Untitled

import 'package:firebase_core/firebase_core.dart';
import 'package:firebase_messaging/firebase_messaging.dart';
import 'package:flutter/material.dart';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';


 String? token;

  Future<void> _firebaseMessagingBackgroundHandler(RemoteMessage message) async{
    await Firebase.initializeApp();
  }

  const AndroidNotificationChannel channel = AndroidNotificationChannel(
    'high_importance_channel',
    'High Importance Notifications',
    description: 'This channel is used for important notifications.',
    importance: Importance.high,
  );

void main() async {
  // // Initialize Firebase
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();

  FirebaseMessaging.onBackgroundMessage(_firebaseMessagingBackgroundHandler);
  await FlutterLocalNotificationsPlugin().resolvePlatformSpecificImplementation<AndroidFlutterLocalNotificationsPlugin>()?.createNotificationChannel(channel);
  await FirebaseMessaging.instance.setForegroundNotificationPresentationOptions(
    alert: true,
    badge: true,
    sound: true,
  );
  runApp(MyApp());
}

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

class _MyAppState extends State<MyApp> {

  @override
  void initState() {
    super.initState();

    // Initialize local notifications
    var initializationSettingsAndroid =
        const AndroidInitializationSettings('@mipmap/ic_launcher');
    var initializationSettings =
        InitializationSettings(android: initializationSettingsAndroid);
    FlutterLocalNotificationsPlugin().initialize(initializationSettings);

    // Set up message handling
    FirebaseMessaging.onMessage.listen((RemoteMessage message) {
      RemoteNotification? notification = message.notification;
      AndroidNotification? android = message.notification?.android;
      if (notification != null && android != null) {
        FlutterLocalNotificationsPlugin().show(
          notification.hashCode,
          notification.title,
          notification.body,
          NotificationDetails(
            android: AndroidNotificationDetails(
              'high_importance_channel',
              'High Importance Notifications',
              channelDescription:
                  'This channel is used for important notifications.',
              importance: Importance.high,
              color: Colors.blue,
              icon: '@mipmap/ic_launcher',
            ),
          ),
        );
      }
    });

    FirebaseMessaging.onMessageOpenedApp.listen((RemoteMessage message) {
      RemoteNotification? notification = message.notification;
      AndroidNotification? android = message.notification?.android;
      if (notification != null && android != null) {
        showDialog(
          context: context,
          builder: (_) {
            return AlertDialog(
              title: Text(notification.title ?? ''),
              content: SingleChildScrollView(
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [Text(notification.body ?? '')],
                ),
              ),
            );
          },
        );
      }
    });

    // Get FCM token
    getToken();
  }

  // Function to get FCM token
  getToken() async {
    token = await FirebaseMessaging.instance.getToken();
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('JURNAL11_1302204029'),
        ),
        body: Center(
          child: Text(''),
        ),
      ),
    );
  }
}