feat: open dialer on top of locked screen when incoming call

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

@@ -28,7 +28,9 @@
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:hardwareAccelerated="true"
-            android:windowSoftInputMode="adjustResize">
+            android:windowSoftInputMode="adjustResize"
+            android:showWhenLocked="true"
+            android:turnScreenOn="true">
             <!-- Specifies an Android theme to apply to this Activity as soon as
                  the Android process has started. This theme is visible to the user
                  while the Flutter UI initializes. After that, this theme continues

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

@@ -9,6 +9,8 @@ import android.database.Cursor
 import android.net.Uri
 import android.os.Build
 import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
 import android.provider.CallLog
 import android.telecom.TelecomManager
 import android.util.Log
@@ -27,6 +29,7 @@ class MainActivity : FlutterActivity() {
     private val TAG = "MainActivity"
     private val REQUEST_CODE_SET_DEFAULT_DIALER = 1001
     private val REQUEST_CODE_CALL_LOG_PERMISSION = 1002
+    private var pendingIncomingCall: Pair<String?, Boolean>? = null // Store incoming call data
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -57,12 +60,10 @@ class MainActivity : FlutterActivity() {
                     "makeGsmCall" -> {
                         val phoneNumber = call.argument<String>("phoneNumber")
                         if (phoneNumber != null) {
-                            try {
-                                val intent = Intent(Intent.ACTION_CALL, Uri.parse("tel:$phoneNumber"))
-                                startActivity(intent)
+                            val success = CallService.makeGsmCall(this, phoneNumber) // Use CallService
+                            if (success) {
                                 result.success(mapOf("status" to "calling", "phoneNumber" to phoneNumber))
-                            } catch (e: Exception) {
-                                Log.e(TAG, "Failed to make GSM call: ${e.message}")
+                            } else {
                                 result.error("CALL_FAILED", "Failed to initiate call", null)
                             }
                         } else {
@@ -98,6 +99,18 @@ class MainActivity : FlutterActivity() {
                             result.error("ANSWER_FAILED", "No active call to answer", null)
                         }
                     }
+                    "flutterReady" -> { // New method to signal Flutter is initialized
+                        Log.d(TAG, "Flutter is ready")
+                        pendingIncomingCall?.let { (phoneNumber, showScreen) ->
+                            if (showScreen) {
+                                MyInCallService.channel?.invokeMethod("incomingCallFromNotification", mapOf(
+                                    "phoneNumber" to phoneNumber
+                                ))
+                                pendingIncomingCall = null // Clear after handling
+                            }
+                        }
+                        result.success(true)
+                    }
                     else -> result.notImplemented()
                 }
             }
@@ -217,9 +230,15 @@ class MainActivity : FlutterActivity() {
                 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
-                    ))
+                    if (MyInCallService.channel != null) {
+                        MyInCallService.channel?.invokeMethod("incomingCallFromNotification", mapOf(
+                            "phoneNumber" to phoneNumber
+                        ))
+                    } else {
+                        // Store the intent data if Flutter isn't ready yet
+                        pendingIncomingCall = Pair(phoneNumber, true)
+                        Log.d(TAG, "Flutter channel not ready, storing pending call: $phoneNumber")
+                    }
                 }
             }
         }

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

@@ -85,17 +85,15 @@ class MyInCallService : InCallService() {
     }
 
     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
+            flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP
             putExtra("phoneNumber", phoneNumber)
             putExtra("isIncomingCall", true)
-            putExtra("showIncomingCallScreen", true) // New flag to signal immediate UI
+            putExtra("showIncomingCallScreen", true)
         }
         startActivity(intent)
         Log.d(TAG, "Launched MainActivity to show incoming call screen for $phoneNumber")
 
-        // 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(
@@ -116,7 +114,7 @@ class MyInCallService : InCallService() {
         )
 
         val notification = NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID)
-            .setSmallIcon(android.R.drawable.ic_dialog_alert) // Replace with your app icon
+            .setSmallIcon(android.R.drawable.ic_dialog_alert)
             .setContentTitle("Incoming Call")
             .setContentText("Call from $phoneNumber")
             .setPriority(NotificationCompat.PRIORITY_HIGH)

dialer/lib/services/call_service.dart

@@ -55,6 +55,10 @@ class CallService {
           break;
       }
     });
+
+    // Signal Flutter is ready
+    WidgetsFlutterBinding.ensureInitialized();
+    _channel.invokeMethod("flutterReady");
   }
 
   void _navigateToCallPage(BuildContext context) {