Push Notifications

dependencies:
  firebase_messaging: 5.1.2
  flutter_local_notifications: 0.8.0

import 'package:firebase_messaging/firebase_messaging.dart';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  final FirebaseMessaging _firebaseMessaging = FirebaseMessaging();
  final FlutterLocalNotificationsPlugin _localNotifications = 
      FlutterLocalNotificationsPlugin();
  
  @override
  void initState() {
    super.initState();
    _configureNotifications();
  }
  
  void _configureNotifications() async {
    // Initialize local notifications
    const androidSettings = AndroidInitializationSettings('@drawable/notification_icon');
    const iosSettings = IOSInitializationSettings(
      requestSoundPermission: true,
      requestBadgePermission: true,
      requestAlertPermission: true,
    );
    
    const initSettings = InitializationSettings(
      android: androidSettings,
      iOS: iosSettings,
    );
    
    await _localNotifications.initialize(
      initSettings,
      onSelectNotification: _onNotificationTapped,
    );
    
    // Configure Firebase Messaging
    _firebaseMessaging.configure(
      onMessage: (Map<String, dynamic> message) async {
        print("onMessage: $message");
        _showLocalNotification(message);
      },
      onLaunch: (Map<String, dynamic> message) async {
        print("onLaunch: $message");
        _handleNotificationTap(message);
      },
      onResume: (Map<String, dynamic> message) async {
        print("onResume: $message");
        _handleNotificationTap(message);
      },
    );
    
    // Request iOS permissions
    _firebaseMessaging.requestNotificationPermissions(
      const IosNotificationSettings(
        sound: true,
        badge: true,
        alert: true,
      ),
    );
    
    // Get FCM token
    String token = await _firebaseMessaging.getToken();
    print("FCM Token: $token");
    
    // Save token to Firebase for this user
    _saveTokenToDatabase(token);
  }
}