Allow background sound notification

lib/services/notification_service.dart

@@ -7,6 +7,10 @@ class NotificationService {
 
   static final FlutterLocalNotificationsPlugin _plugin =
       FlutterLocalNotificationsPlugin();
+  static const String _channelId = 'tasq_default_channel';
+  static const String _channelName = 'General';
+  static const String _highChannelId = 'tasq_custom_sound_channel_2';
+  static const String _highChannelName = 'High Priority';
 
   /// Call during app startup, after any necessary permissions have been
   /// granted.  The callback receives a [NotificationResponse] when the user
@@ -19,6 +23,38 @@ class NotificationService {
     );
     const iosSettings = DarwinInitializationSettings();
 
+    // Ensure the Android notification channel exists with sound and vibration
+    final androidImpl = _plugin
+        .resolvePlatformSpecificImplementation<
+          AndroidFlutterLocalNotificationsPlugin
+        >();
+    if (androidImpl != null) {
+      const channel = AndroidNotificationChannel(
+        _channelId,
+        _channelName,
+        description: 'General notifications for TasQ',
+        importance: Importance.defaultImportance,
+        playSound: true,
+        enableVibration: true,
+      );
+      const highChannel = AndroidNotificationChannel(
+        _highChannelId,
+        _highChannelName,
+        description: 'High priority notifications (sound + vibration)',
+        importance: Importance.max,
+        playSound: true,
+        enableVibration: true,
+        // 👇 Tell Android to use your specific file in the raw folder
+        sound: RawResourceAndroidNotificationSound('tasq_notification'),
+      );
+      try {
+        await androidImpl.createNotificationChannel(channel);
+      } catch (_) {}
+      try {
+        await androidImpl.createNotificationChannel(highChannel);
+      } catch (_) {}
+    }
+
     await _plugin.initialize(
       settings: const InitializationSettings(
         android: androidSettings,
@@ -36,12 +72,17 @@ class NotificationService {
     String? payload,
   }) async {
     const androidDetails = AndroidNotificationDetails(
-      'default_channel',
-      'General',
-      importance: Importance.high,
+      _highChannelId,
+      _highChannelName,
+      importance: Importance.max,
       priority: Priority.high,
+      playSound: true,
+      enableVibration: true,
+      sound: RawResourceAndroidNotificationSound('tasq_notification'),
+    );
+    const iosDetails = DarwinNotificationDetails(
+      sound: 'tasq_notification.wav',
     );
-    const iosDetails = DarwinNotificationDetails();
     await _plugin.show(
       id: id,
       title: title,