result);
-
-        qrImageView = findViewById(R.id.qrImageView);
-        amountTextView = findViewById(R.id.amountTextView);
-        referenceTextView = findViewById(R.id.referenceTextView);
-        downloadQrisButton = findViewById(R.id.downloadQrisButton);
-        checkStatusButton = findViewById(R.id.checkStatusButton);
-        statusTextView = findViewById(R.id.statusTextView);
-        returnMainButton = findViewById(R.id.returnMainButton);
-        progressBar = findViewById(R.id.progressBar);
-
-        Intent intent = getIntent();
-        String qrImageUrl = intent.getStringExtra("qrImageUrl");
-        int amount = intent.getIntExtra("amount", 0);
-        referenceId = intent.getStringExtra("referenceId");
-        orderId = intent.getStringExtra("orderId");
-        grossAmount = intent.getStringExtra("grossAmount");
-        transactionId = intent.getStringExtra("transactionId");
-        transactionTime = intent.getStringExtra("transactionTime");
-        acquirer = intent.getStringExtra("acquirer");
-        merchantId = intent.getStringExtra("merchantId");
-
-        if (orderId == null || transactionId == null) {
-            Log.e("QrisResultFlow", "orderId or transactionId is null! Intent extras: " + intent.getExtras());
-            android.widget.Toast.makeText(this, "Missing transaction details!", android.widget.Toast.LENGTH_LONG).show();
-        }
-
-        // Get the exact amount from the grossAmount string value instead of the integer
-        String amountStr = "Amount: " + grossAmount;
-        amountTextView.setText(amountStr);
-        referenceTextView.setText("Reference ID: " + referenceId);
-
-        // Load QR image
-        new DownloadImageTask(qrImageView).execute(qrImageUrl);
-
-        // Disable check status button initially
-        checkStatusButton.setEnabled(false);
-        // Start polling for pending payment log
-        pollPendingPaymentLog(orderId);
-
-        // Download QRIS button
-        downloadQrisButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                qrImageView.setDrawingCacheEnabled(true);
-                Bitmap bitmap = qrImageView.getDrawingCache();
-                if (bitmap != null) {
-                    saveImageToGallery(bitmap, "qris_code_" + System.currentTimeMillis());
-                }
-                qrImageView.setDrawingCacheEnabled(false);
-            }
-        });
-
-        // Check Payment Status button
-        checkStatusButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                simulateWebhook();
-            }
-        });
-
-        // Return to Main Screen button
-        returnMainButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                Intent intent = new Intent(QrisResultActivity.this, com.example.bdkipoc.MainActivity.class);
-                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
-                startActivity(intent);
-                finishAffinity();
-            }
-        });
-    }
-
-    private static class DownloadImageTask extends AsyncTask<String, Void, Bitmap> {
-        ImageView bmImage;
-        DownloadImageTask(ImageView bmImage) {
-            this.bmImage = bmImage;
-        }
-        protected Bitmap doInBackground(String... urls) {
-            String urlDisplay = urls[0];
-            Bitmap bitmap = null;
-            try {
-                URL url = new URI(urlDisplay).toURL();
-                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
-                connection.setDoInput(true);
-                connection.connect();
-                InputStream input = connection.getInputStream();
-                bitmap = BitmapFactory.decodeStream(input);
-            } catch (Exception e) {
-                e.printStackTrace();
-            }
-            return bitmap;
-        }
-        protected void onPostExecute(Bitmap result) {
-            if (result != null) {
-                bmImage.setImageBitmap(result);
-            }
-        }
-    }
-
-    // Save bitmap to gallery
-    private void saveImageToGallery(Bitmap bitmap, String fileName) {
-        try {
-            String savedImageURL = android.provider.MediaStore.Images.Media.insertImage(
-                    getContentResolver(), bitmap, fileName, "QRIS Payment QR Code");
-            if (savedImageURL != null) {
-                android.widget.Toast.makeText(this, "QRIS saved to gallery", android.widget.Toast.LENGTH_SHORT).show();
-            } else {
-                android.widget.Toast.makeText(this, "Failed to save QRIS", android.widget.Toast.LENGTH_SHORT).show();
-            }
-        } catch (Exception e) {
-            android.widget.Toast.makeText(this, "Error saving QRIS: " + e.getMessage(), android.widget.Toast.LENGTH_LONG).show();
-        }
-    }
-
-    private void pollPendingPaymentLog(final String orderId) {
-        Log.d("QrisResultFlow", "Polling for orderId (transaction_uuid): " + orderId);
-        progressBar.setVisibility(View.VISIBLE);
-        new Thread(() -> {
-            int maxAttempts = 10;
-            int intervalMs = 1500;
-            int attempt = 0;
-            boolean found = false;
-            while (attempt < maxAttempts && !found) {
-                try {
-                    String urlStr = backendBase + "/api-logs?request_body_search_strict={\"order_id\":\"" + orderId + "\"}";
-                    Log.d("QrisResultFlow", "Polling URL: " + urlStr);
-                    URL url = new URL(urlStr);
-                    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
-                    conn.setRequestMethod("GET");
-                    conn.setRequestProperty("Accept", "application/json");
-                    int responseCode = conn.getResponseCode();
-                    if (responseCode == 200) {
-                        BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
-                        StringBuilder response = new StringBuilder();
-                        String line;
-                        while ((line = br.readLine()) != null) {
-                            response.append(line);
-                        }
-                        JSONObject json = new JSONObject(response.toString());
-                        JSONArray results = json.optJSONArray("results");
-                        if (results != null && results.length() > 0) {
-                            for (int i = 0; i < results.length(); i++) {
-                                JSONObject log = results.getJSONObject(i);
-                                JSONObject reqBody = log.optJSONObject("request_body");
-                                if (reqBody != null && "pending".equals(reqBody.optString("transaction_status"))) {
-                                    found = true;
-                                    break;
-                                }
-                            }
-                        }
-                    }
-                } catch (Exception e) {
-                    Log.e("QrisResultFlow", "Polling error: " + e.getMessage(), e);
-                }
-                if (!found) {
-                    attempt++;
-                    try { Thread.sleep(intervalMs); } catch (InterruptedException ignored) {}
-                }
-            }
-            final boolean logFound = found;
-            new Handler(Looper.getMainLooper()).post(() -> {
-                progressBar.setVisibility(View.GONE);
-                if (logFound) {
-                    checkStatusButton.setEnabled(true);
-                    android.widget.Toast.makeText(QrisResultActivity.this, "Pending payment log found!", android.widget.Toast.LENGTH_SHORT).show();
-                } else {
-                    android.widget.Toast.makeText(QrisResultActivity.this, "Pending payment log NOT found.", android.widget.Toast.LENGTH_LONG).show();
-                }
-            });
-        }).start();
-    }
-
-    // Simulate webhook callback
-    private void simulateWebhook() {
-        progressBar.setVisibility(View.VISIBLE);
-        new Thread(() -> {
-            try {
-                JSONObject payload = new JSONObject();
-                payload.put("transaction_type", "on-us");
-                payload.put("transaction_time", transactionTime != null ? transactionTime : "2025-04-16T06:00:00Z");
-                payload.put("transaction_status", "settlement");
-                payload.put("transaction_id", transactionId); // Use the actual transaction_id
-                payload.put("status_message", "midtrans payment notification");
-                payload.put("status_code", "200");
-                payload.put("signature_key", "dummy_signature");
-                payload.put("settlement_time", transactionTime != null ? transactionTime : "2025-04-16T06:00:00Z");
-                payload.put("payment_type", "qris");
-                payload.put("order_id", orderId); // Use order_id
-                payload.put("merchant_id", merchantId != null ? merchantId : "DUMMY_MERCHANT_ID");
-                payload.put("issuer", acquirer != null ? acquirer : "gopay");
-                payload.put("gross_amount", grossAmount); // Use exact gross amount
-                payload.put("fraud_status", "accept");
-                payload.put("currency", "IDR");
-                payload.put("acquirer", acquirer != null ? acquirer : "gopay");
-                payload.put("shopeepay_reference_number", "");
-                payload.put("reference_id", referenceId != null ? referenceId : "DUMMY_REFERENCE_ID");
-                Log.d("QrisResultFlow", "Webhook payload: " + payload.toString());
-
-                URL url = new URL(webhookUrl);
-                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
-                conn.setRequestMethod("POST");
-                conn.setRequestProperty("Content-Type", "application/json");
-                conn.setDoOutput(true);
-                OutputStream os = conn.getOutputStream();
-                os.write(payload.toString().getBytes());
-                os.flush();
-                os.close();
-                int responseCode = conn.getResponseCode();
-                BufferedReader br = new BufferedReader(new InputStreamReader(
-                        responseCode < 400 ? conn.getInputStream() : conn.getErrorStream()));
-                StringBuilder response = new StringBuilder();
-                String line;
-                while ((line = br.readLine()) != null) {
-                    response.append(line);
-                }
-                Log.d("QrisResultFlow", "Webhook response: " + response.toString());
-            } catch (Exception e) {
-                Log.e("QrisResultFlow", "Webhook error: " + e.getMessage(), e);
-            }
-            new Handler(Looper.getMainLooper()).post(() -> {
-                progressBar.setVisibility(View.GONE);
-                // Proceed to show status/result
-                qrImageView.setVisibility(View.GONE);
-                amountTextView.setVisibility(View.GONE);
-                referenceTextView.setVisibility(View.GONE);
-                downloadQrisButton.setVisibility(View.GONE);
-                checkStatusButton.setVisibility(View.GONE);
-                statusTextView.setVisibility(View.VISIBLE);
-                returnMainButton.setVisibility(View.VISIBLE);
-            });
-        }).start();
-    }
-}

app/src/main/java/com/example/bdkipoc/StyleHelper.java

@@ -0,0 +1,106 @@
+package com.example.bdkipoc;
+
+import android.content.Context;
+import android.graphics.drawable.GradientDrawable;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+import androidx.core.content.ContextCompat;
+
+public class StyleHelper {
+    
+    /**
+     * Create rounded rectangle drawable programmatically
+     */
+    public static GradientDrawable createRoundedDrawable(int color, int strokeColor, int strokeWidth, int radius) {
+        GradientDrawable drawable = new GradientDrawable();
+        drawable.setShape(GradientDrawable.RECTANGLE);
+        drawable.setColor(color);
+        drawable.setStroke(strokeWidth, strokeColor);
+        drawable.setCornerRadius(radius);
+        return drawable;
+    }
+    
+    /**
+     * Apply search input styling
+     */
+    public static void applySearchInputStyle(View view, Context context) {
+        int white = ContextCompat.getColor(context, android.R.color.white);
+        int lightGrey = ContextCompat.getColor(context, android.R.color.darker_gray);
+        // ✅ IMPROVED: Larger corner radius and lighter border like in the image
+        GradientDrawable drawable = createRoundedDrawable(white, lightGrey, 1, 75); // 25dp radius, thinner border
+        view.setBackground(drawable);
+    }
+    
+    /**
+     * Apply filter button styling
+     */
+    public static void applyFilterButtonStyle(View view, Context context) {
+        int white = ContextCompat.getColor(context, android.R.color.white);
+        int lightGrey = ContextCompat.getColor(context, android.R.color.darker_gray);
+        // ✅ IMPROVED: Larger corner radius like in the image
+        GradientDrawable drawable = createRoundedDrawable(white, lightGrey, 1, 75); // 25dp radius, thinner border
+        view.setBackground(drawable);
+    }
+    
+    /**
+     * Apply pagination button styling (simple version)
+     */
+    public static void applyPaginationButtonStyle(View view, Context context, boolean isActive) {
+        int backgroundColor, strokeColor;
+        
+        if (isActive) {
+            backgroundColor = ContextCompat.getColor(context, android.R.color.holo_red_dark);
+            strokeColor = ContextCompat.getColor(context, android.R.color.holo_red_dark);
+        } else {
+            backgroundColor = ContextCompat.getColor(context, android.R.color.white);
+            strokeColor = ContextCompat.getColor(context, android.R.color.transparent);
+        }
+        
+        // ✅ IMPROVED: Larger corner radius for modern look (like in the image)
+        GradientDrawable drawable = createRoundedDrawable(backgroundColor, strokeColor, 0, 48); // 16dp radius
+        view.setBackground(drawable);
+        
+        // Set text color if it's a TextView
+        if (view instanceof TextView) {
+            int textColor = isActive ? 
+                ContextCompat.getColor(context, android.R.color.white) : 
+                ContextCompat.getColor(context, android.R.color.black);
+            ((TextView) view).setTextColor(textColor);
+        }
+    }
+    
+    /**
+     * Apply status text color only (no background badge)
+     */
+    public static void applyStatusTextColor(TextView textView, Context context, String status) {
+        String statusLower = status != null ? status.toLowerCase() : "";
+        int textColor;
+        
+        if (statusLower.equals("failed") || statusLower.equals("failure") || 
+            statusLower.equals("error") || statusLower.equals("declined") || 
+            statusLower.equals("expire") || statusLower.equals("cancel")) {
+            // Red text for failed/error statuses
+            textColor = ContextCompat.getColor(context, android.R.color.holo_red_dark);
+        } else if (statusLower.equals("success") || statusLower.equals("paid") || 
+                statusLower.equals("settlement") || statusLower.equals("completed") ||
+                statusLower.equals("capture")) {
+            // Green text for successful statuses
+            textColor = ContextCompat.getColor(context, android.R.color.holo_green_dark);
+        } else if (statusLower.equals("pending") || statusLower.equals("processing") || 
+                statusLower.equals("waiting") || statusLower.equals("checking...") || 
+                statusLower.equals("checking")) {
+            // Orange text for pending/processing statuses
+            textColor = ContextCompat.getColor(context, android.R.color.holo_orange_dark);
+        } else if (statusLower.equals("init")) {
+            // Blue text for init status
+            textColor = ContextCompat.getColor(context, android.R.color.holo_blue_dark);
+        } else {
+            // Default gray text for unknown statuses
+            textColor = ContextCompat.getColor(context, android.R.color.darker_gray);
+        }
+        
+        textView.setTextColor(textColor);
+        textView.setBackground(null); // Remove any background
+    }
+}

app/src/main/java/com/example/bdkipoc/TransactionActivity.java

@@ -1,204 +0,0 @@
-package com.example.bdkipoc;
-
-import android.os.AsyncTask;
-import android.os.Bundle;
-import android.view.View;
-import android.widget.ProgressBar;
-import android.widget.Toast;
-
-import androidx.annotation.Nullable;
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.recyclerview.widget.LinearLayoutManager;
-import androidx.recyclerview.widget.RecyclerView;
-import com.google.android.material.floatingactionbutton.FloatingActionButton;
-
-import org.json.JSONArray;
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.net.HttpURLConnection;
-import java.net.URI;
-import java.net.URISyntaxException;
-import java.net.URL;
-import java.util.ArrayList;
-import java.util.List;
-
-public class TransactionActivity extends AppCompatActivity {
-    private RecyclerView recyclerView;
-    private TransactionAdapter adapter;
-    private ProgressBar progressBar;
-    private FloatingActionButton refreshButton;
-    private int page = 0;
-    private final int limit = 10;
-    private boolean isLoading = false;
-    private boolean isLastPage = false;
-    private List<Transaction> transactionList = new ArrayList<>();
-
-    @Override
-    protected void onCreate(@Nullable Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_transaction);
-
-        // Set up the toolbar as the action bar
-        androidx.appcompat.widget.Toolbar toolbar = findViewById(R.id.toolbar);
-        setSupportActionBar(toolbar);
-        
-        // Enable the back button in the action bar
-        if (getSupportActionBar() != null) {
-            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
-            getSupportActionBar().setDisplayShowHomeEnabled(true);
-        }
-
-        recyclerView = findViewById(R.id.recyclerView);
-        progressBar = findViewById(R.id.progressBar);
-        refreshButton = findViewById(R.id.refreshButton);
-
-        adapter = new TransactionAdapter(transactionList);
-        recyclerView.setLayoutManager(new LinearLayoutManager(this));
-        recyclerView.setAdapter(adapter);
-
-        refreshButton.setOnClickListener(v -> refreshTransactions());
-
-        recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
-            @Override
-            public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
-                super.onScrolled(recyclerView, dx, dy);
-                if (!recyclerView.canScrollVertically(1) && !isLoading && !isLastPage) {
-                    loadTransactions(page + 1);
-                }
-            }
-        });
-
-        loadTransactions(0);
-    }
-
-    private void refreshTransactions() {
-        page = 0;
-        isLastPage = false;
-        transactionList.clear();
-        adapter.notifyDataSetChanged();
-        loadTransactions(0);
-    }
-
-    private void loadTransactions(int pageToLoad) {
-        isLoading = true;
-        progressBar.setVisibility(View.VISIBLE);
-        new FetchTransactionsTask(pageToLoad).execute();
-    }
-
-    private class FetchTransactionsTask extends AsyncTask<Void, Void, List<Transaction>> {
-        private int pageToLoad;
-        private boolean error = false;
-        private int total = 0;
-
-        FetchTransactionsTask(int page) {
-            this.pageToLoad = page;
-        }
-
-        @Override
-        protected List<Transaction> doInBackground(Void... voids) {
-            List<Transaction> result = new ArrayList<>();
-            try {
-                String urlString = "https://be-edc.msvc.app/transactions?page=" + pageToLoad + "&limit=" + limit + "&sortOrder=DESC&from_date=&to_date=&location_id=0&merchant_id=0&tid=73001500&mid=71000026521&sortColumn=id";
-                URI uri = new URI(urlString);
-                URL url = uri.toURL();
-                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
-                conn.setRequestMethod("GET");
-                conn.setRequestProperty("accept", "*/*");
-                int responseCode = conn.getResponseCode();
-                if (responseCode == 200) {
-                    BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
-                    StringBuilder response = new StringBuilder();
-                    String line;
-                    while ((line = in.readLine()) != null) {
-                        response.append(line);
-                    }
-                    in.close();
-                    JSONObject jsonObject = new JSONObject(response.toString());
-                    JSONObject results = jsonObject.getJSONObject("results");
-                    total = results.getInt("total");
-                    JSONArray data = results.getJSONArray("data");
-                    for (int i = 0; i < data.length(); i++) {
-                        JSONObject t = data.getJSONObject(i);
-                        Transaction tx = new Transaction(
-                                t.getInt("id"),
-                                t.getString("type"),
-                                t.getString("channel_category"),
-                                t.getString("channel_code"),
-                                t.getString("reference_id"),
-                                t.getString("amount"),
-                                t.getString("cashflow"),
-                                t.getString("status"),
-                                t.getString("created_at"),
-                                t.getString("merchant_name")
-                        );
-                        result.add(tx);
-                    }
-                } else {
-                    error = true;
-                }
-            } catch (IOException | JSONException | URISyntaxException e) {
-                error = true;
-            }
-            return result;
-        }
-
-        @Override
-        protected void onPostExecute(List<Transaction> transactions) {
-            isLoading = false;
-            progressBar.setVisibility(View.GONE);
-            if (error) {
-                Toast.makeText(TransactionActivity.this, "Failed to fetch transactions", Toast.LENGTH_SHORT).show();
-                return;
-            }
-            if (pageToLoad == 0) {
-                transactionList.clear();
-            }
-            transactionList.addAll(transactions);
-            adapter.notifyDataSetChanged();
-            page = pageToLoad;
-            if (transactionList.size() >= total) {
-                isLastPage = true;
-            }
-        }
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(android.view.MenuItem item) {
-        if (item.getItemId() == android.R.id.home) {
-            // Handle the back button click
-            finish();
-            return true;
-        }
-        return super.onOptionsItemSelected(item);
-    }
-
-    static class Transaction {
-        int id;
-        String type;
-        String channelCategory;
-        String channelCode;
-        String referenceId;
-        String amount;
-        String cashflow;
-        String status;
-        String createdAt;
-        String merchantName;
-
-        Transaction(int id, String type, String channelCategory, String channelCode, String referenceId, String amount, String cashflow, String status, String createdAt, String merchantName) {
-            this.id = id;
-            this.type = type;
-            this.channelCategory = channelCategory;
-            this.channelCode = channelCode;
-            this.referenceId = referenceId;
-            this.amount = amount;
-            this.cashflow = cashflow;
-            this.status = status;
-            this.createdAt = createdAt;
-            this.merchantName = merchantName;
-        }
-    }
-}

app/src/main/java/com/example/bdkipoc/TransactionAdapter.java

@@ -1,64 +0,0 @@
-package com.example.bdkipoc;
-
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextView;
-
-import androidx.annotation.NonNull;
-import androidx.recyclerview.widget.RecyclerView;
-
-import java.util.List;
-import java.text.NumberFormat;
-import java.util.Locale;
-
-public class TransactionAdapter extends RecyclerView.Adapter<TransactionAdapter.TransactionViewHolder> {
-    private List<TransactionActivity.Transaction> transactionList;
-
-    public TransactionAdapter(List<TransactionActivity.Transaction> transactionList) {
-        this.transactionList = transactionList;
-    }
-
-    @NonNull
-    @Override
-    public TransactionViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
-        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_transaction, parent, false);
-        return new TransactionViewHolder(view);
-    }
-
-    @Override
-    public void onBindViewHolder(@NonNull TransactionViewHolder holder, int position) {
-        TransactionActivity.Transaction t = transactionList.get(position);
-        
-        // Format the amount as Indonesian Rupiah
-        try {
-            double amountValue = Double.parseDouble(t.amount);
-            NumberFormat rupiahFormat = NumberFormat.getCurrencyInstance(new Locale.Builder().setLanguage("id").setRegion("ID").build());
-            holder.amount.setText(rupiahFormat.format(amountValue));
-        } catch (NumberFormatException e) {
-            holder.amount.setText("Rp " + t.amount);
-        }
-        
-        holder.status.setText(t.status);
-        holder.referenceId.setText(t.referenceId);
-        holder.merchantName.setText(t.merchantName);
-        holder.createdAt.setText(t.createdAt.replace("T", " ").substring(0, 19));
-    }
-
-    @Override
-    public int getItemCount() {
-        return transactionList.size();
-    }
-
-    static class TransactionViewHolder extends RecyclerView.ViewHolder {
-        TextView amount, status, referenceId, merchantName, createdAt;
-        public TransactionViewHolder(@NonNull View itemView) {
-            super(itemView);
-            amount = itemView.findViewById(R.id.textAmount);
-            status = itemView.findViewById(R.id.textStatus);
-            referenceId = itemView.findViewById(R.id.textReferenceId);
-            merchantName = itemView.findViewById(R.id.textMerchantName);
-            createdAt = itemView.findViewById(R.id.textCreatedAt);
-        }
-    }
-}

app/src/main/java/com/example/bdkipoc/cetakulang/ReprintAdapterActivity.java

@@ -0,0 +1,581 @@
+package com.example.bdkipoc.cetakulang;
+
+import com.example.bdkipoc.R;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+import android.widget.LinearLayout;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.core.content.ContextCompat;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStream; // ✅ ADDED: Missing import
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.List;
+import java.util.Locale;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import com.example.bdkipoc.StyleHelper;
+
+public class ReprintAdapterActivity extends RecyclerView.Adapter<ReprintAdapterActivity.TransactionViewHolder> {
+    private List<ReprintActivity.Transaction> transactionList;
+    private OnPrintClickListener printClickListener;
+
+    public interface OnPrintClickListener {
+        void onPrintClick(ReprintActivity.Transaction transaction);
+    }
+
+    public ReprintAdapterActivity(List<ReprintActivity.Transaction> transactionList) {
+        this.transactionList = transactionList;
+    }
+
+    public void setPrintClickListener(OnPrintClickListener listener) {
+        this.printClickListener = listener;
+    }
+
+    /**
+     * Update data without numbering (removed as per request)
+     */
+    public void updateData(List<ReprintActivity.Transaction> newData, int startIndex) {
+        this.transactionList = newData;
+        notifyDataSetChanged();
+        
+        Log.d("ReprintAdapterActivity", "📋 Data updated: " + newData.size() + " items");
+    }
+
+    @NonNull
+    @Override
+    public TransactionViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_reprint, parent, false);
+        return new TransactionViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull TransactionViewHolder holder, int position) {
+        ReprintActivity.Transaction t = transactionList.get(position);
+        
+        // ✅ STRIPE TABLE: Set alternating row colors
+        LinearLayout itemContainer = holder.itemView.findViewById(R.id.itemContainer);
+        if (position % 2 == 0) {
+            // Even rows - white background
+            itemContainer.setBackgroundColor(ContextCompat.getColor(holder.itemView.getContext(), android.R.color.white));
+        } else {
+            // Odd rows - light gray background  
+            itemContainer.setBackgroundColor(ContextCompat.getColor(holder.itemView.getContext(), android.R.color.background_light));
+        }
+        
+        Log.d("ReprintAdapterActivity", "📋 Binding transaction " + position + ":");
+        Log.d("ReprintAdapterActivity", "   Reference: " + t.referenceId);
+        Log.d("ReprintAdapterActivity", "   Status: " + t.status);
+        Log.d("ReprintAdapterActivity", "   Amount: " + t.amount);
+        
+        // Set reference ID
+        holder.referenceId.setText(t.referenceId);
+        
+        // Format the amount as Indonesian Rupiah
+        try {
+            String cleanAmount = cleanAmountString(t.amount);
+            long amountValue = Long.parseLong(cleanAmount);
+            String formattedAmount = formatRupiah(amountValue);
+            holder.amount.setText(formattedAmount);
+            
+            Log.d("ReprintAdapterActivity", "💰 Amount processed: '" + t.amount + "' -> '" + formattedAmount + "'");
+            
+        } catch (NumberFormatException e) {
+            Log.e("ReprintAdapterActivity", "❌ Amount format error: " + t.amount, e);
+            String fallback = t.amount.startsWith("Rp") ? t.amount : "Rp " + t.amount;
+            holder.amount.setText(fallback);
+        }
+
+        // ✅ ENHANCED STATUS HANDLING dengan comprehensive checking
+        String displayStatus = t.status;
+        
+        Log.d("ReprintAdapterActivity", "🔍 Checking status for: " + t.referenceId + " (current: " + displayStatus + ")");
+        
+        // Jika status adalah INIT atau PENDING, lakukan comprehensive check
+        if ("INIT".equalsIgnoreCase(t.status) || "PENDING".equalsIgnoreCase(t.status)) {
+            if (t.referenceId != null && !t.referenceId.isEmpty()) {
+                // Show checking state
+                holder.status.setText("CHECKING...");
+                StyleHelper.applyStatusTextColor(holder.status, holder.itemView.getContext(), "CHECKING");
+                
+                Log.d("ReprintAdapterActivity", "🔄 Starting comprehensive check for: " + t.referenceId);
+                
+                // Check real status dari semua kemungkinan sources
+                checkMidtransStatus(t.referenceId, holder.status);
+            } else {
+                // No reference ID to check
+                holder.status.setText(displayStatus.toUpperCase());
+                StyleHelper.applyStatusTextColor(holder.status, holder.itemView.getContext(), displayStatus);
+                Log.w("ReprintAdapterActivity", "⚠️ No reference ID for status check");
+            }
+        } else {
+            // Use existing status yang sudah confirmed
+            holder.status.setText(displayStatus.toUpperCase());
+            StyleHelper.applyStatusTextColor(holder.status, holder.itemView.getContext(), displayStatus);
+            Log.d("ReprintAdapterActivity", "✅ Using confirmed status: " + displayStatus);
+        }
+
+        // Set payment method
+        String paymentMethod = getPaymentMethodName(t.channelCode, t.channelCategory);
+        holder.paymentMethod.setText(paymentMethod);
+
+        // ✅ FORMAT AND DISPLAY CREATED AT
+        String formattedDate = formatCreatedAtDate(t.createdAt);
+        holder.createdAt.setText(formattedDate);
+        
+        Log.d("ReprintAdapterActivity", "📅 Created at: " + t.createdAt + " -> " + formattedDate);
+
+        // Set click listeners
+        holder.itemView.setOnClickListener(v -> {
+            if (printClickListener != null) {
+                printClickListener.onPrintClick(t);
+            }
+        });
+
+        holder.printSection.setOnClickListener(v -> {
+            if (printClickListener != null) {
+                printClickListener.onPrintClick(t);
+            }
+        });
+        
+        Log.d("ReprintAdapterActivity", "✅ Transaction binding complete for: " + t.referenceId);
+    }
+
+    private String cleanAmountString(String amount) {
+        if (amount == null || amount.isEmpty()) {
+            return "0";
+        }
+        
+        Log.d("ReprintAdapterActivity", "Cleaning amount: '" + amount + "'");
+        
+        // Remove currency symbols and spaces
+        String cleaned = amount
+                .replace("Rp. ", "")
+                .replace("Rp ", "")
+                .replace("IDR ", "")
+                .replace(" ", "")
+                .trim();
+        
+        // Handle dots properly
+        if (cleaned.contains(".")) {
+            // Split by dots
+            String[] parts = cleaned.split("\\.");
+            
+            if (parts.length == 2) {
+                String beforeDot = parts[0];
+                String afterDot = parts[1];
+                
+                // Check if it's decimal format (like "1000.00") or thousand separator (like "1.000")
+                if (afterDot.length() <= 2 && (afterDot.equals("00") || afterDot.equals("0"))) {
+                    // It's decimal format - keep only the integer part
+                    cleaned = beforeDot;
+                } else if (afterDot.length() == 3) {
+                    // It's thousand separator format - combine parts
+                    cleaned = beforeDot + afterDot;
+                } else {
+                    // Ambiguous case - assume thousand separator if beforeDot is short
+                    if (beforeDot.length() <= 3) {
+                        cleaned = beforeDot + afterDot;
+                    } else {
+                        cleaned = beforeDot; // Assume decimal
+                    }
+                }
+            } else if (parts.length > 2) {
+                // Multiple dots - assume all are thousand separators
+                cleaned = String.join("", parts);
+            }
+        }
+        
+        // Remove any commas
+        cleaned = cleaned.replace(",", "");
+        
+        Log.d("ReprintAdapterActivity", "Cleaned result: '" + cleaned + "'");
+        return cleaned;
+    }
+
+    /**
+     * Format long amount to Indonesian Rupiah format
+     */
+    private String formatRupiah(long amount) {
+        // Use dots as thousand separators (Indonesian format)
+        String formatted = String.format("%,d", amount).replace(',', '.');
+        return "Rp. " + formatted;
+    }
+
+    // ✅ FIXED: Enhanced status checking with comprehensive search
+    private void checkMidtransStatus(String referenceId, TextView statusTextView) {
+        new Thread(() -> {
+            try {
+                Log.d("ReprintAdapterActivity", "🔍 Comprehensive status check for reference: " + referenceId);
+                
+                // STEP 1: Query webhook logs untuk semua order_id yang terkait
+                String queryUrl = "https://be-edc.msvc.app/api-logs?limit=200&sortOrder=DESC&sortColumn=created_at";
+                
+                URL url = new URL(queryUrl);
+                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+                conn.setRequestMethod("GET");
+                conn.setRequestProperty("Accept", "application/json");
+                conn.setConnectTimeout(10000);
+                conn.setReadTimeout(10000);
+                
+                if (conn.getResponseCode() == 200) {
+                    BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
+                    StringBuilder response = new StringBuilder();
+                    String line;
+                    while ((line = br.readLine()) != null) {
+                        response.append(line);
+                    }
+                    
+                    JSONObject json = new JSONObject(response.toString());
+                    JSONArray results = json.optJSONArray("results");
+                    
+                    String finalStatus = "INIT"; // Default
+                    String foundOrderId = null;
+                    String foundAcquirer = null;
+                    
+                    if (results != null && results.length() > 0) {
+                        Log.d("ReprintAdapterActivity", "📊 Processing " + results.length() + " log entries");
+                        
+                        // STEP 2: Comprehensive search dengan multiple matching strategies
+                        for (int i = 0; i < results.length(); i++) {
+                            JSONObject log = results.getJSONObject(i);
+                            JSONObject reqBody = log.optJSONObject("request_body");
+                            
+                            if (reqBody != null) {
+                                String logOrderId = reqBody.optString("order_id", "");
+                                String logTransactionStatus = reqBody.optString("transaction_status", "");
+                                String logReferenceId = reqBody.optString("reference_id", "");
+                                String logAcquirer = reqBody.optString("acquirer", "");
+                                
+                                // ✅ METHOD 1: Direct reference_id match
+                                boolean isDirectMatch = referenceId.equals(logReferenceId);
+                                
+                                // ✅ METHOD 2: Check custom_field1 untuk QR refresh tracking
+                                boolean isRefreshMatch = false;
+                                String customField1 = reqBody.optString("custom_field1", "");
+                                if (!customField1.isEmpty()) {
+                                    try {
+                                        JSONObject customData = new JSONObject(customField1);
+                                        String originalReference = customData.optString("original_reference", "");
+                                        String appReferenceId = customData.optString("app_reference_id", "");
+                                        if (referenceId.equals(originalReference) || referenceId.equals(appReferenceId)) {
+                                            isRefreshMatch = true;
+                                            Log.d("ReprintAdapterActivity", "🔄 Found refresh match: " + logOrderId);
+                                        }
+                                    } catch (JSONException e) {
+                                        // Ignore custom field parsing errors
+                                    }
+                                }
+                                
+                                // ✅ METHOD 3: Check item details untuk backup tracking
+                                boolean isItemMatch = false;
+                                JSONArray itemDetails = reqBody.optJSONArray("item_details");
+                                if (itemDetails != null && itemDetails.length() > 0) {
+                                    for (int j = 0; j < itemDetails.length(); j++) {
+                                        JSONObject item = itemDetails.optJSONObject(j);
+                                        if (item != null) {
+                                            String itemName = item.optString("name", "");
+                                            if (itemName.contains("(Ref: " + referenceId + ")") || 
+                                                itemName.contains("- " + referenceId)) {
+                                                isItemMatch = true;
+                                                Log.d("ReprintAdapterActivity", "📦 Found item match: " + logOrderId);
+                                                break;
+                                            }
+                                        }
+                                    }
+                                }
+                                
+                                // ✅ COMPREHENSIVE MATCH: Any of the three methods
+                                boolean isRelatedTransaction = isDirectMatch || isRefreshMatch || isItemMatch;
+                                
+                                if (isRelatedTransaction) {
+                                    Log.d("ReprintAdapterActivity", "🎯 MATCH FOUND!");
+                                    Log.d("ReprintAdapterActivity", "   Order ID: " + logOrderId);
+                                    Log.d("ReprintAdapterActivity", "   Status: " + logTransactionStatus);
+                                    Log.d("ReprintAdapterActivity", "   Acquirer: " + logAcquirer);
+                                    Log.d("ReprintAdapterActivity", "   Match Type: " + 
+                                        (isDirectMatch ? "DIRECT " : "") + 
+                                        (isRefreshMatch ? "REFRESH " : "") + 
+                                        (isItemMatch ? "ITEM" : ""));
+                                    
+                                    // ✅ PRIORITY SYSTEM: settlement > capture > success > pending > init
+                                    if (logTransactionStatus.equals("settlement") || 
+                                        logTransactionStatus.equals("capture") ||
+                                        logTransactionStatus.equals("success")) {
+                                        finalStatus = "PAID";
+                                        foundOrderId = logOrderId;
+                                        foundAcquirer = logAcquirer;
+                                        Log.d("ReprintAdapterActivity", "✅ PAYMENT CONFIRMED: " + logOrderId + " -> " + logTransactionStatus);
+                                        break; // Found paid status, stop searching
+                                    } else if (logTransactionStatus.equals("pending") && finalStatus.equals("INIT")) {
+                                        finalStatus = "PENDING";
+                                        foundOrderId = logOrderId;
+                                        foundAcquirer = logAcquirer;
+                                        Log.d("ReprintAdapterActivity", "⏳ PENDING found: " + logOrderId);
+                                    } else if (logTransactionStatus.equals("expire") || logTransactionStatus.equals("cancel")) {
+                                        if (finalStatus.equals("INIT")) { // Only update if no better status found
+                                            finalStatus = "FAILED";
+                                            foundOrderId = logOrderId;
+                                            foundAcquirer = logAcquirer;
+                                            Log.d("ReprintAdapterActivity", "❌ FAILED status: " + logOrderId + " -> " + logTransactionStatus);
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                        
+                        Log.d("ReprintAdapterActivity", "🔍 FINAL RESULT for " + referenceId + ":");
+                        Log.d("ReprintAdapterActivity", "   Status: " + finalStatus);
+                        Log.d("ReprintAdapterActivity", "   Order ID: " + (foundOrderId != null ? foundOrderId : "N/A"));
+                        Log.d("ReprintAdapterActivity", "   Acquirer: " + (foundAcquirer != null ? foundAcquirer : "N/A"));
+                    }
+                    
+                    // STEP 3: Update UI di main thread
+                    final String displayStatus = finalStatus;
+                    final String detectedAcquirer = foundAcquirer;
+                    
+                    statusTextView.post(() -> {
+                        statusTextView.setText(displayStatus);
+                        StyleHelper.applyStatusTextColor(statusTextView, statusTextView.getContext(), displayStatus);
+                        
+                        Log.d("ReprintAdapterActivity", "🎨 UI UPDATED:");
+                        Log.d("ReprintAdapterActivity", "   Reference: " + referenceId);
+                        Log.d("ReprintAdapterActivity", "   Display Status: " + displayStatus);
+                        Log.d("ReprintAdapterActivity", "   Detected Acquirer: " + (detectedAcquirer != null ? detectedAcquirer : "Unknown"));
+                    });
+                    
+                    // ✅ BONUS: Update backend jika status berubah ke PAID
+                    if (finalStatus.equals("PAID")) {
+                        updateBackendTransactionStatus(referenceId, finalStatus, foundOrderId, detectedAcquirer);
+                    }
+                    
+                } else {
+                    Log.w("ReprintAdapterActivity", "⚠️ API call failed with code: " + conn.getResponseCode());
+                    statusTextView.post(() -> {
+                        statusTextView.setText("ERROR");
+                        StyleHelper.applyStatusTextColor(statusTextView, statusTextView.getContext(), "ERROR");
+                    });
+                }
+                
+            } catch (IOException | JSONException e) {
+                Log.e("ReprintAdapterActivity", "❌ Comprehensive status check error: " + e.getMessage(), e);
+                statusTextView.post(() -> {
+                    statusTextView.setText("INIT");
+                    StyleHelper.applyStatusTextColor(statusTextView, statusTextView.getContext(), "INIT");
+                });
+            }
+        }).start();
+    }
+
+    /**
+     * ✅ NEW METHOD: Update backend transaction status when payment confirmed
+     */
+    private void updateBackendTransactionStatus(String referenceId, String status, String orderId, String acquirer) {
+        new Thread(() -> {
+            try {
+                Log.d("ReprintAdapterActivity", "🔄 Updating backend status for reference: " + referenceId);
+                
+                JSONObject updatePayload = new JSONObject();
+                updatePayload.put("status", status);
+                updatePayload.put("payment_status", status);
+                updatePayload.put("paid_order_id", orderId);
+                updatePayload.put("detected_acquirer", acquirer);
+                updatePayload.put("updated_at", new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'").format(new Date()));
+                updatePayload.put("settlement_time", new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'").format(new Date()));
+                
+                String updateUrl = "https://be-edc.msvc.app/transactions/update-by-reference";
+                URL url = new URL(updateUrl);
+                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+                conn.setRequestMethod("POST");
+                conn.setRequestProperty("Content-Type", "application/json");
+                conn.setRequestProperty("Accept", "application/json");
+                conn.setRequestProperty("User-Agent", "BDKIPOCApp/1.0");
+                conn.setDoOutput(true);
+                conn.setConnectTimeout(15000);
+                conn.setReadTimeout(15000);
+                
+                JSONObject requestBody = new JSONObject();
+                requestBody.put("reference_id", referenceId);
+                requestBody.put("update_data", updatePayload);
+                
+                try (OutputStream os = conn.getOutputStream()) {
+                    byte[] input = requestBody.toString().getBytes("utf-8");
+                    os.write(input, 0, input.length);
+                }
+                
+                int responseCode = conn.getResponseCode();
+                Log.d("ReprintAdapterActivity", "📥 Backend update response: " + responseCode);
+                
+                if (responseCode == 200 || responseCode == 201) {
+                    Log.d("ReprintAdapterActivity", "✅ Backend status updated successfully");
+                } else {
+                    Log.e("ReprintAdapterActivity", "❌ Backend update failed: " + responseCode);
+                }
+                
+            } catch (Exception e) {
+                Log.e("ReprintAdapterActivity", "❌ Backend update error: " + e.getMessage(), e);
+            }
+        }).start();
+    }
+
+    /**
+     * Format created_at date to readable format
+     */
+    private String formatCreatedAtDate(String rawDate) {
+        if (rawDate == null || rawDate.isEmpty()) {
+            return "N/A";
+        }
+        
+        Log.d("ReprintAdapterActivity", "📅 Input date: '" + rawDate + "'");
+        
+        try {
+            // Handle different possible input formats from API
+            SimpleDateFormat inputFormat;
+            String cleanedDate = rawDate;
+            
+            if (rawDate.contains("T")) {
+                // ISO format: "2025-06-10T04:31:19.565Z"
+                cleanedDate = rawDate.replace("T", " ").replace("Z", "");
+                // Remove microseconds if present
+                if (cleanedDate.contains(".")) {
+                    cleanedDate = cleanedDate.substring(0, cleanedDate.indexOf("."));
+                }
+                inputFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
+            } else if (rawDate.length() > 19 && rawDate.contains(".")) {
+                // Format with microseconds: "2025-06-10 04:31:19.565"
+                cleanedDate = rawDate.substring(0, 19); // Cut off microseconds
+                inputFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
+            } else {
+                // Standard format: "2025-06-10 04:31:19"
+                inputFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
+            }
+            
+            Log.d("ReprintAdapterActivity", "📅 Cleaned date: '" + cleanedDate + "'");
+            
+            // Output format: d/M/yyyy H:mm:ss
+            SimpleDateFormat outputFormat = new SimpleDateFormat("d/M/yyyy H:mm:ss", Locale.getDefault());
+            
+            Date date = inputFormat.parse(cleanedDate);
+            if (date != null) {
+                String formatted = outputFormat.format(date);
+                Log.d("ReprintAdapterActivity", "📅 Date formatted: " + rawDate + " -> " + formatted);
+                return formatted;
+            }
+        } catch (Exception e) {
+            Log.e("ReprintAdapterActivity", "❌ Date formatting error for: " + rawDate, e);
+        }
+        
+        // Fallback: Manual parsing
+        try {
+            // Handle format like "2025-06-10T04:31:19.565Z" manually
+            String workingDate = rawDate.replace("T", " ").replace("Z", "");
+            
+            // Remove microseconds if present
+            if (workingDate.contains(".")) {
+                workingDate = workingDate.substring(0, workingDate.indexOf("."));
+            }
+            
+            Log.d("ReprintAdapterActivity", "📅 Manual parsing attempt: '" + workingDate + "'");
+            
+            // Split into date and time parts
+            String[] parts = workingDate.split(" ");
+            if (parts.length >= 2) {
+                String datePart = parts[0]; // "2025-06-10"
+                String timePart = parts[1]; // "04:31:19"
+                
+                String[] dateComponents = datePart.split("-");
+                if (dateComponents.length == 3) {
+                    String year = dateComponents[0];
+                    String month = dateComponents[1];
+                    String day = dateComponents[2];
+                    
+                    // Remove leading zeros and format as d/M/yyyy H:mm:ss
+                    int dayInt = Integer.parseInt(day);
+                    int monthInt = Integer.parseInt(month);
+                    
+                    // Parse time to remove leading zeros from hour
+                    String[] timeComponents = timePart.split(":");
+                    if (timeComponents.length >= 3) {
+                        int hour = Integer.parseInt(timeComponents[0]);
+                        String minute = timeComponents[1];
+                        String second = timeComponents[2];
+                        
+                        String result = dayInt + "/" + monthInt + "/" + year + " " + hour + ":" + minute + ":" + second;
+                        Log.d("ReprintAdapterActivity", "📅 Manual format result: " + result);
+                        return result;
+                    }
+                }
+            }
+        } catch (Exception e) {
+            Log.w("ReprintAdapterActivity", "❌ Manual date formatting failed: " + e.getMessage());
+        }
+        
+        Log.w("ReprintAdapterActivity", "📅 Using fallback - returning original date: " + rawDate);
+        return rawDate;
+    }
+
+    private String getPaymentMethodName(String channelCode, String channelCategory) {
+        // Convert channel code to readable payment method name
+        if (channelCode == null) return "Unknown";
+        
+        switch (channelCode.toUpperCase()) {
+            case "QRIS":
+                return "QRIS";
+            case "DEBIT":
+                return "Kartu Debit";
+            case "CREDIT":
+                return "Kartu Kredit";
+            case "BCA":
+                return "BCA";
+            case "MANDIRI":
+                return "Mandiri";
+            case "BNI":
+                return "BNI";
+            case "BRI":
+                return "BRI";
+            case "CASH":
+                return "Tunai";
+            case "EDC":
+                return "EDC";
+            default:
+                // If channel category is available, use it as fallback
+                if (channelCategory != null && !channelCategory.isEmpty()) {
+                    return channelCategory.toUpperCase();
+                }
+                return channelCode.toUpperCase();
+        }
+    }
+
+    @Override
+    public int getItemCount() {
+        return transactionList.size();
+    }
+
+    static class TransactionViewHolder extends RecyclerView.ViewHolder {
+        TextView amount, referenceId, status, paymentMethod, createdAt; // ✅ Added createdAt
+        LinearLayout printSection;
+
+        public TransactionViewHolder(@NonNull View itemView) {
+            super(itemView);
+            amount = itemView.findViewById(R.id.textAmount);
+            referenceId = itemView.findViewById(R.id.textReferenceId);
+            status = itemView.findViewById(R.id.textStatus);
+            paymentMethod = itemView.findViewById(R.id.textPaymentMethod);
+            createdAt = itemView.findViewById(R.id.textCreatedAt); // ✅ Added createdAt
+            printSection = itemView.findViewById(R.id.printSection);
+        }
+    }
+}

app/src/main/java/com/example/bdkipoc/emv/EmvTTS.java

@@ -0,0 +1,145 @@
+package com.example.bdkipoc.emv;
+
+import android.speech.tts.TextToSpeech;
+import android.speech.tts.UtteranceProgressListener;
+import android.util.Log;
+
+import com.example.bdkipoc.MyApplication;
+import com.example.bdkipoc.utils.LogUtil;
+
+import java.util.Locale;
+
+public final class EmvTTS extends UtteranceProgressListener {
+    private static final String TAG = "EmvTTS";
+    private TextToSpeech textToSpeech;
+    private boolean supportTTS;
+    private ITTSProgressListener listener;
+
+    private EmvTTS() {
+
+    }
+
+    public static EmvTTS getInstance() {
+        return SingletonHolder.INSTANCE;
+    }
+
+    public void setTTSListener(ITTSProgressListener l) {
+        listener = l;
+    }
+
+    public void removeTTSListener() {
+        listener = null;
+    }
+
+    private static final class SingletonHolder {
+        private static final EmvTTS INSTANCE = new EmvTTS();
+    }
+
+    public void init() {
+        //初始化TTS对象
+        destroy();
+        textToSpeech = new TextToSpeech(MyApplication.app, this::onTTSInit);
+        textToSpeech.setOnUtteranceProgressListener(this);
+    }
+
+    public void play(String text) {
+        play(text, "0");
+    }
+
+    public void play(String text, String utteranceId) {
+        if (!supportTTS) {
+            Log.e(TAG, "PinPadTTS: play TTS failed, TTS not support...");
+            return;
+        }
+        if (textToSpeech == null) {
+            Log.e(TAG, "PinPadTTS: play TTS slipped, textToSpeech not init..");
+            return;
+        }
+        Log.e(TAG, "play() text: [" + text + "]");
+        textToSpeech.speak(text, TextToSpeech.QUEUE_FLUSH, null, utteranceId);
+    }
+
+    @Override
+    public void onStart(String utteranceId) {
+        Log.e(TAG, "播放开始,utteranceId:" + utteranceId);
+        if (listener != null) {
+            listener.onStart(utteranceId);
+        }
+    }
+
+    @Override
+    public void onDone(String utteranceId) {
+        Log.e(TAG, "播放结束,utteranceId:" + utteranceId);
+        if (listener != null) {
+            listener.onDone(utteranceId);
+        }
+    }
+
+    @Override
+    public void onError(String utteranceId) {
+        Log.e(TAG, "播放出错,utteranceId:" + utteranceId);
+        if (listener != null) {
+            listener.onError(utteranceId);
+        }
+    }
+
+    @Override
+    public void onStop(String utteranceId, boolean interrupted) {
+        Log.e(TAG, "播放停止,utteranceId:" + utteranceId + ",interrupted:" + interrupted);
+        if (listener != null) {
+            listener.onStop(utteranceId, interrupted);
+        }
+    }
+
+    void stop() {
+        if (textToSpeech != null) {
+            int code = textToSpeech.stop();
+            Log.e(TAG, "tts stop() code:" + code);
+        }
+    }
+
+    boolean isSpeaking() {
+        if (textToSpeech != null) {
+            return textToSpeech.isSpeaking();
+        }
+        return false;
+    }
+
+    void destroy() {
+        if (textToSpeech != null) {
+            textToSpeech.stop();
+            textToSpeech.shutdown();
+            textToSpeech = null;
+        }
+    }
+
+    /** TTS初始化回调 */
+    private void onTTSInit(int status) {
+        if (status != TextToSpeech.SUCCESS) {
+            LogUtil.e(TAG, "PinPadTTS: init TTS failed, status:" + status);
+            supportTTS = false;
+            return;
+        }
+        updateTtsLanguage();
+        if (supportTTS) {
+            textToSpeech.setPitch(1.0f);
+            textToSpeech.setSpeechRate(1.0f);
+            LogUtil.e(TAG, "onTTSInit() success,locale:" + textToSpeech.getVoice().getLocale());
+        }
+    }
+
+    /** 更新TTS语言 */
+    private void updateTtsLanguage() {
+        Locale locale = Locale.ENGLISH;
+        int result = textToSpeech.setLanguage(locale);
+        if (result == TextToSpeech.LANG_MISSING_DATA || result == TextToSpeech.LANG_NOT_SUPPORTED) {
+            supportTTS = false; //系统不支持当前Locale对应的语音播报
+            LogUtil.e(TAG, "updateTtsLanguage() failed, TTS not support in locale:" + locale);
+        } else {
+            supportTTS = true;
+            LogUtil.e(TAG, "updateTtsLanguage() success, TTS locale:" + locale);
+        }
+    }
+}
+
+

app/src/main/java/com/example/bdkipoc/emv/ITTSProgressListener.java

@@ -0,0 +1,57 @@
+package com.example.bdkipoc.emv;
+
+import android.speech.tts.TextToSpeech;
+
+public interface ITTSProgressListener {
+
+    /**
+     * Called when an utterance "starts" as perceived by the caller. This will
+     * be soon before audio is played back in the case of a {@link TextToSpeech#speak}
+     * or before the first bytes of a file are written to the file system in the case
+     * of {@link TextToSpeech#synthesizeToFile}.
+     *
+     * @param utteranceId The utterance ID of the utterance.
+     */
+    void onStart(String utteranceId);
+
+    /**
+     * Called when an utterance has successfully completed processing.
+     * All audio will have been played back by this point for audible output, and all
+     * output will have been written to disk for file synthesis requests.
+     * <p>
+     * This request is guaranteed to be called after {@link #onStart(String)}.
+     *
+     * @param utteranceId The utterance ID of the utterance.
+     */
+    void onDone(String utteranceId);
+
+    /**
+     * Called when an error has occurred during processing. This can be called
+     * at any point in the synthesis process. Note that there might be calls
+     * to {@link #onStart(String)} for specified utteranceId but there will never
+     * be a call to both {@link #onDone(String)} and {@link #onError(String)} for
+     * the same utterance.
+     *
+     * @param utteranceId The utterance ID of the utterance.
+     * @deprecated Use {@link #onError(String, int)} instead
+     */
+
+    /**
+     * @deprecated Use {@link #onError(String, int)} instead
+     */
+    @Deprecated
+    void onError(String utteranceId);
+
+    /**
+     * Called when an utterance has been stopped while in progress or flushed from the
+     * synthesis queue. This can happen if a client calls {@link TextToSpeech#stop()}
+     * or uses {@link TextToSpeech#QUEUE_FLUSH} as an argument with the
+     * {@link TextToSpeech#speak} or {@link TextToSpeech#synthesizeToFile} methods.
+     *
+     * @param utteranceId The utterance ID of the utterance.
+     * @param interrupted If true, then the utterance was interrupted while being synthesized
+     *                    and its output is incomplete. If false, then the utterance was flushed
+     *                    before the synthesis started.
+     */
+    void onStop(String utteranceId, boolean interrupted);
+}

app/src/main/java/com/example/bdkipoc/histori/HistoryActivity.java

@@ -0,0 +1,415 @@
+package com.example.bdkipoc;
+
+import android.content.Intent;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.TextView;
+import android.widget.Toast;
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.text.NumberFormat;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.Locale;
+
+public class HistoryActivity extends AppCompatActivity {
+    
+    private TextView tvTotalAmount;
+    private TextView tvTotalTransactions;
+    private TextView btnLihatDetailTop;
+    private Button btnLihatDetailBottom;
+    private RecyclerView recyclerView;
+    private HistoryAdapter adapter;
+    private List<HistoryItem> historyList;
+    private ImageView btnBack;
+    
+    // Store full data for detail view
+    private static List<HistoryItem> fullHistoryData = new ArrayList<>();
+    
+    private String API_URL = "https://be-edc.msvc.app/transactions?page=0&limit=50&sortOrder=DESC&from_date=2025-05-10&to_date=2025-05-21&location_id=0&merchant_id=0&sortColumn=id";
+    
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_history);
+        
+        initViews();
+        setupRecyclerView();
+        fetchApiData();
+        setupClickListeners();
+    }
+    
+    private void initViews() {
+        tvTotalAmount = findViewById(R.id.tv_total_amount);
+        tvTotalTransactions = findViewById(R.id.tv_total_transactions);
+        btnLihatDetailTop = findViewById(R.id.btn_lihat_detail);
+        btnLihatDetailBottom = findViewById(R.id.btn_lihat_detail_bottom);
+        recyclerView = findViewById(R.id.recycler_view);
+        btnBack = findViewById(R.id.btn_back);
+        
+        historyList = new ArrayList<>();
+    }
+    
+    private void setupRecyclerView() {
+        adapter = new HistoryAdapter(historyList);
+        recyclerView.setLayoutManager(new LinearLayoutManager(this));
+        recyclerView.setAdapter(adapter);
+    }
+    
+    private void setupClickListeners() {
+        btnBack.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                finish();
+            }
+        });
+        
+        View.OnClickListener detailClickListener = new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                try {
+                    Intent intent = new Intent(HistoryActivity.this, HistoryDetailActivity.class);
+                    startActivity(intent);
+                } catch (Exception e) {
+                    e.printStackTrace();
+                    Toast.makeText(HistoryActivity.this, "Error opening detail", Toast.LENGTH_SHORT).show();
+                }
+            }
+        };
+        
+        btnLihatDetailTop.setOnClickListener(detailClickListener);
+        btnLihatDetailBottom.setOnClickListener(detailClickListener);
+    }
+    
+    private void fetchApiData() {
+        new ApiTask().execute(API_URL);
+    }
+    
+    private void processApiData(JSONArray dataArray) {
+        try {
+            historyList.clear();
+            fullHistoryData.clear(); // Clear static data
+            
+            final long[] totalAmountArray = {0};
+            final int[] totalTransactionsArray = {0};
+            
+            for (int i = 0; i < dataArray.length(); i++) {
+                JSONObject item = dataArray.getJSONObject(i);
+                
+                String channelCode = item.getString("channel_code");
+                String amount = item.getString("amount");
+                String status = item.getString("status");
+                String transactionDate = item.getString("transaction_date");
+                String referenceId = item.getString("reference_id");
+                
+                // Parse amount safely
+                double amountValue = 0;
+                try {
+                    amountValue = Double.parseDouble(amount);
+                } catch (NumberFormatException e) {
+                    amountValue = 0;
+                }
+                
+                // Create history item
+                HistoryItem historyItem = new HistoryItem();
+                historyItem.setTime(formatTime(transactionDate));
+                historyItem.setDate(formatDate(transactionDate));
+                historyItem.setAmount((long) amountValue);
+                historyItem.setChannelName(formatChannelName(channelCode));
+                historyItem.setStatus(status);
+                historyItem.setReferenceId(referenceId);
+                historyItem.setFullDate(transactionDate);
+                historyItem.setChannelCode(channelCode);
+                
+                // Add to full data
+                fullHistoryData.add(historyItem);
+                
+                // Add first 10 to display list
+                if (i < 10) {
+                    historyList.add(historyItem);
+                }
+                
+                totalAmountArray[0] += (long) amountValue;
+                totalTransactionsArray[0]++;
+            }
+            
+            runOnUiThread(new Runnable() {
+                @Override
+                public void run() {
+                    updateSummary(totalAmountArray[0], totalTransactionsArray[0]);
+                    adapter.notifyDataSetChanged();
+                }
+            });
+            
+        } catch (JSONException e) {
+            e.printStackTrace();
+            runOnUiThread(new Runnable() {
+                @Override
+                public void run() {
+                    Toast.makeText(HistoryActivity.this, "Error parsing data", Toast.LENGTH_SHORT).show();
+                    loadSampleData();
+                }
+            });
+        }
+    }
+    
+    private void updateSummary(long totalAmount, int totalTransactions) {
+        tvTotalAmount.setText("RP " + formatCurrency(totalAmount));
+        tvTotalTransactions.setText(String.valueOf(totalTransactions));
+    }
+    
+    private void loadSampleData() {
+        historyList.clear();
+        fullHistoryData.clear();
+        
+        // Create sample data
+        HistoryItem[] sampleData = {
+            new HistoryItem("03:44", "11-05-2025", 2018619, "Kredit", "FAILED", "197870"),
+            new HistoryItem("03:10", "12-05-2025", 3974866, "QRIS", "SUCCESS", "053059"),
+            new HistoryItem("15:17", "13-05-2025", 2418167, "QRIS", "FAILED", "668320"),
+            new HistoryItem("12:09", "11-05-2025", 3429230, "Debit", "FAILED", "454790"),
+            new HistoryItem("08:39", "10-05-2025", 4656447, "QRIS", "FAILED", "454248"),
+            new HistoryItem("00:35", "12-05-2025", 3507704, "QRIS", "FAILED", "301644"),
+            new HistoryItem("22:43", "13-05-2025", 4277904, "Debit", "SUCCESS", "388709"),
+            new HistoryItem("18:16", "11-05-2025", 4456904, "Debit", "FAILED", "986861")
+        };
+        
+        for (HistoryItem item : sampleData) {
+            historyList.add(item);
+            fullHistoryData.add(item);
+        }
+        
+        tvTotalAmount.setText("RP 36.166.829");
+        tvTotalTransactions.setText("10");
+        
+        adapter.notifyDataSetChanged();
+    }
+    
+    private String formatChannelName(String channelCode) {
+        switch (channelCode) {
+            case "DEBIT":
+                return "Debit";
+            case "QRIS":
+                return "QRIS";
+            case "OTHER":
+                return "Kredit";
+            default:
+                return channelCode.substring(0, 1).toUpperCase() + 
+                       channelCode.substring(1).toLowerCase();
+        }
+    }
+    
+    private String formatTime(String isoDate) {
+        try {
+            SimpleDateFormat inputFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.getDefault());
+            SimpleDateFormat outputFormat = new SimpleDateFormat("HH:mm", Locale.getDefault());
+            Date date = inputFormat.parse(isoDate);
+            return outputFormat.format(date);
+        } catch (ParseException e) {
+            return "00:00";
+        }
+    }
+    
+    private String formatDate(String isoDate) {
+        try {
+            SimpleDateFormat inputFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.getDefault());
+            SimpleDateFormat outputFormat = new SimpleDateFormat("dd-MM-yyyy", Locale.getDefault());
+            Date date = inputFormat.parse(isoDate);
+            return outputFormat.format(date);
+        } catch (ParseException e) {
+            return "01-01-2025";
+        }
+    }
+    
+    private String formatCurrency(long amount) {
+        NumberFormat formatter = NumberFormat.getNumberInstance(new Locale("id", "ID"));
+        return formatter.format(amount);
+    }
+    
+    // Public static method to get full data for detail activity
+    public static List<HistoryItem> getFullHistoryData() {
+        return new ArrayList<>(fullHistoryData);
+    }
+    
+    // AsyncTask for API call
+    private class ApiTask extends AsyncTask<String, Void, String> {
+        @Override
+        protected String doInBackground(String... urls) {
+            try {
+                URL url = new URL(urls[0]);
+                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+                connection.setRequestMethod("GET");
+                connection.setConnectTimeout(10000);
+                connection.setReadTimeout(10000);
+                
+                int responseCode = connection.getResponseCode();
+                if (responseCode == HttpURLConnection.HTTP_OK) {
+                    BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
+                    StringBuilder response = new StringBuilder();
+                    String line;
+                    
+                    while ((line = reader.readLine()) != null) {
+                        response.append(line);
+                    }
+                    reader.close();
+                    return response.toString();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            return null;
+        }
+        
+        @Override
+        protected void onPostExecute(String result) {
+            if (result != null) {
+                try {
+                    JSONObject jsonResponse = new JSONObject(result);
+                    if (jsonResponse.getInt("status") == 200) {
+                        JSONObject results = jsonResponse.getJSONObject("results");
+                        JSONArray dataArray = results.getJSONArray("data");
+                        processApiData(dataArray);
+                    } else {
+                        Toast.makeText(HistoryActivity.this, "API Error", Toast.LENGTH_SHORT).show();
+                        loadSampleData();
+                    }
+                } catch (JSONException e) {
+                    e.printStackTrace();
+                    Toast.makeText(HistoryActivity.this, "JSON Parse Error", Toast.LENGTH_SHORT).show();
+                    loadSampleData();
+                }
+            } else {
+                Toast.makeText(HistoryActivity.this, "Network Error", Toast.LENGTH_SHORT).show();
+                loadSampleData();
+            }
+        }
+    }
+}
+
+// HistoryItem class - enhanced with more fields
+class HistoryItem {
+    private String time;
+    private String date;
+    private long amount;
+    private String channelName;
+    private String status;
+    private String referenceId;
+    private String fullDate;
+    private String channelCode;
+    
+    public HistoryItem() {}
+    
+    public HistoryItem(String time, String date, long amount, String channelName, String status, String referenceId) {
+        this.time = time;
+        this.date = date;
+        this.amount = amount;
+        this.channelName = channelName;
+        this.status = status;
+        this.referenceId = referenceId;
+    }
+    
+    // Getters and Setters
+    public String getTime() { return time; }
+    public void setTime(String time) { this.time = time; }
+    public String getDate() { return date; }
+    public void setDate(String date) { this.date = date; }
+    public long getAmount() { return amount; }
+    public void setAmount(long amount) { this.amount = amount; }
+    public String getChannelName() { return channelName; }
+    public void setChannelName(String channelName) { this.channelName = channelName; }
+    public String getStatus() { return status; }
+    public void setStatus(String status) { this.status = status; }
+    public String getReferenceId() { return referenceId; }
+    public void setReferenceId(String referenceId) { this.referenceId = referenceId; }
+    public String getFullDate() { return fullDate; }
+    public void setFullDate(String fullDate) { this.fullDate = fullDate; }
+    public String getChannelCode() { return channelCode; }
+    public void setChannelCode(String channelCode) { this.channelCode = channelCode; }
+}
+
+// HistoryAdapter class - simplified and stable
+class HistoryAdapter extends RecyclerView.Adapter<HistoryAdapter.HistoryViewHolder> {
+    
+    private List<HistoryItem> historyList;
+    
+    public HistoryAdapter(List<HistoryItem> historyList) {
+        this.historyList = historyList;
+    }
+    
+    @NonNull
+    @Override
+    public HistoryViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(parent.getContext())
+                .inflate(R.layout.item_history, parent, false);
+        return new HistoryViewHolder(view);
+    }
+    
+    @Override
+    public void onBindViewHolder(@NonNull HistoryViewHolder holder, int position) {
+        HistoryItem item = historyList.get(position);
+        
+        holder.tvTime.setText(item.getTime() + ", " + item.getDate());
+        holder.tvAmount.setText("Rp. " + formatCurrency(item.getAmount()));
+        holder.tvChannel.setText(item.getChannelName());
+        
+        // Set status color
+        String status = item.getStatus();
+        if ("SUCCESS".equals(status)) {
+            holder.tvStatus.setText("Berhasil");
+            holder.tvStatus.setTextColor(0xFF4CAF50); // Green
+        } else if ("FAILED".equals(status)) {
+            holder.tvStatus.setText("Gagal");
+            holder.tvStatus.setTextColor(0xFFF44336); // Red
+        } else {
+            holder.tvStatus.setText("Tertunda");
+            holder.tvStatus.setTextColor(0xFFFF9800); // Orange
+        }
+    }
+    
+    @Override
+    public int getItemCount() {
+        return historyList != null ? historyList.size() : 0;
+    }
+    
+    private String formatCurrency(long amount) {
+        try {
+            NumberFormat formatter = NumberFormat.getNumberInstance(new Locale("id", "ID"));
+            return formatter.format(amount);
+        } catch (Exception e) {
+            return String.valueOf(amount);
+        }
+    }
+    
+    static class HistoryViewHolder extends RecyclerView.ViewHolder {
+        TextView tvTime;
+        TextView tvAmount;
+        TextView tvChannel;
+        TextView tvStatus;
+        
+        public HistoryViewHolder(@NonNull View itemView) {
+            super(itemView);
+            tvTime = itemView.findViewById(R.id.tv_time);
+            tvAmount = itemView.findViewById(R.id.tv_amount);
+            tvChannel = itemView.findViewById(R.id.tv_channel);
+            tvStatus = itemView.findViewById(R.id.tv_status);
+        }
+    }
+}

app/src/main/java/com/example/bdkipoc/histori/HistoryDetailActivity.java

@@ -0,0 +1,204 @@
+package com.example.bdkipoc;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import java.text.NumberFormat;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.Locale;
+
+public class HistoryDetailActivity extends AppCompatActivity {
+    
+    private RecyclerView recyclerView;
+    private HistoryDetailAdapter adapter;
+    private List<HistoryItem> detailList;
+    private ImageView btnBack;
+    
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_history_detail);
+        
+        initViews();
+        setupRecyclerView();
+        loadData();
+        setupClickListeners();
+    }
+    
+    private void initViews() {
+        recyclerView = findViewById(R.id.recycler_view);
+        btnBack = findViewById(R.id.btn_back);
+        detailList = new ArrayList<>();
+    }
+    
+    private void setupRecyclerView() {
+        adapter = new HistoryDetailAdapter(detailList);
+        recyclerView.setLayoutManager(new LinearLayoutManager(this));
+        recyclerView.setAdapter(adapter);
+    }
+    
+    private void setupClickListeners() {
+        btnBack.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                finish();
+            }
+        });
+    }
+    
+    private void loadData() {
+        try {
+            // Get data from HistoryActivity
+            List<HistoryItem> fullData = HistoryActivity.getFullHistoryData();
+            
+            if (fullData != null && !fullData.isEmpty()) {
+                detailList.clear();
+                detailList.addAll(fullData);
+                adapter.notifyDataSetChanged();
+            } else {
+                loadSampleDetailData();
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+            loadSampleDetailData();
+        }
+    }
+    
+    private void loadSampleDetailData() {
+        detailList.clear();
+        
+        // Create sample detail data
+        HistoryItem[] sampleData = {
+            new HistoryItem("03:44", "11-05-2025", 2018619, "Kredit", "FAILED", "197870"),
+            new HistoryItem("03:10", "12-05-2025", 3974866, "QRIS", "SUCCESS", "053059"),
+            new HistoryItem("15:17", "13-05-2025", 2418167, "QRIS", "FAILED", "668320"),
+            new HistoryItem("12:09", "11-05-2025", 3429230, "Debit", "FAILED", "454790"),
+            new HistoryItem("08:39", "10-05-2025", 4656447, "QRIS", "FAILED", "454248"),
+            new HistoryItem("00:35", "12-05-2025", 3507704, "QRIS", "FAILED", "301644"),
+            new HistoryItem("22:43", "13-05-2025", 4277904, "Debit", "SUCCESS", "388709"),
+            new HistoryItem("18:16", "11-05-2025", 4456904, "Debit", "FAILED", "986861"),
+            new HistoryItem("12:51", "10-05-2025", 3027953, "Kredit", "SUCCESS", "771339"),
+            new HistoryItem("19:50", "14-05-2025", 4399035, "QRIS", "FAILED", "103478")
+        };
+        
+        for (HistoryItem item : sampleData) {
+            detailList.add(item);
+        }
+        
+        adapter.notifyDataSetChanged();
+    }
+}
+
+// HistoryDetailAdapter class - simplified for stability
+class HistoryDetailAdapter extends RecyclerView.Adapter<HistoryDetailAdapter.DetailViewHolder> {
+    
+    private List<HistoryItem> detailList;
+    
+    public HistoryDetailAdapter(List<HistoryItem> detailList) {
+        this.detailList = detailList;
+    }
+    
+    @NonNull
+    @Override
+    public DetailViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(parent.getContext())
+                .inflate(R.layout.item_history_detail, parent, false);
+        return new DetailViewHolder(view);
+    }
+    
+    @Override
+    public void onBindViewHolder(@NonNull DetailViewHolder holder, int position) {
+        HistoryItem item = detailList.get(position);
+        
+        try {
+            holder.tvReferenceId.setText("Ref: " + item.getReferenceId());
+            holder.tvAmount.setText("Rp. " + formatCurrency(item.getAmount()));
+            holder.tvChannel.setText(item.getChannelName());
+            holder.tvMerchant.setText("TEST MERCHANT");
+            holder.tvTime.setText(formatDateTime(item.getTime(), item.getDate()));
+            holder.tvIssuer.setText("BANK MANDIRI");
+            
+            // Set status color
+            String status = item.getStatus();
+            if ("SUCCESS".equals(status)) {
+                holder.tvStatus.setText("Berhasil");
+                holder.tvStatus.setTextColor(0xFF4CAF50); // Green
+            } else if ("FAILED".equals(status)) {
+                holder.tvStatus.setText("Gagal");
+                holder.tvStatus.setTextColor(0xFFF44336); // Red
+            } else {
+                holder.tvStatus.setText("Tertunda");
+                holder.tvStatus.setTextColor(0xFFFF9800); // Orange
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+            // Set default values if error occurs
+            holder.tvReferenceId.setText("Ref: " + position);
+            holder.tvAmount.setText("Rp. 0");
+            holder.tvChannel.setText("Unknown");
+            holder.tvMerchant.setText("TEST MERCHANT");
+            holder.tvTime.setText("00:00, 01-01-2025");
+            holder.tvIssuer.setText("UNKNOWN");
+            holder.tvStatus.setText("Tidak Diketahui");
+            holder.tvStatus.setTextColor(0xFF666666);
+        }
+    }
+    
+    @Override
+    public int getItemCount() {
+        return detailList != null ? detailList.size() : 0;
+    }
+    
+    private String formatCurrency(long amount) {
+        try {
+            NumberFormat formatter = NumberFormat.getNumberInstance(new Locale("id", "ID"));
+            return formatter.format(amount);
+        } catch (Exception e) {
+            return String.valueOf(amount);
+        }
+    }
+    
+    private String formatDateTime(String time, String date) {
+        try {
+            return time + ", " + date;
+        } catch (Exception e) {
+            return "00:00, 01-01-2025";
+        }
+    }
+    
+    static class DetailViewHolder extends RecyclerView.ViewHolder {
+        TextView tvReferenceId;
+        TextView tvAmount;
+        TextView tvChannel;
+        TextView tvMerchant;
+        TextView tvTime;
+        TextView tvIssuer;
+        TextView tvStatus;
+        
+        public DetailViewHolder(@NonNull View itemView) {
+            super(itemView);
+            try {
+                tvReferenceId = itemView.findViewById(R.id.tv_reference_id);
+                tvAmount = itemView.findViewById(R.id.tv_amount);
+                tvChannel = itemView.findViewById(R.id.tv_channel);
+                tvMerchant = itemView.findViewById(R.id.tv_merchant);
+                tvTime = itemView.findViewById(R.id.tv_time);
+                tvIssuer = itemView.findViewById(R.id.tv_issuer);
+                tvStatus = itemView.findViewById(R.id.tv_status);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+    }
+}

app/src/main/java/com/example/bdkipoc/qris/QrisActivity.java

@@ -0,0 +1,894 @@
+package com.example.bdkipoc;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.graphics.Bitmap;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.net.HttpURLConnection;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.util.Random;
+import java.util.UUID;
+
+public class QrisActivity extends AppCompatActivity {
+
+    private ProgressBar progressBar;
+    private Button initiatePaymentButton;
+    private TextView statusTextView;
+    private EditText editTextAmount;
+    private TextView referenceIdTextView;
+    private LinearLayout backNavigation;
+    
+    // Numpad buttons
+    private TextView btn1, btn2, btn3, btn4, btn5, btn6, btn7, btn8, btn9, btn0, btn000, btnDelete;
+    private TextView descriptionText;
+
+    private String transactionId;
+    private String transactionUuid;
+    private String referenceId;
+    private int amount;
+    private JSONObject midtransResponse;
+    
+    private StringBuilder currentAmount = new StringBuilder();
+
+    // ✅ FRONTEND DEDUPLICATION: Add SharedPreferences for tracking
+    private SharedPreferences transactionPrefs;
+    private static final String PREF_RECENT_REFERENCES = "recent_references";
+    private static final String PREF_LAST_TRANSACTION_TIME = "last_transaction_time";
+    private static final String PREF_CURRENT_REFERENCE = "current_reference";
+    private static final String PREF_LAST_SUCCESSFUL_TX = "last_successful_tx";
+    private static final long REFERENCE_COOLDOWN_MS = 60000; // 1 minute cooldown
+    private static final long TRANSACTION_COOLDOWN_MS = 5000; // 5 second cooldown
+
+    private static final String BACKEND_BASE = "https://be-edc.msvc.app";
+    private static final String MIDTRANS_CHARGE_URL = "https://api.sandbox.midtrans.com/v2/charge";
+    private static final String MIDTRANS_AUTH = "Basic U0ItTWlkLXNlcnZlci1PM2t1bXkwVDl4M1VvYnVvVTc3NW5QbXc=";
+    private static final String WEBHOOK_URL = "https://be-edc.msvc.app/webhooks/midtrans";
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_qris);
+
+        // ✅ Initialize SharedPreferences for duplicate prevention
+        transactionPrefs = getSharedPreferences("qris_transactions", MODE_PRIVATE);
+
+        // Initialize views
+        progressBar = findViewById(R.id.progressBar);
+        initiatePaymentButton = findViewById(R.id.initiatePaymentButton);
+        statusTextView = findViewById(R.id.statusTextView);
+        editTextAmount = findViewById(R.id.editTextAmount);
+        referenceIdTextView = findViewById(R.id.referenceIdTextView);
+        backNavigation = findViewById(R.id.back_navigation);
+        descriptionText = findViewById(R.id.descriptionText);
+
+        // Initialize numpad buttons
+        btn1 = findViewById(R.id.btn1);
+        btn2 = findViewById(R.id.btn2);
+        btn3 = findViewById(R.id.btn3);
+        btn4 = findViewById(R.id.btn4);
+        btn5 = findViewById(R.id.btn5);
+        btn6 = findViewById(R.id.btn6);
+        btn7 = findViewById(R.id.btn7);
+        btn8 = findViewById(R.id.btn8);
+        btn9 = findViewById(R.id.btn9);
+        btn0 = findViewById(R.id.btn0);
+        btn000 = findViewById(R.id.btn000);
+        btnDelete = findViewById(R.id.btnDelete);
+        
+        // ✅ Generate unique reference ID with duplicate prevention
+        referenceId = generateUniqueReferenceId();
+        referenceIdTextView.setText(referenceId);
+
+        // Set up click listeners
+        initiatePaymentButton.setOnClickListener(v -> createTransaction());
+        backNavigation.setOnClickListener(v -> finish());
+        
+        // Set up numpad listeners
+        setupNumpadListeners();
+        
+        // Initially disable the button
+        initiatePaymentButton.setEnabled(false);
+    }
+
+    /**
+     * ✅ FRONTEND DEDUPLICATION: Generate unique reference ID with local tracking
+     */
+    private String generateUniqueReferenceId() {
+        Log.d("QrisActivity", "🔄 Generating unique reference ID...");
+        
+        String baseRef = "ref-" + generateRandomString(8);
+        
+        // Check if this reference was recently created
+        String recentRefs = transactionPrefs.getString(PREF_RECENT_REFERENCES, "");
+        long currentTime = System.currentTimeMillis();
+        
+        // Clean up old references (older than cooldown period)
+        StringBuilder validRefs = new StringBuilder();
+        if (!recentRefs.isEmpty()) {
+            String[] refs = recentRefs.split(",");
+            
+            for (String refEntry : refs) {
+                if (refEntry.contains(":")) {
+                    String[] parts = refEntry.split(":");
+                    if (parts.length == 2) {
+                        try {
+                            long timestamp = Long.parseLong(parts[1]);
+                            if (currentTime - timestamp < REFERENCE_COOLDOWN_MS) {
+                                // Reference is still in cooldown period
+                                if (validRefs.length() > 0) validRefs.append(",");
+                                validRefs.append(refEntry);
+                            }
+                        } catch (NumberFormatException e) {
+                            // Skip invalid entries
+                            Log.w("QrisActivity", "Invalid reference entry: " + refEntry);
+                        }
+                    }
+                }
+            }
+        }
+        
+        // Check if baseRef already exists in recent references
+        if (validRefs.length() > 0) {
+            String[] validRefArray = validRefs.toString().split(",");
+            for (String refEntry : validRefArray) {
+                if (refEntry.startsWith(baseRef + ":")) {
+                    // Reference already exists, generate a new one
+                    Log.w("QrisActivity", "⚠️ Reference " + baseRef + " recently used, generating new one");
+                    return generateUniqueReferenceId(); // Recursive call with new random string
+                }
+            }
+        }
+        
+        // Add this reference to recent references
+        if (validRefs.length() > 0) validRefs.append(",");
+        validRefs.append(baseRef).append(":").append(currentTime);
+        
+        // Save updated references
+        transactionPrefs.edit()
+            .putString(PREF_RECENT_REFERENCES, validRefs.toString())
+            .apply();
+        
+        Log.d("QrisActivity", "✅ Generated unique reference: " + baseRef);
+        return baseRef;
+    }
+
+    /**
+     * ✅ FRONTEND DEDUPLICATION: Check if transaction is currently being processed
+     */
+    private boolean isTransactionInProgress() {
+        long lastTransactionTime = transactionPrefs.getLong(PREF_LAST_TRANSACTION_TIME, 0);
+        long currentTime = System.currentTimeMillis();
+        
+        // If last transaction was less than cooldown period, consider it in progress
+        boolean inProgress = (currentTime - lastTransactionTime) < TRANSACTION_COOLDOWN_MS;
+        
+        if (inProgress) {
+            Log.w("QrisActivity", "⏸️ Transaction in progress, cooldown active");
+        }
+        
+        return inProgress;
+    }
+
+    /**
+     * ✅ FRONTEND DEDUPLICATION: Mark transaction processing status
+     */
+    private void markTransactionInProgress(boolean inProgress) {
+        SharedPreferences.Editor editor = transactionPrefs.edit();
+        
+        if (inProgress) {
+            editor.putLong(PREF_LAST_TRANSACTION_TIME, System.currentTimeMillis())
+                  .putString(PREF_CURRENT_REFERENCE, referenceId);
+            Log.d("QrisActivity", "🔒 Marked transaction in progress: " + referenceId);
+        } else {
+            editor.remove(PREF_CURRENT_REFERENCE);
+            Log.d("QrisActivity", "🔓 Cleared transaction progress status");
+        }
+        
+        editor.apply();
+    }
+
+    /**
+     * ✅ FRONTEND DEDUPLICATION: Save successful transaction for future reference
+     */
+    private void saveSuccessfulTransaction() {
+        try {
+            JSONObject txData = new JSONObject();
+            txData.put("reference_id", referenceId);
+            txData.put("transaction_uuid", transactionUuid);
+            txData.put("amount", amount);
+            txData.put("created_at", System.currentTimeMillis());
+            
+            // Save to SharedPreferences
+            transactionPrefs.edit()
+                .putString(PREF_LAST_SUCCESSFUL_TX, txData.toString())
+                .putLong("last_success_time", System.currentTimeMillis())
+                .apply();
+                
+            Log.d("QrisActivity", "💾 Saved successful transaction: " + referenceId);
+        } catch (Exception e) {
+            Log.w("QrisActivity", "Failed to save transaction data: " + e.getMessage());
+        }
+    }
+
+    /**
+     * ✅ FRONTEND DEDUPLICATION: Create client info for better backend tracking
+     */
+    private JSONObject createClientInfo() {
+        try {
+            JSONObject clientInfo = new JSONObject();
+            clientInfo.put("app_version", "1.0.0");
+            clientInfo.put("platform", "android");
+            clientInfo.put("timestamp", System.currentTimeMillis());
+            clientInfo.put("session_id", generateRandomString(16));
+            clientInfo.put("reference_generation_time", System.currentTimeMillis());
+            return clientInfo;
+        } catch (JSONException e) {
+            Log.w("QrisActivity", "Failed to create client info: " + e.getMessage());
+            return new JSONObject();
+        }
+    }
+    
+    private void setupNumpadListeners() {
+        View.OnClickListener numberClickListener = v -> {
+            TextView button = (TextView) v;
+            String number = button.getText().toString();
+            appendNumber(number);
+        };
+
+        btn1.setOnClickListener(numberClickListener);
+        btn2.setOnClickListener(numberClickListener);
+        btn3.setOnClickListener(numberClickListener);
+        btn4.setOnClickListener(numberClickListener);
+        btn5.setOnClickListener(numberClickListener);
+        btn6.setOnClickListener(numberClickListener);
+        btn7.setOnClickListener(numberClickListener);
+        btn8.setOnClickListener(numberClickListener);
+        btn9.setOnClickListener(numberClickListener);
+        btn0.setOnClickListener(numberClickListener);
+        btn000.setOnClickListener(numberClickListener);
+        
+        btnDelete.setOnClickListener(v -> deleteLastDigit());
+    }
+    
+    private void appendNumber(String number) {
+        currentAmount.append(number);
+        updateAmountDisplay();
+    }
+    
+    private void deleteLastDigit() {
+        if (currentAmount.length() > 0) {
+            currentAmount.deleteCharAt(currentAmount.length() - 1);
+            updateAmountDisplay();
+        }
+    }
+    
+    private void updateAmountDisplay() {
+        String amountStr = currentAmount.toString();
+        
+        if (amountStr.isEmpty()) {
+            editTextAmount.setVisibility(View.GONE);
+            descriptionText.setText("Pastikan kembali nominal pembayaran pelanggan Anda");
+            initiatePaymentButton.setEnabled(false);
+        } else {
+            editTextAmount.setVisibility(View.VISIBLE);
+            editTextAmount.setText(formatAmount(amountStr));
+            descriptionText.setText("Tekan Konfirmasi untuk melanjutkan");
+            
+            // Enable button if amount is valid
+            try {
+                int amt = Integer.parseInt(amountStr);
+                initiatePaymentButton.setEnabled(amt >= 1000);
+            } catch (NumberFormatException e) {
+                initiatePaymentButton.setEnabled(false);
+            }
+        }
+    }
+    
+    private String formatAmount(String amount) {
+        if (amount.isEmpty()) return "";
+        
+        try {
+            long num = Long.parseLong(amount);
+            return String.format("%,d", num);
+        } catch (NumberFormatException e) {
+            return amount;
+        }
+    }
+
+    /**
+     * ✅ ENHANCED: Modified createTransaction with comprehensive duplicate prevention
+     */
+    private void createTransaction() {
+        if (currentAmount.length() == 0) {
+            Toast.makeText(this, "Masukkan jumlah pembayaran", Toast.LENGTH_SHORT).show();
+            return;
+        }
+        
+        // ✅ FRONTEND CHECK: Prevent rapid duplicate submissions
+        if (isTransactionInProgress()) {
+            Toast.makeText(this, "Transaksi sedang diproses, harap tunggu...", Toast.LENGTH_SHORT).show();
+            return;
+        }
+        
+        Log.d("QrisActivity", "🚀 Starting transaction creation process");
+        Log.d("QrisActivity", "   Reference ID: " + referenceId);
+        Log.d("QrisActivity", "   Amount: " + currentAmount.toString());
+        
+        progressBar.setVisibility(View.VISIBLE);
+        initiatePaymentButton.setEnabled(false);
+        statusTextView.setVisibility(View.VISIBLE);
+        statusTextView.setText("Creating transaction...");
+        
+        // Mark transaction as in progress
+        markTransactionInProgress(true);
+        
+        new CreateTransactionTask().execute();
+    }
+
+    private String generateRandomString(int length) {
+        String chars = "abcdefghijklmnopqrstuvwxyz0123456789";
+        StringBuilder sb = new StringBuilder();
+        Random random = new Random();
+        for (int i = 0; i < length; i++) {
+            int index = random.nextInt(chars.length());
+            sb.append(chars.charAt(index));
+        }
+        return sb.toString();
+    }
+
+    private String getServerKey() {
+        try {
+            // MIDTRANS_AUTH = 'Basic base64string'
+            String base64 = MIDTRANS_AUTH.replace("Basic ", "");
+            byte[] decoded = android.util.Base64.decode(base64, android.util.Base64.DEFAULT);
+            String decodedString = new String(decoded);
+            // Format is usually 'SB-Mid-server-xxxx:'. Remove trailing colon if present.
+            return decodedString.replace(":", "");
+        } catch (Exception e) {
+            Log.e("MidtransCharge", "Error decoding server key: " + e.getMessage());
+            return "";
+        }
+    }
+
+    private boolean isValidServerKey(String serverKey) {
+        return serverKey != null && 
+               serverKey.startsWith("SB-Mid-server-") && 
+               serverKey.length() > 20;
+    }
+
+    private String generateSignature(String orderId, String statusCode, String grossAmount, String serverKey) {
+        String input = orderId + statusCode + grossAmount + serverKey;
+        try {
+            java.security.MessageDigest md = java.security.MessageDigest.getInstance("SHA-512");
+            byte[] messageDigest = md.digest(input.getBytes());
+            StringBuilder hexString = new StringBuilder();
+            for (byte b : messageDigest) {
+                String hex = Integer.toHexString(0xff & b);
+                if (hex.length() == 1) hexString.append('0');
+                hexString.append(hex);
+            }
+            return hexString.toString();
+        } catch (java.security.NoSuchAlgorithmException e) {
+            Log.e("MidtransCharge", "Error generating signature: " + e.getMessage());
+            return "";
+        }
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (item.getItemId() == android.R.id.home) {
+            finish();
+            return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+    
+    private class CreateTransactionTask extends AsyncTask<Void, Void, Boolean> {
+        private String errorMessage;
+        
+        @Override
+        protected Boolean doInBackground(Void... voids) {
+            try {
+                // Generate a UUID for the transaction
+                transactionUuid = UUID.randomUUID().toString();
+                
+                // ✅ ENHANCED LOGGING: Better tracking for debugging
+                Log.d("MidtransCharge", "=== TRANSACTION CREATION START ===");
+                Log.d("MidtransCharge", "Reference ID: " + referenceId);
+                Log.d("MidtransCharge", "Transaction UUID: " + transactionUuid);
+                Log.d("MidtransCharge", "Timestamp: " + System.currentTimeMillis());
+                
+                // Create transaction JSON payload
+                JSONObject payload = new JSONObject();
+                payload.put("type", "PAYMENT");
+                payload.put("channel_category", "RETAIL_OUTLET");
+                payload.put("channel_code", "QRIS");
+                payload.put("reference_id", referenceId);
+                
+                // ✅ FRONTEND ENHANCEMENT: Add client-side metadata for better tracking
+                payload.put("client_info", createClientInfo());
+                payload.put("is_initial_creation", true); // Mark as initial creation
+                
+                // Get amount from current input
+                String amountText = currentAmount.toString();
+                Log.d("MidtransCharge", "Raw amount text: " + amountText);
+                
+                try {
+                    // Parse amount - expecting integer in lowest denomination (Indonesian Rupiah)
+                    amount = Integer.parseInt(amountText);
+                    
+                    // Validate minimum amount
+                    if (amount < 1000) {
+                        errorMessage = "Minimum amount is IDR 1,000";
+                        return false;
+                    }
+                    
+                    // Validate maximum amount for testing
+                    if (amount > 10000000) {
+                        errorMessage = "Maximum amount is IDR 10,000,000";
+                        return false;
+                    }
+                    
+                    Log.d("MidtransCharge", "Parsed amount: " + amount);
+                } catch (NumberFormatException e) {
+                    Log.e("MidtransCharge", "Amount parsing error: " + e.getMessage());
+                    errorMessage = "Invalid amount format. Please enter numbers only.";
+                    return false;
+                }
+                
+                payload.put("amount", amount);
+                payload.put("cashflow", "MONEY_IN");
+                payload.put("status", "INIT");
+                payload.put("device_id", 1);
+                payload.put("transaction_uuid", transactionUuid);
+                payload.put("transaction_time_seconds", 0.0);
+                payload.put("device_code", "PB4K252T00021");
+                payload.put("merchant_name", "Marcel Panjaitan");
+                payload.put("mid", "71000026521");
+                payload.put("tid", "73001500");
+                
+                Log.d("MidtransCharge", "Backend transaction payload: " + payload.toString());
+                
+                // Make the API call
+                URL url = new URI(BACKEND_BASE + "/transactions").toURL();
+                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+                conn.setRequestMethod("POST");
+                conn.setRequestProperty("Content-Type", "application/json");
+                conn.setRequestProperty("Accept", "application/json");
+                conn.setRequestProperty("User-Agent", "BDKIPOCApp/1.0");
+                
+                // ✅ FRONTEND ENHANCEMENT: Add client headers for better backend tracking
+                conn.setRequestProperty("X-Client-Reference", referenceId);
+                conn.setRequestProperty("X-Client-Timestamp", String.valueOf(System.currentTimeMillis()));
+                conn.setRequestProperty("X-Client-Version", "1.0.0");
+                
+                conn.setDoOutput(true);
+                
+                try (OutputStream os = conn.getOutputStream()) {
+                    byte[] input = payload.toString().getBytes("utf-8");
+                    os.write(input, 0, input.length);
+                }
+                
+                int responseCode = conn.getResponseCode();
+                Log.d("MidtransCharge", "Backend response code: " + responseCode);
+                
+                if (responseCode == 200 || responseCode == 201) {
+                    // Success - process response
+                    BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));
+                    StringBuilder response = new StringBuilder();
+                    String responseLine;
+                    while ((responseLine = br.readLine()) != null) {
+                        response.append(responseLine.trim());
+                    }
+                    
+                    Log.d("MidtransCharge", "Backend success response: " + response.toString());
+                    
+                    // Parse the response to get transaction ID
+                    JSONObject jsonResponse = new JSONObject(response.toString());
+                    JSONObject data = jsonResponse.getJSONObject("data");
+                    transactionId = String.valueOf(data.getInt("id"));
+                    
+                    Log.d("MidtransCharge", "✅ Created transaction ID: " + transactionId);
+                    
+                    // ✅ FRONTEND SUCCESS: Save successful transaction info
+                    saveSuccessfulTransaction();
+                    
+                    // Now generate QRIS via Midtrans
+                    return generateQris(amount);
+                    
+                } else if (responseCode == 409 || responseCode == 400) {
+                    // ✅ ENHANCED DUPLICATE HANDLING: Handle gracefully
+                    Log.w("MidtransCharge", "⚠️ Potential duplicate detected (HTTP " + responseCode + ")");
+                    
+                    // Try to read and parse error response
+                    try {
+                        BufferedReader br = new BufferedReader(new InputStreamReader(conn.getErrorStream(), "utf-8"));
+                        StringBuilder errorResponse = new StringBuilder();
+                        String responseLine;
+                        while ((responseLine = br.readLine()) != null) {
+                            errorResponse.append(responseLine.trim());
+                        }
+                        
+                        String errorResponseStr = errorResponse.toString();
+                        Log.d("MidtransCharge", "Error response: " + errorResponseStr);
+                        
+                        // Check if it's actually a duplicate reference error
+                        if (errorResponseStr.toLowerCase().contains("duplicate") || 
+                            errorResponseStr.toLowerCase().contains("already exists") ||
+                            errorResponseStr.toLowerCase().contains("reference") ||
+                            responseCode == 409) {
+                            
+                            Log.i("MidtransCharge", "✅ Confirmed duplicate reference - proceeding with QRIS generation");
+                            
+                            // For duplicates, we can still generate QRIS with existing reference
+                            return generateQris(amount);
+                        }
+                    } catch (Exception e) {
+                        Log.w("MidtransCharge", "Could not parse error response: " + e.getMessage());
+                    }
+                    
+                    // If we can't determine the exact error, try QRIS generation anyway
+                    Log.i("MidtransCharge", "🔄 Proceeding with QRIS generation despite backend error");
+                    return generateQris(amount);
+                    
+                } else {
+                    // Other HTTP errors
+                    BufferedReader br = new BufferedReader(new InputStreamReader(conn.getErrorStream(), "utf-8"));
+                    StringBuilder response = new StringBuilder();
+                    String responseLine;
+                    while ((responseLine = br.readLine()) != null) {
+                        response.append(responseLine.trim());
+                    }
+                    
+                    String errorResponse = response.toString();
+                    Log.e("MidtransCharge", "❌ Backend error (HTTP " + responseCode + "): " + errorResponse);
+                    errorMessage = "Backend error (" + responseCode + "): " + errorResponse;
+                    return false;
+                }
+            } catch (Exception e) {
+                Log.e("MidtransCharge", "❌ Backend transaction exception: " + e.getMessage(), e);
+                errorMessage = "Network error: " + e.getMessage();
+                return false;
+            }
+        }
+        
+        private boolean generateQris(int amount) {
+            try {
+                // Validate server key first
+                String serverKey = getServerKey();
+                if (!isValidServerKey(serverKey)) {
+                    Log.e("MidtransCharge", "Invalid server key format");
+                    errorMessage = "Invalid server key configuration";
+                    return false;
+                }
+                
+                Log.d("MidtransCharge", "Using server key: " + serverKey.substring(0, Math.min(20, serverKey.length())) + "...");
+                
+                // Create QRIS charge JSON payload
+                JSONObject payload = new JSONObject();
+                payload.put("payment_type", "qris");
+                
+                JSONObject transactionDetails = new JSONObject();
+                transactionDetails.put("order_id", transactionUuid);
+                transactionDetails.put("gross_amount", amount);
+                payload.put("transaction_details", transactionDetails);
+                
+                // Add customer details (recommended for better success rate)
+                JSONObject customerDetails = new JSONObject();
+                customerDetails.put("first_name", "Test");
+                customerDetails.put("last_name", "Customer");
+                customerDetails.put("email", "test@example.com");
+                customerDetails.put("phone", "081234567890");
+                payload.put("customer_details", customerDetails);
+                
+                // Add item details (optional but recommended)
+                JSONArray itemDetails = new JSONArray();
+                JSONObject item = new JSONObject();
+                item.put("id", "item1");
+                item.put("price", amount);
+                item.put("quantity", 1);
+                item.put("name", "QRIS Payment - " + referenceId);
+                itemDetails.put(item);
+                payload.put("item_details", itemDetails);
+                
+                // ✅ FRONTEND ENHANCEMENT: Add tracking info for reference linkage
+                JSONObject customField1 = new JSONObject();
+                customField1.put("app_reference_id", referenceId);
+                customField1.put("creation_time", new java.text.SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'").format(new java.util.Date()));
+                customField1.put("client_version", "1.0.0");
+                payload.put("custom_field1", customField1.toString());
+                
+                // Log the request details
+                Log.d("MidtransCharge", "=== MIDTRANS QRIS REQUEST ===");
+                Log.d("MidtransCharge", "URL: " + MIDTRANS_CHARGE_URL);
+                Log.d("MidtransCharge", "Authorization: " + MIDTRANS_AUTH);
+                Log.d("MidtransCharge", "X-Override-Notification: " + WEBHOOK_URL);
+                Log.d("MidtransCharge", "Reference ID: " + referenceId);
+                Log.d("MidtransCharge", "Order ID: " + transactionUuid);
+                Log.d("MidtransCharge", "Amount: " + amount);
+                Log.d("MidtransCharge", "================================");
+
+                // Make the API call to Midtrans
+                URL url = new URI(MIDTRANS_CHARGE_URL).toURL();
+                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+                conn.setRequestMethod("POST");
+                conn.setRequestProperty("Accept", "application/json");
+                conn.setRequestProperty("Content-Type", "application/json");
+                conn.setRequestProperty("Authorization", MIDTRANS_AUTH); 
+                conn.setRequestProperty("X-Override-Notification", WEBHOOK_URL);
+                conn.setRequestProperty("User-Agent", "BDKIPOCApp/1.0");
+                conn.setDoOutput(true);
+                conn.setConnectTimeout(30000); // 30 seconds
+                conn.setReadTimeout(30000); // 30 seconds
+                
+                try (OutputStream os = conn.getOutputStream()) {
+                    byte[] input = payload.toString().getBytes("utf-8");
+                    os.write(input, 0, input.length);
+                }
+                
+                int responseCode = conn.getResponseCode();
+                Log.d("MidtransCharge", "Midtrans HTTP Response Code: " + responseCode);
+                
+                if (responseCode == 200 || responseCode == 201) {
+                    InputStream inputStream = conn.getInputStream();
+                    if (inputStream != null) {
+                        BufferedReader br = new BufferedReader(new InputStreamReader(inputStream, "utf-8"));
+                        StringBuilder response = new StringBuilder();
+                        String responseLine;
+                        while ((responseLine = br.readLine()) != null) {
+                            response.append(responseLine.trim());
+                        }
+                        
+                        Log.d("MidtransCharge", "Midtrans Success Response: " + response.toString());
+                        
+                        // Parse the response
+                        midtransResponse = new JSONObject(response.toString());
+                        
+                        // Check if response contains error within success response
+                        if (midtransResponse.has("status_code")) {
+                            String statusCode = midtransResponse.getString("status_code");
+                            if (!statusCode.equals("201")) {
+                                String statusMessage = midtransResponse.optString("status_message", "Unknown error");
+                                Log.e("MidtransCharge", "Midtrans Error in response: " + statusCode + " - " + statusMessage);
+                                errorMessage = "Midtrans Error: " + statusMessage + " (Code: " + statusCode + ")";
+                                return false;
+                            }
+                        }
+                        
+                        // Validate response has required fields
+                        if (!midtransResponse.has("actions") || 
+                            !midtransResponse.has("transaction_id") ||
+                            !midtransResponse.has("gross_amount")) {
+                            Log.e("MidtransCharge", "Missing required fields in Midtrans response");
+                            errorMessage = "Invalid response from Midtrans - missing required fields";
+                            return false;
+                        }
+                        
+                        Log.d("MidtransCharge", "✅ QRIS generation successful!");
+                        return true;
+                    } else {
+                        Log.e("MidtransCharge", "HTTP " + responseCode + ": No input stream available");
+                        errorMessage = "Error generating QRIS: HTTP " + responseCode + ": No input stream available";
+                        return false;
+                    }
+                } else {
+                    InputStream errorStream = conn.getErrorStream();
+                    if (errorStream != null) {
+                        BufferedReader br = new BufferedReader(new InputStreamReader(errorStream, "utf-8"));
+                        StringBuilder errorResponse = new StringBuilder();
+                        String responseLine;
+                        while ((responseLine = br.readLine()) != null) {
+                            errorResponse.append(responseLine.trim());
+                        }
+                        
+                        Log.e("MidtransCharge", "Midtrans HTTP " + responseCode + ": " + errorResponse.toString());
+                        
+                        // Try to parse error JSON for better error message
+                        try {
+                            JSONObject errorJson = new JSONObject(errorResponse.toString());
+                            
+                            // Handle different error response formats
+                            String errorMessage = "";
+                            if (errorJson.has("error_messages")) {
+                                errorMessage = errorJson.optString("error_messages", "Unknown error");
+                            } else if (errorJson.has("status_message")) {
+                                errorMessage = errorJson.optString("status_message", "Unknown error");
+                            } else if (errorJson.has("message")) {
+                                errorMessage = errorJson.optString("message", "Unknown error");
+                            } else {
+                                errorMessage = errorResponse.toString();
+                            }
+                            
+                            this.errorMessage = "Midtrans Error: " + errorMessage;
+                        } catch (JSONException e) {
+                            this.errorMessage = "HTTP " + responseCode + ": " + errorResponse.toString();
+                        }
+                    } else {
+                        Log.e("MidtransCharge", "HTTP " + responseCode + ": No error stream available");
+                        this.errorMessage = "Error generating QRIS: HTTP " + responseCode + ": No error stream available";
+                    }
+                    return false;
+                }
+            } catch (Exception e) {
+                Log.e("MidtransCharge", "Midtrans QRIS generation exception: " + e.getMessage(), e);
+                errorMessage = "Network error: " + e.getMessage();
+                return false;
+            }
+        }
+        
+        @Override
+        protected void onPostExecute(Boolean success) {
+            // ✅ FRONTEND CLEANUP: Always clear in-progress status
+            markTransactionInProgress(false);
+            
+            if (success && midtransResponse != null) {
+                try {
+                    // Extract needed values from midtransResponse
+                    JSONArray actionsArray = midtransResponse.getJSONArray("actions");
+                    if (actionsArray.length() == 0) {
+                        Log.e("MidtransCharge", "No actions found in Midtrans response");
+                        Toast.makeText(QrisActivity.this, "Error: No QR code URL found in response", Toast.LENGTH_LONG).show();
+                        initiatePaymentButton.setEnabled(true);
+                        progressBar.setVisibility(View.GONE);
+                        statusTextView.setVisibility(View.GONE);
+                        return;
+                    }
+                    
+                    JSONObject actions = actionsArray.getJSONObject(0);
+                    String qrImageUrl = actions.getString("url");
+                    
+                    // Extract transaction_id
+                    String transactionId = midtransResponse.getString("transaction_id");
+                    String transactionTime = midtransResponse.getString("transaction_time");
+                    String acquirer = midtransResponse.getString("acquirer");
+                    String merchantId = midtransResponse.getString("merchant_id");
+                    
+                    // Send raw amount as string without decimal conversion
+                    String rawAmountString = String.valueOf(amount); // Keep original integer amount
+                    
+                    // Log everything before launching activity
+                    Log.d("MidtransCharge", "=== LAUNCHING QRIS RESULT ACTIVITY ===");
+                    Log.d("MidtransCharge", "✅ Transaction created successfully!");
+                    Log.d("MidtransCharge", "qrImageUrl: " + qrImageUrl);
+                    Log.d("MidtransCharge", "amount (raw): " + amount);
+                    Log.d("MidtransCharge", "rawAmountString: " + rawAmountString);
+                    Log.d("MidtransCharge", "referenceId: " + referenceId);
+                    Log.d("MidtransCharge", "transactionUuid (orderId): " + transactionUuid);
+                    Log.d("MidtransCharge", "transaction_id: " + transactionId);
+                    Log.d("MidtransCharge", "transactionTime: " + transactionTime);
+                    Log.d("MidtransCharge", "acquirer: " + acquirer);
+                    Log.d("MidtransCharge", "merchantId: " + merchantId);
+                    Log.d("MidtransCharge", "========================================");
+                    
+                    // ✅ FINAL SUCCESS: Update transaction status in preferences
+                    transactionPrefs.edit()
+                        .putString("last_qris_url", qrImageUrl)
+                        .putString("last_qris_reference", referenceId)
+                        .putLong("last_qris_time", System.currentTimeMillis())
+                        .apply();
+                    
+                    // Launch QrisResultActivity
+                    Intent intent = new Intent(QrisActivity.this, QrisResultActivity.class);
+                    intent.putExtra("qrImageUrl", qrImageUrl);
+                    intent.putExtra("amount", amount); // Keep as int
+                    intent.putExtra("referenceId", referenceId);
+                    intent.putExtra("orderId", transactionUuid); // Order ID
+                    intent.putExtra("transactionId", transactionId); // Actual Midtrans transaction_id
+                    intent.putExtra("grossAmount", rawAmountString); // Raw amount as string (no decimals)
+                    intent.putExtra("transactionTime", transactionTime); // For timestamp
+                    intent.putExtra("acquirer", acquirer);
+                    intent.putExtra("merchantId", merchantId);
+                    
+                    try {
+                        startActivity(intent);
+                        finish(); // Close QrisActivity
+                        
+                        Log.d("MidtransCharge", "🎉 Successfully launched QrisResultActivity");
+                        
+                    } catch (Exception e) {
+                        Log.e("MidtransCharge", "Failed to start QrisResultActivity: " + e.getMessage(), e);
+                        Toast.makeText(QrisActivity.this, "Error launching QR display: " + e.getMessage(), Toast.LENGTH_LONG).show();
+                        
+                        // Re-enable button on error
+                        initiatePaymentButton.setEnabled(true);
+                        progressBar.setVisibility(View.GONE);
+                        statusTextView.setVisibility(View.GONE);
+                    }
+                    return;
+                    
+                } catch (JSONException e) {
+                    Log.e("MidtransCharge", "QRIS response JSON error: " + e.getMessage(), e);
+                    Toast.makeText(QrisActivity.this, "Error processing QRIS response: " + e.getMessage(), Toast.LENGTH_LONG).show();
+                }
+            } else {
+                // Handle error case
+                String message = (errorMessage != null && !errorMessage.isEmpty()) ? 
+                    errorMessage : "Unknown error occurred. Please check your connection and try again.";
+                    
+                Log.e("MidtransCharge", "❌ Transaction failed: " + message);
+                Toast.makeText(QrisActivity.this, message, Toast.LENGTH_LONG).show();
+                
+                // Re-enable button for retry
+                initiatePaymentButton.setEnabled(true);
+            }
+            
+            // Always hide progress indicators
+            progressBar.setVisibility(View.GONE);
+            statusTextView.setVisibility(View.GONE);
+        }
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        // ✅ CLEANUP: Clear any in-progress status when activity is destroyed
+        markTransactionInProgress(false);
+        Log.d("QrisActivity", "🧹 QrisActivity destroyed, cleared progress status");
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        // Keep progress status when paused (user might come back)
+        Log.d("QrisActivity", "⏸️ QrisActivity paused");
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        Log.d("QrisActivity", "▶️ QrisActivity resumed");
+        
+        // Check if there's a recent successful transaction
+        String lastSuccessfulTx = transactionPrefs.getString(PREF_LAST_SUCCESSFUL_TX, "");
+        if (!lastSuccessfulTx.isEmpty()) {
+            try {
+                JSONObject txData = new JSONObject(lastSuccessfulTx);
+                String lastRef = txData.getString("reference_id");
+                long lastTime = txData.getLong("created_at");
+                
+                // If last successful transaction was recent (within 5 minutes) and same reference
+                if (System.currentTimeMillis() - lastTime < 300000 && lastRef.equals(referenceId)) {
+                    Log.d("QrisActivity", "🔄 Recent successful transaction detected for same reference");
+                }
+            } catch (Exception e) {
+                Log.w("QrisActivity", "Could not parse last successful transaction: " + e.getMessage());
+            }
+        }
+    }
+
+    @Override
+    public void onBackPressed() {
+        // ✅ CLEANUP: Clear progress status when user goes back
+        markTransactionInProgress(false);
+        super.onBackPressed();
+    }
+}

app/src/main/java/com/example/bdkipoc/settlement/SettlementActivity.java

@@ -0,0 +1,354 @@
+package com.example.bdkipoc;
+
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+import android.widget.Toast;
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.text.NumberFormat;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
+
+public class SettlementActivity extends AppCompatActivity {
+    
+    private TextView tvTotalAmount;
+    private TextView tvTotalTransactions;
+    private RecyclerView recyclerView;
+    private SettlementAdapter adapter;
+    private List<SettlementItem> settlementList;
+    private ImageView btnBack;
+    
+    private String API_URL = "https://be-edc.msvc.app/transactions/performa-chanel-pembayaran?from_date=2025-01-01&to_date=2025-06-04&location_id=0&merchant_id=0";
+    
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_settlement);
+        
+        initViews();
+        setupRecyclerView();
+        fetchApiData();
+        setupClickListeners();
+    }
+    
+    private void fetchApiData() {
+        // Execute network call in background thread
+        new ApiTask().execute(API_URL);
+    }
+    
+    private void processApiData(JSONArray dataArray) {
+        try {
+            settlementList.clear();
+            
+            final long[] totalAmountArray = {0}; // Using array to make it effectively final
+            final int[] totalTransactionsArray = {0}; // Using array to make it effectively final
+            
+            // Process each channel individually (no grouping)
+            for (int i = 0; i < dataArray.length(); i++) {
+                JSONObject item = dataArray.getJSONObject(i);
+                
+                String channelCode = item.getString("channel_code");
+                int transactions = item.getInt("total_transactions");
+                long maxAmount = item.getLong("max_transastions");
+                
+                // Use channel code directly as display name with some formatting
+                String displayName = formatChannelName(channelCode);
+                int iconResource = getChannelIcon(channelCode);
+                
+                settlementList.add(new SettlementItem(
+                    displayName,
+                    maxAmount,
+                    transactions,
+                    iconResource
+                ));
+                
+                totalAmountArray[0] += maxAmount;
+                totalTransactionsArray[0] += transactions;
+            }
+            
+            // Update UI on main thread
+            runOnUiThread(new Runnable() {
+                @Override
+                public void run() {
+                    updateSummary(totalAmountArray[0], totalTransactionsArray[0]);
+                    adapter.notifyDataSetChanged();
+                }
+            });
+            
+        } catch (JSONException e) {
+            e.printStackTrace();
+            runOnUiThread(new Runnable() {
+                @Override
+                public void run() {
+                    Toast.makeText(SettlementActivity.this, "Error parsing data", Toast.LENGTH_SHORT).show();
+                    loadSampleData(); // Fallback to sample data
+                }
+            });
+        }
+    }
+    
+    private void updateSummary(long totalAmount, int totalTransactions) {
+        tvTotalAmount.setText(formatCurrency(totalAmount));
+        tvTotalTransactions.setText(String.valueOf(totalTransactions));
+    }
+    
+    private void initViews() {
+        tvTotalAmount = findViewById(R.id.tv_total_amount);
+        tvTotalTransactions = findViewById(R.id.tv_total_transactions);
+        recyclerView = findViewById(R.id.recycler_view);
+        btnBack = findViewById(R.id.btn_back);
+        
+        settlementList = new ArrayList<>();
+    }
+    
+    private void setupRecyclerView() {
+        adapter = new SettlementAdapter(settlementList);
+        recyclerView.setLayoutManager(new LinearLayoutManager(this));
+        recyclerView.setAdapter(adapter);
+    }
+    
+    private void setupClickListeners() {
+        btnBack.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                finish();
+            }
+        });
+    }
+    
+    private void loadSampleData() {
+        // Sample data as fallback
+        settlementList.clear();
+        
+        settlementList.add(new SettlementItem("Kartu Kredit", 200000, 13, android.R.drawable.ic_menu_recent_history));
+        settlementList.add(new SettlementItem("Kartu Debit", 200000, 13, android.R.drawable.ic_menu_manage));
+        settlementList.add(new SettlementItem("Transfer", 200000, 13, android.R.drawable.ic_menu_send));
+        settlementList.add(new SettlementItem("Uang Elektronik", 200000, 13, android.R.drawable.ic_menu_gallery));
+        settlementList.add(new SettlementItem("QRIS", 200000, 13, android.R.drawable.ic_menu_camera));
+        
+        // Update summary
+        tvTotalAmount.setText(formatCurrency(3506500));
+        tvTotalTransactions.setText("65");
+        
+        adapter.notifyDataSetChanged();
+    }
+    
+    private String formatChannelName(String channelCode) {
+        // Format channel code to be more readable
+        switch (channelCode) {
+            case "GO-PAY":
+                return "GoPay";
+            case "SHOPEEPAY":
+                return "ShopeePay";
+            case "LINKAJA":
+                return "LinkAja";
+            case "MASTERCARD":
+                return "Mastercard";
+            case "VISA":
+                return "Visa";
+            case "QRIS":
+                return "QRIS";
+            case "DANA":
+                return "Dana";
+            case "OVO":
+                return "OVO";
+            case "DEBIT":
+                return "Kartu Debit";
+            case "GPN":
+                return "GPN";
+            case "OTHER":
+                return "Lainnya";
+            default:
+                // Capitalize first letter and make rest lowercase
+                return channelCode.substring(0, 1).toUpperCase() + 
+                       channelCode.substring(1).toLowerCase();
+        }
+    }
+    
+    private String getChannelDisplayName(String channelCode) {
+        // Deprecated - keeping for backward compatibility
+        return formatChannelName(channelCode);
+    }
+    
+    private int getChannelIcon(String channelCode) {
+        // Dynamic icon assignment based on channel type
+        switch (channelCode) {
+            case "DEBIT":
+                return android.R.drawable.ic_menu_manage;
+            case "VISA":
+            case "MASTERCARD":
+                return android.R.drawable.ic_menu_recent_history;
+            case "QRIS":
+                return android.R.drawable.ic_menu_camera;
+            case "DANA":
+            case "GO-PAY":
+            case "OVO":
+            case "SHOPEEPAY":
+            case "LINKAJA":
+                return android.R.drawable.ic_menu_gallery;
+            case "GPN":
+                return android.R.drawable.ic_menu_send;
+            case "OTHER":
+                return android.R.drawable.ic_menu_info_details;
+            default:
+                return android.R.drawable.ic_menu_help;
+        }
+    }
+    
+    private String formatCurrency(long amount) {
+        NumberFormat formatter = NumberFormat.getNumberInstance(new Locale("id", "ID"));
+        return formatter.format(amount);
+    }
+    
+    // Deprecated helper class - no longer needed
+    // private static class ChannelData { ... }
+    
+    // AsyncTask for API call
+    private class ApiTask extends AsyncTask<String, Void, String> {
+        @Override
+        protected String doInBackground(String... urls) {
+            try {
+                URL url = new URL(urls[0]);
+                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+                connection.setRequestMethod("GET");
+                connection.setConnectTimeout(5000);
+                connection.setReadTimeout(5000);
+                
+                int responseCode = connection.getResponseCode();
+                if (responseCode == HttpURLConnection.HTTP_OK) {
+                    BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
+                    StringBuilder response = new StringBuilder();
+                    String line;
+                    
+                    while ((line = reader.readLine()) != null) {
+                        response.append(line);
+                    }
+                    reader.close();
+                    return response.toString();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            return null;
+        }
+        
+        @Override
+        protected void onPostExecute(String result) {
+            if (result != null) {
+                try {
+                    JSONObject jsonResponse = new JSONObject(result);
+                    if (jsonResponse.getInt("status") == 200) {
+                        JSONArray dataArray = jsonResponse.getJSONArray("data");
+                        processApiData(dataArray);
+                    } else {
+                        Toast.makeText(SettlementActivity.this, "API Error", Toast.LENGTH_SHORT).show();
+                        loadSampleData();
+                    }
+                } catch (JSONException e) {
+                    e.printStackTrace();
+                    Toast.makeText(SettlementActivity.this, "JSON Parse Error", Toast.LENGTH_SHORT).show();
+                    loadSampleData();
+                }
+            } else {
+                Toast.makeText(SettlementActivity.this, "Network Error", Toast.LENGTH_SHORT).show();
+                loadSampleData();
+            }
+        }
+    }
+}
+
+// SettlementItem class - combined in same file
+class SettlementItem {
+    private String channelName;
+    private long amount;
+    private int transactionCount;
+    private int iconResource;
+    
+    public SettlementItem() {}
+    
+    public SettlementItem(String channelName, long amount, int transactionCount, int iconResource) {
+        this.channelName = channelName;
+        this.amount = amount;
+        this.transactionCount = transactionCount;
+        this.iconResource = iconResource;
+    }
+    
+    // Getters and Setters
+    public String getChannelName() { return channelName; }
+    public void setChannelName(String channelName) { this.channelName = channelName; }
+    public long getAmount() { return amount; }
+    public void setAmount(long amount) { this.amount = amount; }
+    public int getTransactionCount() { return transactionCount; }
+    public void setTransactionCount(int transactionCount) { this.transactionCount = transactionCount; }
+    public int getIconResource() { return iconResource; }
+    public void setIconResource(int iconResource) { this.iconResource = iconResource; }
+}
+
+// SettlementAdapter class - combined in same file
+class SettlementAdapter extends RecyclerView.Adapter<SettlementAdapter.SettlementViewHolder> {
+    
+    private List<SettlementItem> settlementList;
+    
+    public SettlementAdapter(List<SettlementItem> settlementList) {
+        this.settlementList = settlementList;
+    }
+    
+    @NonNull
+    @Override
+    public SettlementViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(parent.getContext())
+                .inflate(R.layout.item_settlement, parent, false);
+        return new SettlementViewHolder(view);
+    }
+    
+    @Override
+    public void onBindViewHolder(@NonNull SettlementViewHolder holder, int position) {
+        SettlementItem item = settlementList.get(position);
+        
+        holder.ivIcon.setImageResource(item.getIconResource());
+        holder.tvChannelName.setText(item.getChannelName());
+        holder.tvAmount.setText("Rp. " + formatCurrency(item.getAmount()));
+        holder.tvTransactionCount.setText(item.getTransactionCount() + " Transaksi");
+    }
+    
+    @Override
+    public int getItemCount() {
+        return settlementList.size();
+    }
+    
+    private String formatCurrency(long amount) {
+        NumberFormat formatter = NumberFormat.getNumberInstance(new Locale("id", "ID"));
+        return formatter.format(amount);
+    }
+    
+    static class SettlementViewHolder extends RecyclerView.ViewHolder {
+        ImageView ivIcon;
+        TextView tvChannelName;
+        TextView tvAmount;
+        TextView tvTransactionCount;
+        
+        public SettlementViewHolder(@NonNull View itemView) {
+            super(itemView);
+            ivIcon = itemView.findViewById(R.id.iv_icon);
+            tvChannelName = itemView.findViewById(R.id.tv_channel_name);
+            tvAmount = itemView.findViewById(R.id.tv_amount);
+            tvTransactionCount = itemView.findViewById(R.id.tv_transaction_count);
+        }
+    }
+}

app/src/main/java/com/example/bdkipoc/transaction/ResultTransactionActivity.java

@@ -0,0 +1,711 @@
+package com.example.bdkipoc.transaction;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+
+import com.example.bdkipoc.R;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.text.NumberFormat;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Locale;
+
+/**
+ * ResultTransactionActivity - Enhanced Receipt-style Display using activity_receipt.xml
+ * Shows EMV/Card transaction results using the same layout as QRIS receipts
+ */
+public class ResultTransactionActivity extends AppCompatActivity {
+    private static final String TAG = "ResultTransaction";
+    
+    // ✅ UI Components using activity_receipt.xml IDs
+    private LinearLayout backNavigation;
+    private ImageView backArrow;
+    private TextView toolbarTitle;
+    
+    // Receipt details
+    private TextView merchantName;
+    private TextView merchantLocation;
+    private TextView midText;
+    private TextView tidText;
+    private TextView transactionNumber;
+    private TextView transactionDate;
+    private TextView paymentMethod;
+    private TextView cardType;
+    private TextView transactionTotal;
+    private TextView taxPercentage;
+    private TextView serviceFee;
+    private TextView finalTotal;
+    
+    // Action buttons
+    private LinearLayout printButton;
+    private LinearLayout emailButton;
+    private Button finishButton;
+    
+    // Data from intent
+    private String transactionAmount;
+    private String cardTypeFromIntent;
+    private boolean emvMode;
+    private String referenceId;
+    private String cardNo;
+    private String midtransResponse;
+    private boolean paymentSuccess;
+    private String emvCardholderName;
+    private String emvAid;
+    private String emvExpiry;
+    
+    // Internal data
+    private JSONObject responseJsonData;
+    private boolean isNavigating = false;
+    
+    // Receipt calculation data
+    private long subtotalAmount = 0;
+    private long taxAmount = 0;
+    private long serviceFeeAmount = 500; // Default service fee
+    private double taxPercentageValue = 0.11; // 11% tax
+    
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        
+        // ✅ CRITICAL: Use the same layout as ReceiptActivity
+        setContentView(R.layout.activity_receipt);
+        
+        Log.d(TAG, "=== RESULT TRANSACTION ACTIVITY STARTED ===");
+        Log.d(TAG, "✅ Using activity_receipt.xml layout");
+        
+        initViews();
+        extractIntentData();
+        debugAllDataSources();
+        setupListeners();
+        calculateAmounts();
+        displayReceiptData();
+        
+        logTransactionDetails();
+    }
+    
+    private void initViews() {
+        // ✅ Initialize views using activity_receipt.xml IDs
+        
+        // Navigation
+        backNavigation = findViewById(R.id.back_navigation);
+        backArrow = findViewById(R.id.backArrow);
+        toolbarTitle = findViewById(R.id.toolbarTitle);
+        
+        // Receipt details
+        merchantName = findViewById(R.id.merchant_name);
+        merchantLocation = findViewById(R.id.merchant_location);
+        midText = findViewById(R.id.mid_text);
+        tidText = findViewById(R.id.tid_text);
+        transactionNumber = findViewById(R.id.transaction_number);
+        transactionDate = findViewById(R.id.transaction_date);
+        paymentMethod = findViewById(R.id.payment_method);
+        cardType = findViewById(R.id.card_type);
+        transactionTotal = findViewById(R.id.transaction_total);
+        taxPercentage = findViewById(R.id.tax_percentage);
+        serviceFee = findViewById(R.id.service_fee);
+        finalTotal = findViewById(R.id.final_total);
+        
+        // Action buttons
+        printButton = findViewById(R.id.print_button);
+        emailButton = findViewById(R.id.email_button);
+        finishButton = findViewById(R.id.finish_button);
+        
+        Log.d(TAG, "✅ All views initialized using activity_receipt.xml");
+    }
+    
+    private void extractIntentData() {
+        Intent intent = getIntent();
+        
+        transactionAmount = intent.getStringExtra("TRANSACTION_AMOUNT");
+        cardTypeFromIntent = intent.getStringExtra("CARD_TYPE");
+        emvMode = intent.getBooleanExtra("EMV_MODE", false);
+        referenceId = intent.getStringExtra("REFERENCE_ID");
+        cardNo = intent.getStringExtra("CARD_NO");
+        midtransResponse = intent.getStringExtra("MIDTRANS_RESPONSE");
+        paymentSuccess = intent.getBooleanExtra("PAYMENT_SUCCESS", true);
+        emvCardholderName = intent.getStringExtra("EMV_CARDHOLDER_NAME");
+        emvAid = intent.getStringExtra("EMV_AID");
+        emvExpiry = intent.getStringExtra("EMV_EXPIRY");
+        
+        Log.d(TAG, "=== EXTRACTING INTENT DATA ===");
+        Log.d(TAG, "Card Type: " + cardTypeFromIntent);
+        Log.d(TAG, "EMV Mode: " + emvMode);
+        Log.d(TAG, "Transaction Amount: " + transactionAmount);
+        Log.d(TAG, "Reference ID: " + referenceId);
+        Log.d(TAG, "Midtrans Response Length: " + (midtransResponse != null ? midtransResponse.length() : 0));
+        
+        // Parse Midtrans response if available
+        if (midtransResponse != null && !midtransResponse.isEmpty()) {
+            try {
+                responseJsonData = new JSONObject(midtransResponse);
+                Log.d(TAG, "✅ Midtrans Response parsed successfully!");
+                
+                // Check for bank field specifically
+                if (responseJsonData.has("bank")) {
+                    String bankValue = responseJsonData.getString("bank");
+                    Log.d(TAG, "✅ Bank field found: '" + bankValue + "'");
+                } else {
+                    Log.w(TAG, "⚠️ No 'bank' field in Midtrans response");
+                }
+                
+            } catch (JSONException e) {
+                Log.e(TAG, "❌ Error parsing Midtrans response: " + e.getMessage());
+                responseJsonData = null;
+            }
+        } else {
+            Log.w(TAG, "⚠️ No Midtrans response data available");
+            responseJsonData = null;
+        }
+        
+        Log.d(TAG, "===============================");
+    }
+    
+    private void setupListeners() {
+        // Back navigation
+        backNavigation.setOnClickListener(v -> {
+            if (isNavigating) return;
+            navigateBack();
+        });
+        
+        backArrow.setOnClickListener(v -> {
+            if (isNavigating) return;
+            navigateBack();
+        });
+        
+        toolbarTitle.setOnClickListener(v -> {
+            if (isNavigating) return;
+            navigateBack();
+        });
+        
+        // Print button
+        printButton.setOnClickListener(v -> {
+            showToast("Mencetak struk...");
+            printReceipt();
+        });
+        
+        // Email button
+        emailButton.setOnClickListener(v -> {
+            showToast("Mengirim email...");
+            emailReceipt();
+        });
+        
+        // ✅ Finish button - Navigate to new transaction
+        finishButton.setOnClickListener(v -> {
+            if (isNavigating) return;
+            navigateToNewTransaction();
+        });
+        
+        Log.d(TAG, "✅ All click listeners setup");
+    }
+    
+    private void calculateAmounts() {
+        try {
+            if (transactionAmount != null && !transactionAmount.isEmpty()) {
+                subtotalAmount = Long.parseLong(transactionAmount);
+            } else {
+                subtotalAmount = 3500000; // Default amount for demo
+            }
+            
+            // Calculate tax (11%)
+            taxAmount = Math.round(subtotalAmount * taxPercentageValue);
+            
+            // Service fee is fixed
+            serviceFeeAmount = 500;
+            
+            Log.d(TAG, "Amounts calculated - Subtotal: " + subtotalAmount + 
+                      ", Tax: " + taxAmount + ", Service: " + serviceFeeAmount);
+            
+        } catch (NumberFormatException e) {
+            Log.e(TAG, "Error calculating amounts: " + e.getMessage());
+            // Set default values
+            subtotalAmount = 3500000;
+            taxAmount = 385000;
+            serviceFeeAmount = 500;
+        }
+    }
+    
+    private void displayReceiptData() {
+        Log.d(TAG, "=== DISPLAYING RECEIPT DATA ===");
+        debugAllDataSources();
+        
+        // ✅ 1. Set merchant data
+        merchantName.setText("TOKO KLONTONG PAK EKO");
+        merchantLocation.setText("Ciputat Baru, Tangsel");
+        
+        // ✅ 2. Set MID and TID
+        String tid = extractTidFromResponse();
+        midText.setText("MID: " + tid);
+        tidText.setText("TID: " + tid);
+        
+        // ✅ 3. Set transaction number
+        String displayTransactionNumber = extractTransactionNumberFromResponse();
+        transactionNumber.setText(displayTransactionNumber);
+        
+        // ✅ 4. Set transaction date
+        String displayDate = formatTransactionDate();
+        transactionDate.setText(displayDate);
+        
+        // ✅ 5. Set payment method
+        String displayPaymentMethod = getPaymentMethodDisplay();
+        paymentMethod.setText(displayPaymentMethod);
+        
+        // ✅ 6. ENHANCED: Set card type with comprehensive detection
+        String displayCardType = getCardTypeDisplay();
+        cardType.setText(displayCardType);
+        
+        // ✅ 7. Set amount details
+        NumberFormat formatter = NumberFormat.getNumberInstance(new Locale("id", "ID"));
+        
+        transactionTotal.setText(formatter.format(subtotalAmount));
+        taxPercentage.setText(Math.round(taxPercentageValue * 100) + "%");
+        serviceFee.setText(formatter.format(serviceFeeAmount));
+        
+        // Final total
+        long finalTotalAmount = subtotalAmount + taxAmount + serviceFeeAmount;
+        finalTotal.setText(formatter.format(finalTotalAmount));
+        
+        Log.d(TAG, "✅ Receipt data displayed successfully");
+        Log.d(TAG, "   Payment Method: " + displayPaymentMethod);
+        Log.d(TAG, "   Card Type: " + displayCardType);
+        Log.d(TAG, "   Final Total: " + formatter.format(finalTotalAmount));
+        Log.d(TAG, "================================");
+    }
+    
+    private String extractTidFromResponse() {
+        if (responseJsonData != null && responseJsonData.has("tid")) {
+            try {
+                return responseJsonData.getString("tid");
+            } catch (JSONException e) {
+                Log.e(TAG, "Error extracting TID: " + e.getMessage());
+            }
+        }
+        return "123456789901"; // Default TID
+    }
+    
+    private String extractTransactionNumberFromResponse() {
+        if (responseJsonData != null) {
+            try {
+                if (responseJsonData.has("transaction_id")) {
+                    String fullTransactionId = responseJsonData.getString("transaction_id");
+                    // Extract last 10 digits for display
+                    if (fullTransactionId.length() > 10) {
+                        return fullTransactionId.substring(fullTransactionId.length() - 10);
+                    }
+                    return fullTransactionId;
+                }
+            } catch (JSONException e) {
+                Log.e(TAG, "Error extracting transaction number: " + e.getMessage());
+            }
+        }
+        
+        // Generate from reference ID or use default
+        if (referenceId != null && referenceId.length() > 10) {
+            return referenceId.substring(referenceId.length() - 10);
+        }
+        
+        return String.valueOf(System.currentTimeMillis() % 10000000000L);
+    }
+    
+    private String formatTransactionDate() {
+        if (responseJsonData != null) {
+            try {
+                if (responseJsonData.has("transaction_time")) {
+                    String transactionTime = responseJsonData.getString("transaction_time");
+                    return formatDateForDisplay(transactionTime);
+                }
+            } catch (JSONException e) {
+                Log.e(TAG, "Error extracting transaction time: " + e.getMessage());
+            }
+        }
+        
+        // Use current date and time
+        return formatDateForDisplay(new Date());
+    }
+    
+    private String formatDateForDisplay(String dateString) {
+        try {
+            SimpleDateFormat inputFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
+            SimpleDateFormat outputFormat = new SimpleDateFormat("dd MMMM yyyy HH:mm", new Locale("id", "ID"));
+            Date date = inputFormat.parse(dateString);
+            return outputFormat.format(date);
+        } catch (Exception e) {
+            Log.e(TAG, "Error formatting date: " + e.getMessage());
+            return formatDateForDisplay(new Date());
+        }
+    }
+    
+    private String formatDateForDisplay(Date date) {
+        SimpleDateFormat outputFormat = new SimpleDateFormat("dd MMMM yyyy HH:mm", new Locale("id", "ID"));
+        return outputFormat.format(date);
+    }
+    
+    private String getPaymentMethodDisplay() {
+        if (cardTypeFromIntent == null) return "Kartu Kredit";
+        
+        switch (cardTypeFromIntent.toUpperCase()) {
+            case "EMV_MIDTRANS":
+            case "IC":
+            case "NFC":
+                return emvMode ? "Kartu Kredit (EMV)" : "Kartu Kredit";
+            case "DEBIT":
+                return emvMode ? "Kartu Debit (EMV)" : "Kartu Debit";
+            case "MAGNETIC":
+                return "Kartu Kredit";
+            default:
+                return "Kartu Kredit";
+        }
+    }
+    
+    // ✅ ENHANCED: Comprehensive bank detection for EMV transactions
+    private String getCardTypeDisplay() {
+        Log.d(TAG, "=== DETERMINING CARD TYPE DISPLAY (EMV) ===");
+        
+        // Priority 1: Get bank from Midtrans response (most accurate)
+        if (responseJsonData != null) {
+            Log.d(TAG, "✅ Midtrans response available, checking for bank...");
+            
+            try {
+                String bankFromResponse = null;
+                
+                if (responseJsonData.has("bank")) {
+                    bankFromResponse = responseJsonData.getString("bank");
+                    Log.d(TAG, "Found 'bank' field: '" + bankFromResponse + "'");
+                } else if (responseJsonData.has("issuer")) {
+                    bankFromResponse = responseJsonData.getString("issuer");
+                    Log.d(TAG, "Found 'issuer' field: '" + bankFromResponse + "'");
+                } else if (responseJsonData.has("acquiring_bank")) {
+                    bankFromResponse = responseJsonData.getString("acquiring_bank");
+                    Log.d(TAG, "Found 'acquiring_bank' field: '" + bankFromResponse + "'");
+                }
+                
+                if (bankFromResponse != null && !bankFromResponse.trim().isEmpty()) {
+                    String formattedBank = formatBankName(bankFromResponse);
+                    Log.d(TAG, "✅ Bank from Midtrans response: '" + bankFromResponse + "' -> '" + formattedBank + "'");
+                    return formattedBank;
+                }
+                
+            } catch (JSONException e) {
+                Log.e(TAG, "❌ Error extracting bank from response: " + e.getMessage());
+            }
+        }
+        
+        // Priority 2: EMV AID detection
+        Log.d(TAG, "Trying EMV AID detection...");
+        if (emvAid != null && !emvAid.trim().isEmpty()) {
+            String bankFromAid = getBankFromAid(emvAid);
+            if (!bankFromAid.equals("BCA")) { // If not default
+                Log.d(TAG, "✅ Bank from EMV AID: " + bankFromAid);
+                return bankFromAid;
+            }
+        }
+        
+        // Priority 3: Card BIN detection
+        Log.d(TAG, "Trying Card BIN detection...");
+        if (cardNo != null && cardNo.length() >= 6) {
+            String cardBin = cardNo.substring(0, 6);
+            String bankFromBin = getBankFromComprehensiveBin(cardBin);
+            Log.d(TAG, "✅ Bank from BIN (" + cardBin + "): " + bankFromBin);
+            return bankFromBin;
+        }
+        
+        Log.d(TAG, "⚠️ Using default bank: BCA");
+        Log.d(TAG, "====================================");
+        return "BCA"; // Default fallback
+    }
+    
+    // ✅ ENHANCED: Better bank name formatting
+    private String formatBankName(String bankName) {
+        if (bankName == null || bankName.trim().isEmpty()) {
+            return "BCA"; // Default
+        }
+        
+        String formatted = bankName.trim().toUpperCase();
+        
+        // Handle common bank name variations
+        switch (formatted) {
+            case "BCA":
+            case "BANK BCA":
+            case "BANK CENTRAL ASIA":
+                return "BCA";
+                
+            case "MANDIRI":
+            case "BANK MANDIRI":
+                return "Mandiri";
+                
+            case "BNI":
+            case "BANK BNI":
+            case "BANK NEGARA INDONESIA":
+                return "BNI";
+                
+            case "BRI":
+            case "BANK BRI":
+            case "BANK RAKYAT INDONESIA":
+                return "BRI";
+                
+            case "CIMB":
+            case "CIMB NIAGA":
+            case "BANK CIMB NIAGA":
+                return "CIMB Niaga";
+                
+            case "DANAMON":
+            case "BANK DANAMON":
+                return "Danamon";
+                
+            case "PERMATA":
+            case "BANK PERMATA":
+                return "Permata";
+                
+            default:
+                return capitalizeFirstLetter(bankName);
+        }
+    }
+    
+    private String getBankFromAid(String aid) {
+        // AID to Indonesian bank mapping
+        if (aid.contains("A0000000031010")) {
+            // VISA - check if we have card number for better detection
+            if (cardNo != null && cardNo.length() >= 6) {
+                return getBankFromComprehensiveBin(cardNo.substring(0, 6));
+            }
+            return "BCA"; // Default for VISA
+        }
+        
+        if (aid.contains("A0000000041010")) {
+            // MASTERCARD
+            if (cardNo != null && cardNo.length() >= 6) {
+                return getBankFromComprehensiveBin(cardNo.substring(0, 6));
+            }
+            return "Mandiri"; // Default for Mastercard
+        }
+        
+        return "BCA"; // Ultimate fallback
+    }
+    
+    // ✅ ENHANCED: Comprehensive Indonesian bank BIN mapping
+    private String getBankFromComprehensiveBin(String bin) {
+        if (bin == null || bin.length() < 4) {
+            return "BCA"; // Default
+        }
+        
+        String bin4 = bin.substring(0, 4);
+        String bin6 = bin.length() >= 6 ? bin.substring(0, 6) : bin4;
+        
+        // BCA patterns
+        if (bin4.equals("4621") || bin4.equals("4699") || bin4.equals("5221") || bin4.equals("6277")) {
+            return "BCA";
+        }
+        
+        // MANDIRI patterns
+        if (bin4.equals("4313") || bin4.equals("5573") || bin4.equals("6011") || bin4.equals("6234")) {
+            return "Mandiri";
+        }
+        
+        // BNI patterns  
+        if (bin4.equals("4603") || bin4.equals("1946") || bin4.equals("5264")) {
+            return "BNI";
+        }
+        
+        // BRI patterns
+        if (bin4.equals("4578") || bin4.equals("4479") || bin4.equals("5208")) {
+            return "BRI";
+        }
+        
+        // CIMB NIAGA patterns
+        if (bin4.equals("4599") || bin4.equals("5249")) {
+            return "CIMB Niaga";
+        }
+        
+        // DANAMON patterns
+        if (bin4.equals("4055") || bin4.equals("5108")) {
+            return "Danamon";
+        }
+        
+        // Default fallback
+        Log.d(TAG, "Unknown BIN pattern: " + bin6 + ", using default BCA");
+        return "BCA";
+    }
+    
+    private String capitalizeFirstLetter(String input) {
+        if (input == null || input.isEmpty()) {
+            return input;
+        }
+        return input.substring(0, 1).toUpperCase() + input.substring(1).toLowerCase();
+    }
+    
+    // ✅ Debug methods
+    private void debugAllDataSources() {
+        Log.d(TAG, "=== DEBUGGING ALL DATA SOURCES ===");
+        
+        if (responseJsonData != null) {
+            Log.d(TAG, "Midtrans Response Available:");
+            try {
+                java.util.Iterator<String> keys = responseJsonData.keys();
+                while (keys.hasNext()) {
+                    String key = keys.next();
+                    Object value = responseJsonData.get(key);
+                    Log.d(TAG, "  " + key + ": " + value);
+                }
+            } catch (Exception e) {
+                Log.e(TAG, "Error iterating response: " + e.getMessage());
+            }
+        } else {
+            Log.d(TAG, "❌ No Midtrans Response Data");
+        }
+        
+        Log.d(TAG, "EMV Data:");
+        Log.d(TAG, "  Card Number: " + (cardNo != null ? maskCardNumber(cardNo) : "null"));
+        Log.d(TAG, "  EMV AID: " + emvAid);
+        Log.d(TAG, "  EMV Cardholder: " + emvCardholderName);
+        Log.d(TAG, "  EMV Mode: " + emvMode);
+        
+        Log.d(TAG, "==================================");
+    }
+    
+    private void logTransactionDetails() {
+        Log.d(TAG, "=== RECEIPT DETAILS ===");
+        Log.d(TAG, "Reference ID: " + referenceId);
+        Log.d(TAG, "Card Number: " + (cardNo != null ? maskCardNumber(cardNo) : "N/A"));
+        Log.d(TAG, "Subtotal: " + subtotalAmount);
+        Log.d(TAG, "Tax: " + taxAmount);
+        Log.d(TAG, "Service Fee: " + serviceFeeAmount);
+        Log.d(TAG, "Final Total: " + (subtotalAmount + taxAmount + serviceFeeAmount));
+        Log.d(TAG, "======================");
+    }
+    
+    // Action Methods
+    private void printReceipt() {
+        Log.d(TAG, "Print receipt requested");
+        showToast("Fitur cetak akan segera tersedia");
+    }
+    
+    private void emailReceipt() {
+        Log.d(TAG, "Email receipt requested");
+        
+        Intent emailIntent = new Intent(Intent.ACTION_SEND);
+        emailIntent.setType("text/plain");
+        emailIntent.putExtra(Intent.EXTRA_SUBJECT, "Struk Pembayaran - " + extractTransactionNumberFromResponse());
+        emailIntent.putExtra(Intent.EXTRA_TEXT, generateEmailContent());
+        
+        try {
+            startActivity(Intent.createChooser(emailIntent, "Kirim Email"));
+        } catch (Exception e) {
+            Log.e(TAG, "Error sending email: " + e.getMessage());
+            showToast("Tidak dapat mengirim email");
+        }
+    }
+    
+    private String generateEmailContent() {
+        StringBuilder content = new StringBuilder();
+        NumberFormat formatter = NumberFormat.getNumberInstance(new Locale("id", "ID"));
+        
+        content.append("STRUK PEMBAYARAN EMV/CARD\n");
+        content.append("==========================\n\n");
+        content.append("TOKO KLONTONG PAK EKO\n");
+        content.append("Ciputat Baru, Tangsel\n\n");
+        content.append("TID: ").append(extractTidFromResponse()).append("\n");
+        content.append("Nomor Transaksi: ").append(extractTransactionNumberFromResponse()).append("\n");
+        content.append("Tanggal: ").append(formatTransactionDate()).append("\n");
+        content.append("Metode: ").append(getPaymentMethodDisplay()).append("\n");
+        content.append("Jenis Kartu: ").append(getCardTypeDisplay()).append("\n\n");
+        
+        if (emvMode && emvCardholderName != null) {
+            content.append("DETAIL EMV:\n");
+            content.append("Cardholder: ").append(emvCardholderName).append("\n");
+            content.append("AID: ").append(emvAid).append("\n\n");
+        }
+        
+        content.append("RINCIAN PEMBAYARAN:\n");
+        content.append("Total Transaksi: Rp ").append(formatter.format(subtotalAmount)).append("\n");
+        content.append("Pajak (11%): Rp ").append(formatter.format(taxAmount)).append("\n");
+        content.append("Biaya Layanan: Rp ").append(formatter.format(serviceFeeAmount)).append("\n");
+        content.append("------------------------\n");
+        content.append("TOTAL: Rp ").append(formatter.format(subtotalAmount + taxAmount + serviceFeeAmount)).append("\n");
+        content.append("\nTerima kasih atas pembayaran Anda!");
+        
+        return content.toString();
+    }
+    
+    // Navigation Methods
+    private void navigateBack() {
+        if (isNavigating) return;
+        
+        Log.d(TAG, "Navigating back");
+        isNavigating = true;
+        finish();
+    }
+    
+    private void navigateToNewTransaction() {
+        if (isNavigating) return;
+        
+        new AlertDialog.Builder(this)
+            .setTitle("Transaksi Baru")
+            .setMessage("Apakah Anda ingin melakukan transaksi baru?")
+            .setPositiveButton("Ya", (dialog, which) -> {
+                performNavigateToNewTransaction();
+            })
+            .setNegativeButton("Tidak", null)
+            .show();
+    }
+    
+    private void performNavigateToNewTransaction() {
+        Log.d(TAG, "=== NAVIGATING TO NEW TRANSACTION ===");
+        isNavigating = true;
+        
+        new Handler(Looper.getMainLooper()).postDelayed(() -> {
+            try {
+                Intent intent = new Intent(this, CreateTransactionActivity.class);
+                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
+                startActivity(intent);
+                finish();
+            } catch (Exception e) {
+                Log.e(TAG, "Error navigating to new transaction: " + e.getMessage());
+                isNavigating = false;
+                showToast("Gagal membuka transaksi baru");
+            }
+        }, 300);
+    }
+    
+    // Helper Methods
+    private String maskCardNumber(String cardNumber) {
+        if (cardNumber == null || cardNumber.length() < 8) {
+            return cardNumber;
+        }
+        String first4 = cardNumber.substring(0, 4);
+        String last4 = cardNumber.substring(cardNumber.length() - 4);
+        return first4 + "****" + last4;
+    }
+    
+    private void showToast(String message) {
+        Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
+    }
+    
+    @Override
+    public void onBackPressed() {
+        if (isNavigating) {
+            return;
+        }
+        navigateBack();
+        super.onBackPressed();
+    }
+    
+    @Override
+    protected void onDestroy() {
+        Log.d(TAG, "ResultTransactionActivity destroyed");
+        super.onDestroy();
+    }
+}

app/src/main/java/com/example/bdkipoc/transaction/managers/CardScannerManager.java

@@ -0,0 +1,258 @@
+package com.example.bdkipoc.transaction.managers;
+
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
+import android.os.RemoteException;
+import android.util.Log;
+
+import com.example.bdkipoc.MyApplication;
+import com.sunmi.pay.hardware.aidl.AidlConstants.CardType;
+import com.sunmi.pay.hardware.aidlv2.AidlConstantsV2;
+import com.sunmi.pay.hardware.aidlv2.readcard.CheckCardCallbackV2;
+
+/**
+ * CardScannerManager - Handles card detection for both EMV and Simple modes
+ */
+public class CardScannerManager {
+    private static final String TAG = "CardScannerManager";
+    
+    private CardScannerCallback callback;
+    private boolean isProcessing = false;
+    
+    public interface CardScannerCallback {
+        void onCardDetected(String cardType, Bundle cardData);
+        void onEMVCardDetected(int cardType);
+        void onScanError(String errorMessage);
+        void onScanProgress(String message);
+    }
+    
+    public CardScannerManager(CardScannerCallback callback) {
+        this.callback = callback;
+    }
+    
+    public void startScanning(boolean isEMVMode) {
+        if (isProcessing) {
+            Log.d(TAG, "Card check already in progress - ignoring call");
+            return;
+        }
+        
+        Log.d(TAG, "Starting card check - setting isProcessing = true");
+        isProcessing = true;
+        
+        try {
+            // Small delay to ensure everything is ready
+            new Handler(Looper.getMainLooper()).postDelayed(() -> {
+                if (isProcessing) {
+                    if (isEMVMode) {
+                        startEMVCardCheck();
+                    } else {
+                        startSimpleCardCheck();
+                    }
+                }
+            }, 500);
+            
+        } catch (Exception e) {
+            Log.e(TAG, "Error in startScanning: " + e.getMessage(), e);
+            handleScanError("Error: " + e.getMessage());
+        }
+    }
+    
+    public void stopScanning() {
+        try {
+            if (MyApplication.app != null && MyApplication.app.readCardOptV2 != null) {
+                MyApplication.app.readCardOptV2.cancelCheckCard();
+            }
+            isProcessing = false;
+            Log.d(TAG, "Card scanning stopped");
+        } catch (Exception e) {
+            Log.e(TAG, "Error stopping card check: " + e.getMessage());
+        }
+    }
+    
+    public boolean isScanning() {
+        return isProcessing;
+    }
+    
+    private void startEMVCardCheck() {
+        try {
+            if (callback != null) {
+                callback.onScanProgress("EMV Mode: Starting card scan...");
+            }
+            
+            int cardType = AidlConstantsV2.CardType.NFC.getValue() | AidlConstantsV2.CardType.IC.getValue();
+            Log.d(TAG, "Starting EMV checkCard with cardType: " + cardType);
+            
+            MyApplication.app.readCardOptV2.checkCard(cardType, mEMVCheckCardCallback, 60);
+            
+        } catch (Exception e) {
+            e.printStackTrace();
+            Log.e(TAG, "Error in startEMVCardCheck: " + e.getMessage());
+            handleScanError("Error starting EMV card scan: " + e.getMessage());
+        }
+    }
+    
+    private void startSimpleCardCheck() {
+        try {
+            if (!MyApplication.app.isConnectPaySDK()) {
+                if (callback != null) {
+                    callback.onScanProgress("Connecting to PaySDK...");
+                }
+                MyApplication.app.bindPaySDKService();
+                return;
+            }
+            
+            if (callback != null) {
+                callback.onScanProgress("Simple Mode: Starting card scan...");
+            }
+            
+            int cardType = CardType.MAGNETIC.getValue() | CardType.IC.getValue() | CardType.NFC.getValue();
+            
+            MyApplication.app.readCardOptV2.checkCard(cardType, mSimpleCheckCardCallback, 60);
+            
+        } catch (Exception e) {
+            e.printStackTrace();
+            handleScanError("Error starting card scan: " + e.getMessage());
+        }
+    }
+    
+    private void handleScanError(String errorMessage) {
+        Log.e(TAG, "Scan error: " + errorMessage);
+        isProcessing = false;
+        
+        if (callback != null) {
+            callback.onScanError(errorMessage);
+        }
+    }
+    
+    public void resetScanning() {
+        Log.d(TAG, "Resetting scanning state");
+        isProcessing = false;
+    }
+    
+    // Simple Card Detection Callback
+    private final CheckCardCallbackV2 mSimpleCheckCardCallback = new CheckCardCallbackV2.Stub() {
+        @Override
+        public void findMagCard(Bundle info) throws RemoteException {
+            Log.d(TAG, "Simple Mode: findMagCard callback triggered");
+            isProcessing = false;
+            if (callback != null) {
+                callback.onCardDetected("MAGNETIC", info);
+            }
+        }
+
+        @Override
+        public void findICCard(String atr) throws RemoteException {
+            Bundle info = new Bundle();
+            info.putString("atr", atr);
+            isProcessing = false;
+            if (callback != null) {
+                callback.onCardDetected("IC", info);
+            }
+        }
+
+        @Override
+        public void findRFCard(String uuid) throws RemoteException {
+            Bundle info = new Bundle();
+            info.putString("uuid", uuid);
+            isProcessing = false;
+            if (callback != null) {
+                callback.onCardDetected("NFC", info);
+            }
+        }
+
+        @Override
+        public void onError(int code, String message) throws RemoteException {
+            isProcessing = false;
+            if (callback != null) {
+                callback.onScanError("Card error: " + message);
+            }
+        }
+
+        @Override
+        public void findICCardEx(Bundle info) throws RemoteException {
+            isProcessing = false;
+            if (callback != null) {
+                callback.onCardDetected("IC", info);
+            }
+        }
+
+        @Override
+        public void findRFCardEx(Bundle info) throws RemoteException {
+            isProcessing = false;
+            if (callback != null) {
+                callback.onCardDetected("NFC", info);
+            }
+        }
+
+        @Override
+        public void onErrorEx(Bundle info) throws RemoteException {
+            isProcessing = false;
+            String msg = info.getString("message", "Unknown error");
+            if (callback != null) {
+                callback.onScanError("Card error: " + msg);
+            }
+        }
+    };
+    
+    // EMV Card Detection Callback
+    private final CheckCardCallbackV2 mEMVCheckCardCallback = new CheckCardCallbackV2.Stub() {
+        @Override
+        public void findMagCard(Bundle info) throws RemoteException {
+            isProcessing = false;
+            if (callback != null) {
+                callback.onCardDetected("MAGNETIC", info);
+            }
+        }
+
+        @Override
+        public void findICCard(String atr) throws RemoteException {
+            MyApplication.app.basicOptV2.buzzerOnDevice(1, 2750, 200, 0);
+            isProcessing = false;
+            if (callback != null) {
+                callback.onEMVCardDetected(AidlConstantsV2.CardType.IC.getValue());
+            }
+        }
+
+        @Override
+        public void findRFCard(String uuid) throws RemoteException {
+            isProcessing = false;
+            if (callback != null) {
+                callback.onEMVCardDetected(AidlConstantsV2.CardType.NFC.getValue());
+            }
+        }
+
+        @Override
+        public void onError(int code, String message) throws RemoteException {
+            isProcessing = false;
+            if (callback != null) {
+                callback.onScanError("EMV Error: " + message);
+            }
+        }
+
+        @Override
+        public void findICCardEx(Bundle info) throws RemoteException {
+            isProcessing = false;
+            if (callback != null) {
+                callback.onEMVCardDetected(AidlConstantsV2.CardType.IC.getValue());
+            }
+        }
+
+        @Override
+        public void findRFCardEx(Bundle info) throws RemoteException {
+            isProcessing = false;
+            if (callback != null) {
+                callback.onEMVCardDetected(AidlConstantsV2.CardType.NFC.getValue());
+            }
+        }
+
+        @Override
+        public void onErrorEx(Bundle info) throws RemoteException {
+            isProcessing = false;
+            String msg = info.getString("message", "Unknown error");
+            if (callback != null) {
+                callback.onScanError("EMV Error: " + msg);
+            }
+        }
+    };
+}

app/src/main/java/com/example/bdkipoc/transaction/managers/EMVManager.java

@@ -0,0 +1,417 @@
+package com.example.bdkipoc.transaction.managers;
+
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
+import android.os.RemoteException;
+import android.text.TextUtils;
+import android.util.Log;
+
+import com.example.bdkipoc.MyApplication;
+import com.sunmi.pay.hardware.aidlv2.AidlConstantsV2;
+import com.sunmi.pay.hardware.aidlv2.bean.EMVCandidateV2;
+import com.sunmi.pay.hardware.aidlv2.emv.EMVListenerV2;
+import com.sunmi.pay.hardware.aidlv2.emv.EMVOptV2;
+
+import java.util.List;
+
+/**
+ * EMVManager - Handles all EMV related operations
+ */
+public class EMVManager {
+    private static final String TAG = "EMVManager";
+    
+    private EMVOptV2 mEMVOptV2;
+    private EMVManagerCallback callback;
+    
+    // EMV Process Variables
+    private int mCardType;
+    private String mCardNo;
+    private int mPinType;
+    private String mCertInfo;
+    private int mProcessStep;
+    
+    public interface EMVManagerCallback {
+        void onAppSelect(String[] candidateNames);
+        void onFinalAppSelect();
+        void onConfirmCardNo(String cardNo);
+        void onCertVerify(String certInfo);
+        void onShowPinPad(int pinType);
+        void onOnlineProcess();
+        void onSignature();
+        void onTransactionSuccess(int code, String desc);
+        void onTransactionFailed(int code, String desc);
+    }
+    
+    public EMVManager(EMVManagerCallback callback) {
+        this.callback = callback;
+        initEMVComponents();
+    }
+    
+    private void initEMVComponents() {
+        if (MyApplication.app != null) {
+            mEMVOptV2 = MyApplication.app.emvOptV2;
+            Log.d(TAG, "EMV components initialized");
+        } else {
+            Log.e(TAG, "MyApplication.app is null");
+        }
+    }
+    
+    public void initEMVData() {
+        try {
+            if (mEMVOptV2 != null) {
+                mEMVOptV2.initEmvProcess();
+                
+                new Handler(Looper.getMainLooper()).postDelayed(() -> {
+                    try {
+                        initEmvTlvData();
+                        Log.d(TAG, "EMV data initialized successfully");
+                    } catch (Exception e) {
+                        Log.e(TAG, "Error in delayed EMV init: " + e.getMessage());
+                    }
+                }, 500);
+            }
+        } catch (Exception e) {
+            Log.e(TAG, "Error initializing EMV data: " + e.getMessage());
+        }
+    }
+    
+    private void initEmvTlvData() {
+        try {
+            // Set PayPass (MasterCard) TLV data
+            String[] tagsPayPass = {"DF8117", "DF8118", "DF8119", "DF811F", "DF811E", "DF812C",
+                    "DF8123", "DF8124", "DF8125", "DF8126", "DF811B", "DF811D", "DF8122", "DF8120", "DF8121"};
+            String[] valuesPayPass = {"E0", "F8", "F8", "E8", "00", "00",
+                    "000000000000", "000000100000", "999999999999", "000000100000",
+                    "30", "02", "0000000000", "000000000000", "000000000000"};
+            mEMVOptV2.setTlvList(AidlConstantsV2.EMV.TLVOpCode.OP_PAYPASS, tagsPayPass, valuesPayPass);
+
+            // Set AMEX TLV data
+            String[] tagsAE = {"9F6D", "9F6E", "9F33", "9F35", "DF8168", "DF8167", "DF8169", "DF8170"};
+            String[] valuesAE = {"C0", "D8E00000", "E0E888", "22", "00", "00", "00", "60"};
+            mEMVOptV2.setTlvList(AidlConstantsV2.EMV.TLVOpCode.OP_AE, tagsAE, valuesAE);
+
+            // Set JCB TLV data
+            String[] tagsJCB = {"9F53", "DF8161"};
+            String[] valuesJCB = {"708000", "7F00"};
+            mEMVOptV2.setTlvList(AidlConstantsV2.EMV.TLVOpCode.OP_JCB, tagsJCB, valuesJCB);
+
+            // Set DPAS TLV data
+            String[] tagsDPAS = {"9F66"};
+            String[] valuesDPAS = {"B600C000"};
+            mEMVOptV2.setTlvList(AidlConstantsV2.EMV.TLVOpCode.OP_DPAS, tagsDPAS, valuesDPAS);
+
+            // Set Flash TLV data
+            String[] tagsFLASH = {"9F58", "9F59", "9F5A", "9F5D", "9F5E"};
+            String[] valuesFLASH = {"03", "D88700", "00", "000000000000", "E000"};
+            mEMVOptV2.setTlvList(AidlConstantsV2.EMV.TLVOpCode.OP_FLASH, tagsFLASH, valuesFLASH);
+
+            // Set Pure TLV data
+            String[] tagsPURE = {"DF7F", "DF8134", "DF8133"};
+            String[] valuesPURE = {"A0000007271010", "DF", "36006043F9"};
+            mEMVOptV2.setTlvList(AidlConstantsV2.EMV.TLVOpCode.OP_PURE, tagsPURE, valuesPURE);
+
+            Bundle bundle = new Bundle();
+            bundle.putBoolean("optOnlineRes", true);
+            mEMVOptV2.setTermParamEx(bundle);
+            
+        } catch (RemoteException e) {
+            Log.e(TAG, "Error setting EMV TLV data: " + e.getMessage());
+        }
+    }
+    
+    public void startEMVTransaction(String transactionAmount, int cardType) {
+        if (mProcessStep != 0) {
+            Log.d(TAG, "EMV transaction already in progress (step: " + mProcessStep + ") - ignoring call");
+            return;
+        }
+        
+        Log.d(TAG, "Starting EMV transaction process");
+        mProcessStep = 1;
+        mCardType = cardType;
+        
+        try {
+            mEMVOptV2.initEmvProcess();
+            
+            new Handler(Looper.getMainLooper()).postDelayed(() -> {
+                try {
+                    if (mProcessStep <= 0) {
+                        Log.d(TAG, "EMV process was cancelled - not starting");
+                        return;
+                    }
+                    
+                    Bundle bundle = new Bundle();
+                    bundle.putString("amount", transactionAmount);
+                    bundle.putString("transType", "00");
+                    bundle.putInt("flowType", AidlConstantsV2.EMV.FlowType.TYPE_EMV_STANDARD);
+                    bundle.putInt("cardType", mCardType);
+                    
+                    Log.d(TAG, "Starting transactProcessEx with reset EMV");
+                    mEMVOptV2.transactProcessEx(bundle, mEMVListener);
+                    
+                } catch (Exception e) {
+                    Log.e(TAG, "Error in delayed EMV start: " + e.getMessage(), e);
+                    if (callback != null) {
+                        callback.onTransactionFailed(-1, "Error starting EMV: " + e.getMessage());
+                    }
+                }
+            }, 300);
+            
+        } catch (Exception e) {
+            Log.e(TAG, "Error starting EMV transaction: " + e.getMessage());
+            if (callback != null) {
+                callback.onTransactionFailed(-1, "Error starting EMV transaction: " + e.getMessage());
+            }
+        }
+    }
+    
+    public void resetEMVProcess() {
+        try {
+            if (mEMVOptV2 != null) {
+                mEMVOptV2.initEmvProcess();
+            }
+            mProcessStep = 0;
+            mCardNo = null;
+            Log.d(TAG, "EMV process reset");
+        } catch (Exception e) {
+            Log.e(TAG, "Error resetting EMV process: " + e.getMessage());
+        }
+    }
+    
+    // EMV Import Methods
+    public void importAppSelect(int selectIndex) {
+        try {
+            mEMVOptV2.importAppSelect(selectIndex);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    public void importFinalAppSelectStatus(int status) {
+        try {
+            mEMVOptV2.importAppFinalSelectStatus(status);
+        } catch (RemoteException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public void importCardNoStatus(int status) {
+        try {
+            mEMVOptV2.importCardNoStatus(status);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    public void importCertStatus(int status) {
+        try {
+            mEMVOptV2.importCertStatus(status);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    public void importPinInputStatus(int inputResult) {
+        try {
+            mEMVOptV2.importPinInputStatus(mPinType, inputResult);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    public void importSignatureStatus(int status) {
+        try {
+            mEMVOptV2.importSignatureStatus(status);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+    
+    public void mockOnlineProcess() {
+        new Thread(() -> {
+            try {
+                Thread.sleep(2000);
+                
+                try {
+                    String[] tags = {"71", "72", "91", "8A", "89"};
+                    String[] values = {"", "", "", "", ""};
+                    byte[] out = new byte[1024];
+                    int len = mEMVOptV2.importOnlineProcStatus(0, tags, values, out);
+                    if (len < 0) {
+                        Log.e(TAG, "importOnlineProcessStatus error,code:" + len);
+                    }
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }).start();
+    }
+    
+    // Getters
+    public String getCardNo() {
+        return mCardNo;
+    }
+    
+    public int getCardType() {
+        return mCardType;
+    }
+    
+    public int getPinType() {
+        return mPinType;
+    }
+    
+    // Helper Methods
+    public String maskCardNumber(String cardNo) {
+        if (cardNo == null || cardNo.length() < 8) {
+            return cardNo;
+        }
+        String first4 = cardNo.substring(0, 4);
+        String last4 = cardNo.substring(cardNo.length() - 4);
+        StringBuilder middle = new StringBuilder();
+        for (int i = 0; i < cardNo.length() - 8; i++) {
+            middle.append("*");
+        }
+        return first4 + middle.toString() + last4;
+    }
+    
+    public String[] getCandidateNames(List<EMVCandidateV2> candiList) {
+        if (candiList == null || candiList.size() == 0) return new String[0];
+        String[] result = new String[candiList.size()];
+        for (int i = 0; i < candiList.size(); i++) {
+            EMVCandidateV2 candi = candiList.get(i);
+            String name = candi.appPreName;
+            name = TextUtils.isEmpty(name) ? candi.appLabel : name;
+            name = TextUtils.isEmpty(name) ? candi.appName : name;
+            name = TextUtils.isEmpty(name) ? "" : name;
+            result[i] = name;
+        }
+        return result;
+    }
+    
+    // EMV Listener
+    private final EMVListenerV2 mEMVListener = new EMVListenerV2.Stub() {
+        
+        @Override
+        public void onWaitAppSelect(List<EMVCandidateV2> appNameList, boolean isFirstSelect) throws RemoteException {
+            Log.d(TAG, "onWaitAppSelect isFirstSelect:" + isFirstSelect);
+            mProcessStep = 1; // EMV_APP_SELECT
+            String[] candidateNames = getCandidateNames(appNameList);
+            if (callback != null) {
+                callback.onAppSelect(candidateNames);
+            }
+        }
+
+        @Override
+        public void onAppFinalSelect(String tag9F06Value) throws RemoteException {
+            Log.d(TAG, "onAppFinalSelect tag9F06Value:" + tag9F06Value);
+            mProcessStep = 2; // EMV_FINAL_APP_SELECT
+            if (callback != null) {
+                callback.onFinalAppSelect();
+            }
+        }
+
+        @Override
+        public void onConfirmCardNo(String cardNo) throws RemoteException {
+            Log.d(TAG, "onConfirmCardNo cardNo:" + maskCardNumber(cardNo));
+            mCardNo = cardNo;
+            mProcessStep = 3; // EMV_CONFIRM_CARD_NO
+            if (callback != null) {
+                callback.onConfirmCardNo(cardNo);
+            }
+        }
+
+        @Override
+        public void onRequestShowPinPad(int pinType, int remainTime) throws RemoteException {
+            Log.d(TAG, "onRequestShowPinPad pinType:" + pinType + " remainTime:" + remainTime);
+            mPinType = pinType;
+            mProcessStep = 5; // EMV_SHOW_PIN_PAD
+            if (callback != null) {
+                callback.onShowPinPad(pinType);
+            }
+        }
+
+        @Override
+        public void onRequestSignature() throws RemoteException {
+            Log.d(TAG, "onRequestSignature");
+            mProcessStep = 7; // EMV_SIGNATURE
+            if (callback != null) {
+                callback.onSignature();
+            }
+        }
+
+        @Override
+        public void onCertVerify(int certType, String certInfo) throws RemoteException {
+            Log.d(TAG, "onCertVerify certType:" + certType + " certInfo:" + certInfo);
+            mCertInfo = certInfo;
+            mProcessStep = 4; // EMV_CERT_VERIFY
+            if (callback != null) {
+                callback.onCertVerify(certInfo);
+            }
+        }
+
+        @Override
+        public void onOnlineProc() throws RemoteException {
+            Log.d(TAG, "onOnlineProcess");
+            mProcessStep = 6; // EMV_ONLINE_PROCESS
+            if (callback != null) {
+                callback.onOnlineProcess();
+            }
+        }
+
+        @Override
+        public void onCardDataExchangeComplete() throws RemoteException {
+            Log.d(TAG, "onCardDataExchangeComplete");
+            if (mCardType == AidlConstantsV2.CardType.NFC.getValue()) {
+                MyApplication.app.basicOptV2.buzzerOnDevice(1, 2750, 200, 0);
+            }
+        }
+
+        @Override
+        public void onTransResult(int code, String desc) throws RemoteException {
+            Log.d(TAG, "onTransResult code:" + code + " desc:" + desc);
+            
+            if (code == 1 || code == 2 || code == 5 || code == 6) {
+                if (callback != null) {
+                    callback.onTransactionSuccess(code, desc);
+                }
+            } else {
+                if (callback != null) {
+                    callback.onTransactionFailed(code, desc);
+                }
+            }
+        }
+
+        @Override
+        public void onConfirmationCodeVerified() throws RemoteException {
+            Log.d(TAG, "onConfirmationCodeVerified");
+        }
+
+        @Override
+        public void onRequestDataExchange(String cardNo) throws RemoteException {
+            Log.d(TAG, "onRequestDataExchange,cardNo:" + cardNo);
+            mEMVOptV2.importDataExchangeStatus(0);
+        }
+
+        @Override
+        public void onTermRiskManagement() throws RemoteException {
+            Log.d(TAG, "onTermRiskManagement");
+            mEMVOptV2.importTermRiskManagementStatus(0);
+        }
+
+        @Override
+        public void onPreFirstGenAC() throws RemoteException {
+            Log.d(TAG, "onPreFirstGenAC");
+            mEMVOptV2.importPreFirstGenACStatus(0);
+        }
+
+        @Override
+        public void onDataStorageProc(String[] containerID, String[] containerContent) throws RemoteException {
+            Log.d(TAG, "onDataStorageProc");
+            String[] tags = new String[0];
+            String[] values = new String[0];
+            mEMVOptV2.importDataStorage(tags, values);
+        }
+    };
+}

app/src/main/java/com/example/bdkipoc/transaction/managers/ModalManager.java

@@ -0,0 +1,121 @@
+package com.example.bdkipoc.transaction.managers;
+
+import android.view.View;
+import android.view.animation.Animation;
+import android.view.animation.AnimationUtils;
+import android.widget.FrameLayout;
+import android.widget.ImageView;
+import android.widget.TextView;
+import android.util.Log;
+
+import com.example.bdkipoc.R;
+
+/**
+ * ModalManager - Handles modal UI operations
+ */
+public class ModalManager {
+    private static final String TAG = "ModalManager";
+    
+    private FrameLayout modalOverlay;
+    private TextView modalText;
+    private ImageView modalIcon;
+    private Animation fadeIn;
+    private Animation fadeOut;
+    private boolean isModalShowing = false;
+    
+    public ModalManager(FrameLayout modalOverlay, TextView modalText, ImageView modalIcon) {
+        this.modalOverlay = modalOverlay;
+        this.modalText = modalText;
+        this.modalIcon = modalIcon;
+        initAnimations();
+    }
+    
+    private void initAnimations() {
+        fadeIn = AnimationUtils.loadAnimation(modalOverlay.getContext(), android.R.anim.fade_in);
+        fadeOut = AnimationUtils.loadAnimation(modalOverlay.getContext(), android.R.anim.fade_out);
+        
+        fadeIn.setDuration(300);
+        fadeOut.setDuration(300);
+    }
+    
+    public void showScanCardModal() {
+        if (isModalShowing) return;
+        
+        modalOverlay.post(() -> {
+            modalText.setText("Silakan Tempelkan / Gesekkan / Masukkan Kartu ke Perangkat");
+            modalIcon.setImageResource(R.drawable.ic_card_insert);
+            
+            modalOverlay.setVisibility(View.VISIBLE);
+            modalOverlay.startAnimation(fadeIn);
+            
+            isModalShowing = true;
+            Log.d(TAG, "Modal scan card shown");
+        });
+    }
+    
+    public void showProcessingModal(String message) {
+        if (!isModalShowing) {
+            modalOverlay.post(() -> {
+                modalText.setText(message);
+                modalIcon.setImageResource(R.drawable.ic_card_insert);
+                
+                modalOverlay.setVisibility(View.VISIBLE);
+                modalOverlay.startAnimation(fadeIn);
+                
+                isModalShowing = true;
+                Log.d(TAG, "Modal processing shown: " + message);
+            });
+        } else {
+            // Just update text if modal already showing
+            modalOverlay.post(() -> {
+                modalText.setText(message);
+                Log.d(TAG, "Modal text updated: " + message);
+            });
+        }
+    }
+    
+    public void hideModal() {
+        if (!isModalShowing) return;
+        
+        modalOverlay.post(() -> {
+            fadeOut.setAnimationListener(new Animation.AnimationListener() {
+                @Override
+                public void onAnimationStart(Animation animation) {}
+
+                @Override
+                public void onAnimationEnd(Animation animation) {
+                    modalOverlay.setVisibility(View.GONE);
+                    isModalShowing = false;
+                }
+
+                @Override
+                public void onAnimationRepeat(Animation animation) {}
+            });
+            
+            modalOverlay.startAnimation(fadeOut);
+            Log.d(TAG, "Modal hidden");
+        });
+    }
+    
+    public boolean isShowing() {
+        return isModalShowing;
+    }
+    
+    public void updateText(String text) {
+        if (isModalShowing) {
+            modalOverlay.post(() -> {
+                modalText.setText(text);
+                Log.d(TAG, "Modal text updated: " + text);
+            });
+        }
+    }
+    
+    public void updateIcon(int iconResource) {
+        if (isModalShowing) {
+            modalOverlay.post(() -> {
+                modalIcon.setImageResource(iconResource);
+                Log.d(TAG, "Modal icon updated");
+            });
+        }
+    }
+}

app/src/main/java/com/example/bdkipoc/transaction/managers/PinPadManager.java

@@ -0,0 +1,142 @@
+package com.example.bdkipoc.transaction.managers;
+
+import android.os.RemoteException;
+import android.util.Log;
+
+import com.example.bdkipoc.MyApplication;
+import com.example.bdkipoc.utils.ByteUtil;
+import com.sunmi.pay.hardware.aidlv2.AidlErrorCodeV2;
+import com.sunmi.pay.hardware.aidlv2.bean.PinPadConfigV2;
+import com.sunmi.pay.hardware.aidlv2.pinpad.PinPadListenerV2;
+import com.sunmi.pay.hardware.aidlv2.pinpad.PinPadOptV2;
+
+/**
+ * PinPadManager - Handles PIN pad operations
+ */
+public class PinPadManager {
+    private static final String TAG = "PinPadManager";
+    
+    private PinPadOptV2 mPinPadOptV2;
+    private PinPadManagerCallback callback;
+    
+    public interface PinPadManagerCallback {
+        void onPinInputLength(int length);
+        void onPinInputConfirmed(byte[] pinBlock);
+        void onPinInputCancelled();
+        void onPinInputError(int code, String message);
+    }
+    
+    public PinPadManager(PinPadManagerCallback callback) {
+        this.callback = callback;
+        initPinPadComponents();
+    }
+    
+    private void initPinPadComponents() {
+        if (MyApplication.app != null) {
+            mPinPadOptV2 = MyApplication.app.pinPadOptV2;
+            Log.d(TAG, "PIN Pad components initialized");
+        } else {
+            Log.e(TAG, "MyApplication.app is null");
+        }
+    }
+    
+    public void initPinPad(String cardNo, int pinType) {
+        Log.d(TAG, "========== PIN PAD INITIALIZATION ==========");
+        try {
+            if (mPinPadOptV2 == null) {
+                throw new IllegalStateException("PIN Pad service not available");
+            }
+
+            if (cardNo == null || cardNo.length() < 13) {
+                throw new IllegalArgumentException("Invalid card number for PIN");
+            }
+
+            PinPadConfigV2 pinPadConfig = new PinPadConfigV2();
+            pinPadConfig.setPinPadType(0);
+            pinPadConfig.setPinType(pinType);
+            pinPadConfig.setOrderNumKey(true);  // Set to true for normal order, false for random
+            
+            String panForPin = cardNo.substring(cardNo.length() - 13, cardNo.length() - 1);
+            byte[] panBytes = panForPin.getBytes("US-ASCII");
+            pinPadConfig.setPan(panBytes);
+            
+            pinPadConfig.setTimeout(60 * 1000);
+            pinPadConfig.setPinKeyIndex(12);
+            pinPadConfig.setMaxInput(12);
+            pinPadConfig.setMinInput(0);
+            pinPadConfig.setKeySystem(0);
+            pinPadConfig.setAlgorithmType(0);
+            
+            Log.d(TAG, "Initializing PIN pad with config");
+            mPinPadOptV2.initPinPad(pinPadConfig, mPinPadListener);
+            
+        } catch (Exception e) {
+            Log.e(TAG, "PIN pad initialization failed: " + e.getMessage());
+            if (callback != null) {
+                callback.onPinInputError(-1, "PIN Error: " + e.getMessage());
+            }
+        }
+    }
+    
+    public void cancelPinInput() {
+        try {
+            if (mPinPadOptV2 != null) {
+                // Cancel PIN input if needed
+                Log.d(TAG, "PIN input cancelled");
+            }
+        } catch (Exception e) {
+            Log.e(TAG, "Error cancelling PIN input: " + e.getMessage());
+        }
+    }
+    
+    // PIN Pad Listener
+    private final PinPadListenerV2 mPinPadListener = new PinPadListenerV2.Stub() {
+        @Override
+        public void onPinLength(int len) throws RemoteException {
+            Log.d(TAG, "PIN input length: " + len);
+            if (callback != null) {
+                callback.onPinInputLength(len);
+            }
+        }
+
+        @Override
+        public void onConfirm(int i, byte[] pinBlock) throws RemoteException {
+            Log.d(TAG, "PIN input confirmed");
+            
+            if (pinBlock != null) {
+                String hexStr = ByteUtil.bytes2HexStr(pinBlock);
+                Log.d(TAG, "PIN block received: " + hexStr);
+                if (callback != null) {
+                    callback.onPinInputConfirmed(pinBlock);
+                }
+            } else {
+                Log.d(TAG, "PIN bypass confirmed");
+                if (callback != null) {
+                    callback.onPinInputConfirmed(null);
+                }
+            }
+        }
+
+        @Override
+        public void onCancel() throws RemoteException {
+            Log.d(TAG, "PIN input cancelled by user");
+            if (callback != null) {
+                callback.onPinInputCancelled();
+            }
+        }
+
+        @Override
+        public void onError(int code) throws RemoteException {
+            Log.e(TAG, "PIN pad error: " + code);
+            String msg = AidlErrorCodeV2.valueOf(code).getMsg();
+            if (callback != null) {
+                callback.onPinInputError(code, msg);
+            }
+        }
+
+        @Override
+        public void onHover(int event, byte[] data) throws RemoteException {
+            Log.d(TAG, "PIN pad hover event: " + event);
+        }
+    };
+}

app/src/main/java/com/example/bdkipoc/transaction/managers/PostTransactionBackendManager.java

@@ -0,0 +1,358 @@
+package com.example.bdkipoc.transaction.managers;
+
+import android.content.Context;
+import android.os.AsyncTask;
+import android.util.Log;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.net.HttpURLConnection;
+import java.net.URI;
+import java.net.URL;
+import java.util.UUID;
+
+/**
+ * PostTransactionBackendManager - Handles backend transaction posting
+ * 
+ * This manager handles the communication with the backend service for transaction posting
+ * and provides the transaction_uuid needed for Midtrans integration.
+ */
+public class PostTransactionBackendManager {
+    private static final String TAG = "PostTransactionBackend";
+    
+    // Backend Configuration
+    private static final String BACKEND_BASE_URL = "https://be-edc.msvc.app";
+    private static final String TRANSACTIONS_ENDPOINT = BACKEND_BASE_URL + "/transactions";
+    
+    // Default values
+    private static final String DEFAULT_DEVICE_CODE = "PB4K252T00021";
+    private static final int DEFAULT_DEVICE_ID = 1;
+    private static final String DEFAULT_CASHFLOW = "MONEY_IN";
+    private static final String DEFAULT_CHANNEL_CATEGORY = "RETAIL_OUTLET";
+    
+    // ✅ NEW: Static merchant data
+    private static final String DEFAULT_MERCHANT_NAME = "BUDIAJAIB123";
+    private static final String DEFAULT_MID = "542531513";
+    private static final String DEFAULT_TID = "535151521";
+    
+    private Context context;
+    private PostTransactionCallback callback;
+    
+    public interface PostTransactionCallback {
+        void onPostTransactionSuccess(JSONObject response, String transactionUuid);
+        void onPostTransactionError(String errorMessage);
+        void onPostTransactionProgress(String message);
+    }
+    
+    public PostTransactionBackendManager(Context context, PostTransactionCallback callback) {
+        this.context = context;
+        this.callback = callback;
+    }
+    
+    /**
+     * Post transaction to backend service
+     */
+    public void postTransaction(String paymentType, String referenceId, long amount, String status) {
+        String channelCode = mapPaymentTypeToChannelCode(paymentType);
+        String transactionUuid = generateUUID();
+        
+        Log.d(TAG, "=== POSTING TRANSACTION TO BACKEND ===");
+        Log.d(TAG, "Payment Type: " + paymentType);
+        Log.d(TAG, "Channel Code: " + channelCode);
+        Log.d(TAG, "Reference ID: " + referenceId);
+        Log.d(TAG, "Amount: " + amount);
+        Log.d(TAG, "Status: " + status);
+        Log.d(TAG, "Transaction UUID: " + transactionUuid);
+        Log.d(TAG, "=====================================");
+        
+        if (callback != null) {
+            callback.onPostTransactionProgress("Posting transaction to backend...");
+        }
+        
+        new PostTransactionTask(paymentType, channelCode, referenceId, amount, status, transactionUuid).execute();
+    }
+    
+    /**
+     * Post transaction with INIT status (for pre-authorization)
+     */
+    public void postInitTransaction(String paymentType, String referenceId, long amount) {
+        postTransaction(paymentType, referenceId, amount, "INIT");
+    }
+    
+    /**
+     * Post transaction with SUCCESS status (for completed transactions)
+     */
+    public void postSuccessTransaction(String paymentType, String referenceId, long amount) {
+        postTransaction(paymentType, referenceId, amount, "SUCCESS");
+    }
+    
+    /**
+     * Update existing transaction status
+     */
+    public void updateTransactionStatus(String transactionUuid, String newStatus) {
+        Log.d(TAG, "Updating transaction " + transactionUuid + " to status: " + newStatus);
+        // TODO: Implement update endpoint if available
+        // For now, we'll create a new transaction with updated status
+    }
+    
+    /**
+     * Map payment type to channel code for backend
+     */
+    private String mapPaymentTypeToChannelCode(String paymentType) {
+        if (paymentType == null) {
+            return "CREDIT_CARD"; // Default
+        }
+        
+        switch (paymentType.toLowerCase()) {
+            case "credit_card":
+                return "CREDIT_CARD";
+            case "debit_card":
+                return "DEBIT_CARD";
+            case "e_money":
+                return "E_MONEY";
+            case "qris":
+                return "QRIS";
+            default:
+                Log.w(TAG, "Unknown payment type: " + paymentType + ", using CREDIT_CARD");
+                return "CREDIT_CARD";
+        }
+    }
+    
+    /**
+     * Generate UUID v4 for transaction
+     */
+    private String generateUUID() {
+        return UUID.randomUUID().toString();
+    }
+    
+    /**
+     * Get device serial number (Sunmi device code)
+     */
+    private String getDeviceCode() {
+        try {
+            // Try to get actual device serial number
+            // For Sunmi devices, this might be available through system properties
+            String serialNumber = android.os.Build.SERIAL;
+            if (serialNumber != null && !serialNumber.equals("unknown") && !serialNumber.equals(android.os.Build.UNKNOWN)) {
+                return serialNumber;
+            }
+        } catch (Exception e) {
+            Log.w(TAG, "Could not get device serial number: " + e.getMessage());
+        }
+        
+        // Fallback to default device code
+        return DEFAULT_DEVICE_CODE;
+    }
+    
+    /**
+     * AsyncTask for posting transaction to backend
+     */
+    private class PostTransactionTask extends AsyncTask<Void, Void, Boolean> {
+        private String paymentType;
+        private String channelCode;
+        private String referenceId;
+        private long amount;
+        private String status;
+        private String transactionUuid;
+        private String errorMessage;
+        private JSONObject responseData;
+        
+        public PostTransactionTask(String paymentType, String channelCode, String referenceId, 
+                                 long amount, String status, String transactionUuid) {
+            this.paymentType = paymentType;
+            this.channelCode = channelCode;
+            this.referenceId = referenceId;
+            this.amount = amount;
+            this.status = status;
+            this.transactionUuid = transactionUuid;
+        }
+        
+        @Override
+        protected Boolean doInBackground(Void... voids) {
+            try {
+                // Build transaction payload
+                JSONObject payload = buildTransactionPayload();
+                
+                Log.d(TAG, "Backend payload: " + payload.toString());
+                
+                // Make HTTP request
+                return makeBackendRequest(payload);
+                
+            } catch (Exception e) {
+                Log.e(TAG, "Backend transaction exception: " + e.getMessage(), e);
+                errorMessage = "Backend transaction error: " + e.getMessage();
+                return false;
+            }
+        }
+        
+        @Override
+        protected void onPostExecute(Boolean success) {
+            if (success && responseData != null && callback != null) {
+                try {
+                    // Extract transaction_uuid from response
+                    JSONObject data = responseData.optJSONObject("data");
+                    String returnedUuid = null;
+                    
+                    if (data != null) {
+                        returnedUuid = data.optString("transaction_uuid", transactionUuid);
+                    }
+                    
+                    Log.d(TAG, "✅ Backend transaction successful!");
+                    Log.d(TAG, "Original UUID: " + transactionUuid);
+                    Log.d(TAG, "Returned UUID: " + returnedUuid);
+                    
+                    callback.onPostTransactionSuccess(responseData, returnedUuid != null ? returnedUuid : transactionUuid);
+                    
+                } catch (Exception e) {
+                    Log.e(TAG, "Error processing backend response: " + e.getMessage());
+                    if (callback != null) {
+                        callback.onPostTransactionError("Error processing backend response: " + e.getMessage());
+                    }
+                }
+            } else if (callback != null) {
+                callback.onPostTransactionError(errorMessage != null ? errorMessage : "Unknown backend error");
+            }
+        }
+        
+        private JSONObject buildTransactionPayload() throws JSONException {
+            JSONObject payload = new JSONObject();
+            
+            // Required fields
+            payload.put("type", "PAYMENT");
+            payload.put("channel_category", DEFAULT_CHANNEL_CATEGORY);
+            payload.put("channel_code", channelCode);
+            payload.put("reference_id", referenceId);
+            payload.put("amount", amount);
+            payload.put("cashflow", DEFAULT_CASHFLOW);
+            payload.put("status", status);
+            payload.put("device_id", DEFAULT_DEVICE_ID);
+            payload.put("transaction_uuid", transactionUuid);
+            payload.put("transaction_time_seconds", 2.2); // Default value as mentioned
+            payload.put("device_code", getDeviceCode());
+            
+            // ✅ NEW: Static merchant data (no longer null)
+            payload.put("merchant_name", DEFAULT_MERCHANT_NAME);
+            payload.put("mid", DEFAULT_MID);
+            payload.put("tid", DEFAULT_TID);
+            
+            return payload;
+        }
+        
+        private Boolean makeBackendRequest(JSONObject payload) {
+            try {
+                URL url = new URI(TRANSACTIONS_ENDPOINT).toURL();
+                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+                
+                // Set request properties
+                conn.setRequestMethod("POST");
+                conn.setRequestProperty("Accept", "*/*");
+                conn.setRequestProperty("Content-Type", "application/json");
+                conn.setDoOutput(true);
+                conn.setConnectTimeout(30000);
+                conn.setReadTimeout(30000);
+                
+                // Send payload
+                try (OutputStream os = conn.getOutputStream()) {
+                    byte[] input = payload.toString().getBytes("utf-8");
+                    os.write(input, 0, input.length);
+                }
+                
+                // Get response
+                int responseCode = conn.getResponseCode();
+                Log.d(TAG, "Backend response code: " + responseCode);
+                
+                BufferedReader br;
+                StringBuilder response = new StringBuilder();
+                String responseLine;
+                
+                if (responseCode >= 200 && responseCode < 300) {
+                    br = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));
+                } else {
+                    br = new BufferedReader(new InputStreamReader(conn.getErrorStream(), "utf-8"));
+                }
+                
+                while ((responseLine = br.readLine()) != null) {
+                    response.append(responseLine.trim());
+                }
+                
+                String responseString = response.toString();
+                Log.d(TAG, "Backend response: " + responseString);
+                
+                // Parse response
+                try {
+                    responseData = new JSONObject(responseString);
+                    
+                    // Check if response indicates success
+                    int status = responseData.optInt("status", 0);
+                    String message = responseData.optString("message", "");
+                    
+                    if (status == 200 && "Successfully".equals(message)) {
+                        return true;
+                    } else {
+                        errorMessage = "Backend error: " + message + " (Status: " + status + ")";
+                        return false;
+                    }
+                    
+                } catch (JSONException e) {
+                    Log.e(TAG, "Error parsing backend response: " + e.getMessage());
+                    errorMessage = "Invalid backend response format";
+                    return false;
+                }
+                
+            } catch (Exception e) {
+                Log.e(TAG, "Backend request exception: " + e.getMessage(), e);
+                errorMessage = "Network error: " + e.getMessage();
+                return false;
+            }
+        }
+    }
+    
+    /**
+     * Utility method to generate reference ID
+     */
+    public static String generateReferenceId() {
+        return "ref" + System.currentTimeMillis() + (int)(Math.random() * 10000);
+    }
+    
+    /**
+     * Utility method to map card menu ID to payment type
+     */
+    public static String mapCardMenuToPaymentType(int cardMenuId) {
+        // Based on MainActivity.java card IDs
+        switch (cardMenuId) {
+            case 2131296346: // R.id.card_kartu_kredit
+                return "credit_card";
+            case 2131296344: // R.id.card_kartu_debit  
+                return "debit_card";
+            case 2131296360: // R.id.card_uang_elektronik
+                return "e_money";
+            case 2131296352: // R.id.card_qris
+                return "qris";
+            default:
+                Log.w(TAG, "Unknown card menu ID: " + cardMenuId + ", defaulting to credit_card");
+                return "credit_card";
+        }
+    }
+    
+    /**
+     * Debug method to log transaction details
+     */
+    public void debugTransactionData(String paymentType, String referenceId, long amount, String status) {
+        Log.d(TAG, "=== TRANSACTION DEBUG INFO ===");
+        Log.d(TAG, "Payment Type: " + paymentType);
+        Log.d(TAG, "Channel Code: " + mapPaymentTypeToChannelCode(paymentType));
+        Log.d(TAG, "Reference ID: " + referenceId);
+        Log.d(TAG, "Amount: " + amount);
+        Log.d(TAG, "Status: " + status);
+        Log.d(TAG, "Device Code: " + getDeviceCode());
+        Log.d(TAG, "Device ID: " + DEFAULT_DEVICE_ID);
+        Log.d(TAG, "Merchant Name: " + DEFAULT_MERCHANT_NAME);
+        Log.d(TAG, "MID: " + DEFAULT_MID);
+        Log.d(TAG, "TID: " + DEFAULT_TID);
+        Log.d(TAG, "==============================");
+    }
+}

app/src/main/java/com/example/bdkipoc/utils/ByteUtil.java

@@ -0,0 +1,265 @@
+package com.example.bdkipoc.utils;
+
+import android.text.TextUtils;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Locale;
+
+public class ByteUtil {
+
+    /** 打印内容 */
+    public static String byte2PrintHex(byte[] raw, int offset, int count) {
+        if (raw == null) {
+            return null;
+        }
+        if (offset < 0 || offset > raw.length) {
+            offset = 0;
+        }
+        int end = offset + count;
+        if (end > raw.length) {
+            end = raw.length;
+        }
+        StringBuilder hex = new StringBuilder();
+        for (int i = offset; i < end; i++) {
+            int v = raw[i] & 0xFF;
+            String hv = Integer.toHexString(v);
+            if (hv.length() < 2) {
+                hex.append(0);
+            }
+            hex.append(hv);
+            hex.append(" ");
+        }
+        if (hex.length() > 0) {
+            hex.deleteCharAt(hex.length() - 1);
+        }
+        return hex.toString().toUpperCase();
+    }
+
+    /**
+     * 将字节数组转换成16进制字符串
+     *
+     * @param bytes 源字节数组
+     * @return 转换后的16进制字符串
+     */
+    public static String bytes2HexStr(byte... bytes) {
+        if (bytes == null || bytes.length == 0) {
+            return "";
+        }
+        return bytes2HexStr(bytes, 0, bytes.length);
+    }
+
+    /**
+     * 将字节数组转换成16进制字符串
+     *
+     * @param src    源字节数组
+     * @param offset 偏移量
+     * @param len    数据长度
+     * @return 转换后的16进制字符串
+     */
+    public static String bytes2HexStr(byte[] src, int offset, int len) {
+        int end = offset + len;
+        if (src == null || src.length == 0 || offset < 0 || len < 0 || end > src.length) {
+            return "";
+        }
+        byte[] buffer = new byte[len * 2];
+        int h = 0, l = 0;
+        for (int i = offset, j = 0; i < end; i++) {
+            h = src[i] >> 4 & 0x0f;
+            l = src[i] & 0x0f;
+            buffer[j++] = (byte) (h > 9 ? h - 10 + 'A' : h + '0');
+            buffer[j++] = (byte) (l > 9 ? l - 10 + 'A' : l + '0');
+        }
+        return new String(buffer);
+    }
+
+    public static byte[] hexStr2Bytes(String hexStr) {
+        if (TextUtils.isEmpty(hexStr)) {
+            return new byte[0];
+        }
+        int length = hexStr.length() / 2;
+        char[] chars = hexStr.toCharArray();
+        byte[] b = new byte[length];
+        for (int i = 0; i < length; i++) {
+            b[i] = (byte) (char2Byte(chars[i * 2]) << 4 | char2Byte(chars[i * 2 + 1]));
+        }
+        return b;
+    }
+
+    public static byte hexStr2Byte(String hexStr) {
+        return (byte) Integer.parseInt(hexStr, 16);
+    }
+
+    public static String hexStr2Str(String hexStr) {
+        String vi = "0123456789ABC DEF".trim();
+        char[] array = hexStr.toCharArray();
+        byte[] bytes = new byte[hexStr.length() / 2];
+        int temp;
+        for (int i = 0; i < bytes.length; i++) {
+            char c = array[2 * i];
+            temp = vi.indexOf(c) * 16;
+            c = array[2 * i + 1];
+            temp += vi.indexOf(c);
+            bytes[i] = (byte) (temp & 0xFF);
+        }
+        return new String(bytes);
+    }
+
+    public static String hexStr2AsciiStr(String hexStr) {
+        String vi = "0123456789ABC DEF".trim();
+        hexStr = hexStr.trim().replace(" ", "").toUpperCase(Locale.US);
+        char[] array = hexStr.toCharArray();
+        byte[] bytes = new byte[hexStr.length() / 2];
+        int temp = 0x00;
+        for (int i = 0; i < bytes.length; i++) {
+            char c = array[2 * i];
+            temp = vi.indexOf(c) << 4;
+            c = array[2 * i + 1];
+            temp |= vi.indexOf(c);
+            bytes[i] = (byte) (temp & 0xFF);
+        }
+        return new String(bytes);
+    }
+
+    /**
+     * 将无符号short转换成int，大端模式(高位在前)
+     */
+    public static int unsignedShort2IntBE(byte[] src, int offset) {
+        return (src[offset] & 0xff) << 8 | (src[offset + 1] & 0xff);
+    }
+
+    /**
+     * 将无符号short转换成int，小端模式(低位在前)
+     */
+    public static int unsignedShort2IntLE(byte[] src, int offset) {
+        return (src[offset] & 0xff) | (src[offset + 1] & 0xff) << 8;
+    }
+
+    /**
+     * 将无符号byte转换成int
+     */
+    public static int unsignedByte2Int(byte[] src, int offset) {
+        return src[offset] & 0xFF;
+    }
+
+    /**
+     * 将字节数组转换成int,大端模式(高位在前)
+     */
+    public static int unsignedInt2IntBE(byte[] src, int offset) {
+        int result = 0;
+        for (int i = offset; i < offset + 4; i++) {
+            result |= (src[i] & 0xff) << (offset + 3 - i) * 8;
+        }
+        return result;
+    }
+
+    /**
+     * 将字节数组转换成int,小端模式(低位在前)
+     */
+    public static int unsignedInt2IntLE(byte[] src, int offset) {
+        int value = 0;
+        for (int i = offset; i < offset + 4; i++) {
+            value |= (src[i] & 0xff) << (i - offset) * 8;
+        }
+        return value;
+    }
+
+    /**
+     * 将int转换成byte数组，大端模式(高位在前)
+     */
+    public static byte[] int2BytesBE(int src) {
+        byte[] result = new byte[4];
+        for (int i = 0; i < 4; i++) {
+            result[i] = (byte) (src >> (3 - i) * 8);
+        }
+        return result;
+    }
+
+    /**
+     * 将int转换成byte数组，小端模式(低位在前)
+     */
+    public static byte[] int2BytesLE(int src) {
+        byte[] result = new byte[4];
+        for (int i = 0; i < 4; i++) {
+            result[i] = (byte) (src >> i * 8);
+        }
+        return result;
+    }
+
+    /**
+     * 将short转换成byte数组，大端模式(高位在前)
+     */
+    public static byte[] short2BytesBE(short src) {
+        byte[] result = new byte[2];
+        for (int i = 0; i < 2; i++) {
+            result[i] = (byte) (src >> (1 - i) * 8);
+        }
+        return result;
+    }
+
+    /**
+     * 将short转换成byte数组，小端模式(低位在前)
+     */
+    public static byte[] short2BytesLE(short src) {
+        byte[] result = new byte[2];
+        for (int i = 0; i < 2; i++) {
+            result[i] = (byte) (src >> i * 8);
+        }
+        return result;
+    }
+
+    /**
+     * 将字节数组列表合并成单个字节数组
+     */
+    public static byte[] concatByteArrays(byte[]... list) {
+        if (list == null || list.length == 0) {
+            return new byte[0];
+        }
+        return concatByteArrays(Arrays.asList(list));
+    }
+
+    /**
+     * 将字节数组列表合并成单个字节数组
+     */
+    public static byte[] concatByteArrays(List<byte[]> list) {
+        if (list == null || list.isEmpty()) {
+            return new byte[0];
+        }
+        int totalLen = 0;
+        for (byte[] b : list) {
+            if (b == null || b.length == 0) {
+                continue;
+            }
+            totalLen += b.length;
+        }
+        byte[] result = new byte[totalLen];
+        int index = 0;
+        for (byte[] b : list) {
+            if (b == null || b.length == 0) {
+                continue;
+            }
+            System.arraycopy(b, 0, result, index, b.length);
+            index += b.length;
+        }
+        return result;
+    }
+
+
+    /**
+     * Convert char to byte
+     *
+     * @param c char
+     * @return byte
+     */
+    private static int char2Byte(char c) {
+        if (c >= 'a') {
+            return (c - 'a' + 10) & 0x0f;
+        }
+        if (c >= 'A') {
+            return (c - 'A' + 10) & 0x0f;
+        }
+        return (c - '0') & 0x0f;
+    }
+
+
+}

app/src/main/java/com/example/bdkipoc/utils/LogUtil.java

@@ -0,0 +1,89 @@
+package com.example.bdkipoc.utils;
+
+import android.text.TextUtils;
+import android.util.Log;
+
+public class LogUtil {
+
+    public static final int VERBOSE = 1;
+    public static final int DEBUG = 2;
+    public static final int INFO = 3;
+    public static final int WARN = 4;
+    public static final int ERROR = 5;
+    public static final int NOTHING = 6;
+    public static int LEVEL = VERBOSE;
+
+    public static void setLevel(int Level) {
+        LEVEL = Level;
+    }
+
+    public static void v(String TAG, String msg) {
+        if (LEVEL <= VERBOSE && !TextUtils.isEmpty(msg)) {
+            MyLog(VERBOSE, TAG, msg);
+        }
+    }
+
+    public static void d(String TAG, String msg) {
+        if (LEVEL <= DEBUG && !TextUtils.isEmpty(msg)) {
+            MyLog(DEBUG, TAG, msg);
+        }
+    }
+
+    public static void i(String TAG, String msg) {
+        if (LEVEL <= INFO && !TextUtils.isEmpty(msg)) {
+            MyLog(INFO, TAG, msg);
+        }
+    }
+
+    public static void w(String TAG, String msg) {
+        if (LEVEL <= WARN && !TextUtils.isEmpty(msg)) {
+            MyLog(WARN, TAG, msg);
+        }
+    }
+
+    public static void e(String TAG, String msg) {
+        if (LEVEL <= ERROR && !TextUtils.isEmpty(msg)) {
+            MyLog(ERROR, TAG, msg);
+        }
+    }
+
+    private static void MyLog(int type, String TAG, String msg) {
+        StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
+        int index = 4;
+        String className = stackTrace[index].getFileName();
+        String methodName = stackTrace[index].getMethodName();
+        int lineNumber = stackTrace[index].getLineNumber();
+        methodName = methodName.substring(0, 1).toUpperCase() + methodName.substring(1);
+        StringBuilder stringBuilder = new StringBuilder();
+        stringBuilder.append("[ (")
+                .append(className)
+                .append(":")
+                .append(lineNumber)
+                .append(")#")
+                .append(methodName)
+                .append(" ] ");
+        stringBuilder.append(msg);
+        String logStr = stringBuilder.toString();
+        switch (type) {
+            case VERBOSE:
+                Log.v(TAG, logStr);
+                break;
+            case DEBUG:
+                Log.d(TAG, logStr);
+                break;
+            case INFO:
+                Log.i(TAG, logStr);
+                break;
+            case WARN:
+                Log.w(TAG, logStr);
+                break;
+            case ERROR:
+                Log.e(TAG, logStr);
+                break;
+            default:
+                break;
+        }
+    }
+
+
+}

app/src/main/java/com/example/bdkipoc/utils/Utility.java

@@ -0,0 +1,107 @@
+package com.example.bdkipoc.utils;
+
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
+import android.widget.Toast;
+
+import com.example.bdkipoc.MyApplication;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Locale;
+import java.util.regex.Pattern;
+
+public final class Utility {
+    private Utility() {
+        throw new AssertionError("Create instance of Utility is forbidden.");
+    }
+
+    /** Bundle对象转换成字符串 */
+    public static String bundle2String(Bundle bundle) {
+        return bundle2String(bundle, 1);
+    }
+
+    /**
+     * 根据key排序后将Bundle内容拼接成字符串
+     *
+     * @param bundle 要处理的bundle
+     * @param order  排序规则，0-不排序，1-升序，2-降序
+     * @return 拼接后的字符串
+     */
+    public static String bundle2String(Bundle bundle, int order) {
+        if (bundle == null || bundle.keySet().isEmpty()) {
+            return "";
+        }
+        StringBuilder sb = new StringBuilder();
+        List<String> list = new ArrayList<>(bundle.keySet());
+        if (order == 1) { //升序
+            Collections.sort(list, String::compareTo);
+        } else if (order == 2) {//降序
+            Collections.sort(list, Collections.reverseOrder());
+        }
+        for (String key : list) {
+            sb.append(key);
+            sb.append(":");
+            Object value = bundle.get(key);
+            if (value instanceof byte[]) {
+                sb.append(ByteUtil.bytes2HexStr((byte[]) value));
+            } else {
+                sb.append(value);
+            }
+            sb.append("\n");
+        }
+        if (sb.length() > 0) {
+            sb.deleteCharAt(sb.length() - 1);
+        }
+        return sb.toString();
+    }
+
+    /** 将null转换成空串 */
+    public static String null2String(String str) {
+        return str == null ? "" : str;
+    }
+
+    public static String formatStr(String format, Object... params) {
+        return String.format(Locale.ENGLISH, format, params);
+    }
+
+    /** check whether src is hex format */
+    public static boolean checkHexValue(String src) {
+        return Pattern.matches("[0-9a-fA-F]+", src);
+    }
+
+    /** 显示Toast */
+    public static void showToast(final String msg) {
+        Handler handler = new Handler(Looper.getMainLooper());
+        handler.post(() -> Toast.makeText(MyApplication.app, msg, Toast.LENGTH_SHORT).show());
+    }
+
+    /** 显示Toast */
+    public static void showToast(int resId) {
+        showToast(MyApplication.app.getString(resId));
+    }
+
+    /** 根据结果码获取成功失败信息 */
+    public static String getStateString(int code) {
+        return code == 0 ? "success" : "failed, code:" + code;
+    }
+
+    /** 根据结果状态获取成功失败信息 */
+    public static String getStateString(boolean state) {
+        return state ? "success" : "failed";
+    }
+
+    /** 将dp转成px */
+    public static int dp2px(int dp) {
+        float density = MyApplication.app.getResources().getDisplayMetrics().density;
+        return Math.round(dp * density);
+    }
+
+    /** 将px转成dp */
+    public static int px2dp(int px) {
+        float density = MyApplication.app.getResources().getDisplayMetrics().density;
+        return Math.round(px / density);
+    }
+}

app/src/main/java/com/example/bdkipoc/wrapper/CheckCardCallbackV2Wrapper.java

@@ -0,0 +1,44 @@
+package com.example.bdkipoc.wrapper;
+
+import android.os.Bundle;
+import android.os.RemoteException;
+
+import com.sunmi.pay.hardware.aidlv2.readcard.CheckCardCallbackV2;
+
+
+public class CheckCardCallbackV2Wrapper extends CheckCardCallbackV2.Stub {
+    @Override
+    public void findMagCard(Bundle info) throws RemoteException {
+
+    }
+
+    @Override
+    public void findICCard(String atr) throws RemoteException {
+
+    }
+
+    @Override
+    public void findRFCard(String uuid) throws RemoteException {
+
+    }
+
+    @Override
+    public void onError(int code, String message) throws RemoteException {
+
+    }
+
+    @Override
+    public void findICCardEx(Bundle info) throws RemoteException {
+
+    }
+
+    @Override
+    public void findRFCardEx(Bundle info) throws RemoteException {
+
+    }
+
+    @Override
+    public void onErrorEx(Bundle info) throws RemoteException {
+
+    }
+}

app/src/main/res/anim/fade_in.xml

@@ -0,0 +1,4 @@
+    <alpha xmlns:android="http://schemas.android.com/apk/res/android"
+        android:duration="300"
+        android:fromAlpha="0.0"
+        android:toAlpha="1.0" />

app/src/main/res/anim/fade_out.xml

@@ -0,0 +1,4 @@
+<alpha xmlns:android="http://schemas.android.com/apk/res/android"
+    android:duration="300"
+    android:fromAlpha="1.0"
+    android:toAlpha="0.0" />

app/src/main/res/anim/scale_in.xml

@@ -0,0 +1,14 @@
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <scale
+        android:duration="200"
+        android:fromXScale="0.8"
+        android:fromYScale="0.8"
+        android:pivotX="50%"
+        android:pivotY="50%"
+        android:toXScale="1.0"
+        android:toYScale="1.0" />
+    <alpha
+        android:duration="200"
+        android:fromAlpha="0.0"
+        android:toAlpha="1.0" />
+</set>

app/src/main/res/anim/scale_out.xml

@@ -0,0 +1,14 @@
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <scale
+        android:duration="200"
+        android:fromXScale="1.0"
+        android:fromYScale="1.0"
+        android:pivotX="50%"
+        android:pivotY="50%"
+        android:toXScale="0.8"
+        android:toYScale="0.8" />
+    <alpha
+        android:duration="200"
+        android:fromAlpha="1.0"
+        android:toAlpha="0.0" />
+</set>

app/src/main/res/anim/slide_down.xml

@@ -0,0 +1,10 @@
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <translate
+        android:duration="300"
+        android:fromYDelta="0%p"
+        android:toYDelta="50%p" />
+    <alpha
+        android:duration="300"
+        android:fromAlpha="1.0"
+        android:toAlpha="0.0" />
+</set>

app/src/main/res/anim/slide_in_left.xml

@@ -0,0 +1,10 @@
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <translate
+        android:duration="300"
+        android:fromXDelta="-100%p"
+        android:toXDelta="0" />
+    <alpha
+        android:duration="300"
+        android:fromAlpha="0.0"
+        android:toAlpha="1.0" />
+</set>

app/src/main/res/anim/slide_in_right.xml

@@ -0,0 +1,10 @@
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <translate
+        android:duration="300"
+        android:fromXDelta="100%p"
+        android:toXDelta="0" />
+    <alpha
+        android:duration="300"
+        android:fromAlpha="0.0"
+        android:toAlpha="1.0" />
+</set>

app/src/main/res/anim/slide_out_left.xml

@@ -0,0 +1,10 @@
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <translate
+        android:duration="300"
+        android:fromXDelta="0"
+        android:toXDelta="-100%p" />
+    <alpha
+        android:duration="300"
+        android:fromAlpha="1.0"
+        android:toAlpha="0.0" />
+</set>

app/src/main/res/anim/slide_out_right.xml

@@ -0,0 +1,10 @@
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <translate
+        android:duration="300"
+        android:fromXDelta="0"
+        android:toXDelta="100%p" />
+    <alpha
+        android:duration="300"
+        android:fromAlpha="1.0"
+        android:toAlpha="0.0" />
+</set>

app/src/main/res/anim/slide_up.xml

@@ -0,0 +1,10 @@
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <translate
+        android:duration="300"
+        android:fromYDelta="50%p"
+        android:toYDelta="0%p" />
+    <alpha
+        android:duration="300"
+        android:fromAlpha="0.0"
+        android:toAlpha="1.0" />
+</set>

app/src/main/res/drawable/bg_status.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#F0F0F0"/>
+    <corners android:radius="8dp"/>
+    <stroke android:width="1dp" android:color="#E0E0E0"/>
+</shape>

app/src/main/res/drawable/button_active_background.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="#DE0701" />
+    <corners android:radius="8dp" />
+</shape>

app/src/main/res/drawable/button_cancel_background.xml

@@ -0,0 +1,5 @@
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <stroke android:width="2dp" android:color="#E31937"/>
+    <corners android:radius="8dp"/>
+    <solid android:color="@android:color/transparent"/>
+</shape>

app/src/main/res/drawable/button_confirm_background_selector.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@drawable/button_active_background" android:state_enabled="true"/>
+    <item android:drawable="@drawable/button_inactive_background" android:state_enabled="false"/>
+</selector>

app/src/main/res/drawable/button_finish_background.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    
+    <solid android:color="#3498DB" />
+    
+    <corners android:radius="8dp" />
+    
+</shape>

app/src/main/res/drawable/button_inactive_background.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="#ECEFF0" />
+    <corners android:radius="8dp" />
+</shape>

app/src/main/res/drawable/button_secondary_background.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    
+    <solid android:color="#F5F5F5" />
+    
+    <stroke 
+        android:width="1dp"
+        android:color="#E0E0E0" />
+    
+    <corners android:radius="8dp" />
+    
+</shape>

app/src/main/res/drawable/card_background.xml

@@ -0,0 +1,6 @@
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="#3498DB" />
+    <corners android:radius="12dp" />
+    <stroke android:width="0dp" />
+</shape>

app/src/main/res/drawable/ic_backspace.xml

@@ -0,0 +1,10 @@
+<!-- res/drawable/icons/ic_backspace.xml -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#333333"
+        android:pathData="M22,3H7c-0.69,0 -1.23,0.35 -1.59,0.88L0,12l5.41,8.11c0.36,0.53 0.9,0.89 1.59,0.89h15c1.1,0 2,-0.9 2,-2V5c0,-1.1 -0.9,-2 -2,-2zM19,15.59L17.59,17 14,13.41 10.41,17 9,15.59 12.59,12 9,8.41 10.41,7 14,10.59 17.59,7 19,8.41 15.41,12 19,15.59z"/>
+</vector>

app/src/main/res/drawable/ic_check_circle.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorOnPrimary">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM10,17l-5,-5 1.41,-1.41L10,14.17l7.59,-7.59L19,8l-9,9z"/>
+</vector>

app/src/main/res/drawable/ic_notifications.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:fillColor="#FFFFFF"
+      android:pathData="M12,22c1.1,0 2,-0.9 2,-2h-4c0,1.1 0.9,2 2,2zM18,16v-5c0,-3.07 -1.64,-5.64 -4.5,-6.32L13.5,4c0,-0.83 -0.67,-1.5 -1.5,-1.5s-1.5,0.67 -1.5,1.5v0.68C7.63,5.36 6,7.92 6,11v5l-2,2v1h16v-1l-2,-2z"/>
+</vector>

app/src/main/res/drawable/ic_qr_code.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:fillColor="#FFFFFF"
+      android:pathData="M3,11h8L11,3L3,3v8zM5,5h4v4L5,9L5,5zM13,3v8h8L21,3h-8zM19,9h-4L15,5h4v4zM3,21h8v-8L3,13v8zM5,15h4v4L5,19v-4zM13,13v8h8v-8h-8zM19,19h-4v-4h4v4z"/>
+</vector>

app/src/main/res/drawable/search_background.xml

@@ -0,0 +1,5 @@
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#f5f5f5" />
+    <corners android:radius="4dp" />
+    <stroke android:width="1dp" android:color="#e0e0e0" />
+</shape>

app/src/main/res/drawable/search_button_background.xml

@@ -0,0 +1,4 @@
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#666666" />
+    <corners android:radius="4dp" />
+</shape>

app/src/main/res/drawable/timer_circle_background.xml

@@ -0,0 +1,5 @@
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#F0F0F0"/>
+    <corners android:radius="24dp"/>
+    <stroke android:width="1dp" android:color="#E0E0E0"/>
+</shape>