feat: system alert window permission

dialer/android/app/src/main/AndroidManifest.xml

@@ -13,6 +13,7 @@
     <uses-permission android:name="android.permission.ANSWER_PHONE_CALLS" />
     <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
 
     <application
         android:label="Icing Dialer"
@@ -22,7 +23,7 @@
         <activity
             android:name=".activities.MainActivity"
             android:exported="true"
-            android:launchMode="singleTop"
+            android:launchMode="singleTask"
             android:taskAffinity=""
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"

dialer/android/app/src/main/kotlin/com/icing/dialer/activities/MainActivity.kt

@@ -57,10 +57,12 @@ class MainActivity : FlutterActivity() {
                     "makeGsmCall" -> {
                         val phoneNumber = call.argument<String>("phoneNumber")
                         if (phoneNumber != null) {
-                            val success = CallService.makeGsmCall(this, phoneNumber)
-                            if (success) {
+                            try {
+                                val intent = Intent(Intent.ACTION_CALL, Uri.parse("tel:$phoneNumber"))
+                                startActivity(intent)
                                 result.success(mapOf("status" to "calling", "phoneNumber" to phoneNumber))
-                            } else {
+                            } catch (e: Exception) {
+                                Log.e(TAG, "Failed to make GSM call: ${e.message}")
                                 result.error("CALL_FAILED", "Failed to initiate call", null)
                             }
                         } else {
@@ -101,7 +103,7 @@ class MainActivity : FlutterActivity() {
             }
 
         MethodChannel(flutterEngine.dartExecutor.binaryMessenger, KEYSTORE_CHANNEL)
-            .setMethodCallHandler { call, result -> 
+            .setMethodCallHandler { call, result ->
                 KeystoreHelper(call, result).handleMethodCall()
             }
 
@@ -212,10 +214,13 @@ class MainActivity : FlutterActivity() {
         intent?.let {
             if (it.getBooleanExtra("isIncomingCall", false)) {
                 val phoneNumber = it.getStringExtra("phoneNumber")
-                Log.d(TAG, "Received incoming call intent for $phoneNumber")
-                MyInCallService.channel?.invokeMethod("incomingCallFromNotification", mapOf(
-                    "phoneNumber" to phoneNumber
-                ))
+                val showScreen = it.getBooleanExtra("showIncomingCallScreen", false)
+                Log.d(TAG, "Received incoming call intent for $phoneNumber, showScreen=$showScreen")
+                if (showScreen) {
+                    MyInCallService.channel?.invokeMethod("incomingCallFromNotification", mapOf(
+                        "phoneNumber" to phoneNumber
+                    ))
+                }
             }
         }
     }

dialer/android/app/src/main/kotlin/com/icing/dialer/services/MyInCallService.kt

@@ -39,7 +39,7 @@ class MyInCallService : InCallService() {
                 "state" to stateStr
             ))
             if (state == Call.STATE_RINGING) {
-                showIncomingCallNotification(call.details.handle.toString().replace("tel:", ""))
+                showIncomingCallScreen(call.details.handle.toString().replace("tel:", ""))
             } else if (state == Call.STATE_DISCONNECTED || state == Call.STATE_DISCONNECTING) {
                 Log.d(TAG, "Call ended: ${call.details.handle}")
                 channel?.invokeMethod("callEnded", mapOf("callId" to call.details.handle.toString()))
@@ -64,7 +64,7 @@ class MyInCallService : InCallService() {
             "state" to stateStr
         ))
         if (stateStr == "ringing") {
-            showIncomingCallNotification(call.details.handle.toString().replace("tel:", ""))
+            showIncomingCallScreen(call.details.handle.toString().replace("tel:", ""))
         }
         call.registerCallback(callCallback)
     }
@@ -84,10 +84,19 @@ class MyInCallService : InCallService() {
         channel?.invokeMethod("audioStateChanged", mapOf("route" to state.route))
     }
 
-    private fun showIncomingCallNotification(phoneNumber: String) {
-        val notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+    private fun showIncomingCallScreen(phoneNumber: String) {
+        // Launch MainActivity with intent to show IncomingCallPage
+        val intent = Intent(this, MainActivity::class.java).apply {
+            flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TOP
+            putExtra("phoneNumber", phoneNumber)
+            putExtra("isIncomingCall", true)
+            putExtra("showIncomingCallScreen", true) // New flag to signal immediate UI
+        }
+        startActivity(intent)
+        Log.d(TAG, "Launched MainActivity to show incoming call screen for $phoneNumber")
 
-        // Create notification channel (Android 8.0+)
+        // Optional: Keep notification as a fallback
+        val notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
             val channel = NotificationChannel(
                 NOTIFICATION_CHANNEL_ID,
@@ -101,20 +110,11 @@ class MyInCallService : InCallService() {
             notificationManager.createNotificationChannel(channel)
         }
 
-        // Intent to open MainActivity with phone number
-        val intent = Intent(this, MainActivity::class.java).apply {
-            flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
-            putExtra("phoneNumber", phoneNumber)
-            putExtra("isIncomingCall", true)
-        }
         val pendingIntent = PendingIntent.getActivity(
-            this,
-            0,
-            intent,
+            this, 0, intent,
             PendingIntent.FLAG_UPDATE_CURRENT or (if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) PendingIntent.FLAG_IMMUTABLE else 0)
         )
 
-        // Build notification
         val notification = NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID)
             .setSmallIcon(android.R.drawable.ic_dialog_alert) // Replace with your app icon
             .setContentTitle("Incoming Call")
@@ -122,7 +122,7 @@ class MyInCallService : InCallService() {
             .setPriority(NotificationCompat.PRIORITY_HIGH)
             .setContentIntent(pendingIntent)
             .setAutoCancel(true)
-            .setOngoing(true) // Keep visible until call ends
+            .setOngoing(true)
             .build()
 
         notificationManager.notify(NOTIFICATION_ID, notification)

dialer/lib/services/call_service.dart

@@ -117,7 +117,7 @@ class CallService {
       print('CallService: Making GSM call to $phoneNumber');
       final result = await _channel.invokeMethod('makeGsmCall', {"phoneNumber": phoneNumber});
       print('CallService: makeGsmCall result: $result');
-      final resultMap = Map<String, dynamic>.from(result as Map); // Safe cast
+      final resultMap = Map<String, dynamic>.from(result as Map);
       if (resultMap["status"] != "calling") {
         ScaffoldMessenger.of(context).showSnackBar(
           SnackBar(content: Text("Failed to initiate call")),
@@ -138,7 +138,7 @@ class CallService {
       print('CallService: Hanging up call');
       final result = await _channel.invokeMethod('hangUpCall');
       print('CallService: hangUpCall result: $result');
-      final resultMap = Map<String, dynamic>.from(result as Map); // Safe cast
+      final resultMap = Map<String, dynamic>.from(result as Map);
       if (resultMap["status"] != "ended") {
         ScaffoldMessenger.of(context).showSnackBar(
           SnackBar(content: Text("Failed to end call")),