当我尝试以终止状态（当应用程序终止时）发送通知时，我的颤振 IOS 应用程序出现问题

Question

I am developing a flutter app which have push notification property , everything is working fine when app is on foreground or background notification coming continuously , but when app is on terminated state means when app not on background then notification is not coming why ?

and in android notification working properly in all states (Foreground ,Background,Kill State when app terminated)

This is my Payload for sending notification in IOS

{"to":"Device-token","content_available":true,"data":{"title":"Message","body":"Lorem Ipsum is simply dummy text of the printing and typesetting industry.","date":"Tue, 12 Jul 2022","time":"11:53","click_action":"FLUTTER_NOTIFICATION_CLICK","show_title":"Test Notification Title.","id":123,"checkdate":"2022-07-12","image":"https://crm.satoshifx.com/assets/images/satoshifx-notification.jpg"}}{"multicast_id":2817247928782996095,"success":1,"failure":0,"canonical_ids":0,"results":[{"message_id":"1657619612508875"}]}

Answer 1

You can test this on release mode;

In your main

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  
  FirebaseMessaging.onBackgroundMessage(_firebaseMessagingBackgroundHandler);
  await flutterLocalNotificationsPlugin
      .resolvePlatformSpecificImplementation<
          AndroidFlutterLocalNotificationsPlugin>()
      ?.createNotificationChannel(channel);

  await FirebaseMessaging.instance.setForegroundNotificationPresentationOptions(
    alert: true,
    badge: true,
    sound: true,
  );
  runApp(const RestartWidget(child: const MyApp()));
}

///Define this outside your main 

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