import 'package:flutter_local_notifications/flutter_local_notifications.dart';
import 'firebase_options.dart';
import 'permissions.dart';
import 'package:firebase_core/firebase_core.dart';
import 'package:firebase_messaging/firebase_messaging.dart';
FirebaseMessaging messaging = FirebaseMessaging.instance;
Future<void> _firebaseMessagingBackgroundHandler(RemoteMessage message) async {
await Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform);
await setupFlutterNotifications();
showFlutterNotification(message);
print('Handling a background message ${message.messageId}');
}
late AndroidNotificationChannel channel;
bool isFlutterLocalNotificationsInitialized = false;
Future<void> setupFlutterNotifications() async {
if (isFlutterLocalNotificationsInitialized) {return;}
channel = const AndroidNotificationChannel(
'high_importance_channel', // id
'High Importance Notifications', // title
description: 'High Importance Notifications', // description
importance: Importance.high,
);
flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();
await flutterLocalNotificationsPlugin.resolvePlatformSpecificImplementation<AndroidFlutterLocalNotificationsPlugin>()?.createNotificationChannel(channel);
await FirebaseMessaging.instance.setForegroundNotificationPresentationOptions(alert: true, badge: true, sound: true,);
isFlutterLocalNotificationsInitialized = true;
}
void showFlutterNotification(RemoteMessage message) {
RemoteNotification? notification = message.notification;
AndroidNotification? android = message.notification?.android;
if (notification != null && android != null && !kIsWeb) {
print("Пришло ПУШ:");
print(notification.title);
flutterLocalNotificationsPlugin.show(
notification.hashCode,
notification.title,
notification.body,
NotificationDetails(
android: AndroidNotificationDetails(
channel.id,
channel.name,
channelDescription: channel.description,
icon: 'launch_background',
),
),
);
}
}
late FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin;
Future<void> main() async {
WidgetsFlutterBinding.ensureInitialized(); // требуется для PUSH сервиса
// инициализация PUSH уведомлений
try {
await Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform);
} catch (e) {}
FirebaseMessaging.onBackgroundMessage(_firebaseMessagingBackgroundHandler);
await setupFlutterNotifications();
// получаем токен уведомлений
FirebaseMessaging.instance.getToken().then((token) {
print("Token: $token"); // Выплюнем токен в консольку
});
runApp(MyApp());
}
...
...
@override
Widget build(BuildContext context) {
String? _token;
String? initialMessage;
bool _resolved = false;
FirebaseMessaging.instance.getInitialMessage().then(
value) => () {
_resolved = true;
initialMessage = value?.data.toString();
},
);
FirebaseMessaging.onMessage.listen(showFlutterNotification); // показ PUSH уведомлений при открытом приложении
FirebaseMessaging.onMessageOpenedApp.listen((RemoteMessage message) {
print('A new onMessageOpenedApp event was published!');
});
....
....
