[firebase_messaging] Background Message Handler not called #1590

mahmoud0123 · 2019-12-10T09:09:48Z

Hello, Iam developing an app for pushing notifications from fcm, when the app in background or terminated and receive notification i need to save the data of this notification local in (sqlit), without click on the notification or re-open the app gain. the background message handler not called or read the message when the app in background. help please.

NotificationHandler.dart

import 'package:firebase_messaging/firebase_messaging.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
import 'package:path_provider/path_provider.dart';
import 'package:http/http.dart' as http;

FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
new FlutterLocalNotificationsPlugin();

Future<dynamic> myBackgroundMessageHandler(Map<String, dynamic> message) async {
  print("onBackgroundMessage: $message");
  //_showBigPictureNotification(message);
  return Future<void>.value();
}


Future onSelectNotification(String payload) async {

}

class NotificationHandler {
  FirebaseMessaging _fcm = FirebaseMessaging();
  StreamSubscription iosSubscription;
  static final NotificationHandler _singleton =
  new NotificationHandler._internal();

  factory NotificationHandler() {
    return _singleton;
  }
  NotificationHandler._internal();

  initializeFcmNotification() async {
    var initializationSettingsAndroid =
    new AndroidInitializationSettings('mipmap/ic_launcher');
    var initializationSettingsIOS = new IOSInitializationSettings(
        onDidReceiveLocalNotification: onDidReceiveLocalNotification);
    var initializationSettings = new InitializationSettings(
        initializationSettingsAndroid, initializationSettingsIOS);
    flutterLocalNotificationsPlugin.initialize(initializationSettings,
        onSelectNotification: onSelectNotification);

    if (Platform.isIOS) {
      iosSubscription = _fcm.onIosSettingsRegistered.listen((data) {
        // save the token  OR subscribe to a topic here
      });

      _fcm.requestNotificationPermissions(IosNotificationSettings());
    } else {
      _saveDeviceToken();
    }

    _fcm.configure(
      onMessage: (Map<String, dynamic> message) async {
        print(message);
      },
      onBackgroundMessage:
      TargetPlatform.iOS == 'ios' ? null : myBackgroundMessageHandler,
      onLaunch: (Map<String, dynamic> message) async {
        print("onLaunch: $message");
      },
      onResume: (Map<String, dynamic> message) async {
        print("onResume: $message");
      },
    );
  }

  /// Get the token, save it to the database for current user
  _saveDeviceToken() async {
    String fcmToken = await _fcm.getToken();
    print("FCM_TOKEN: $fcmToken");
  }

  Future<void> onDidReceiveLocalNotification(
      int id, String title, String body, String payload) async {
    // display a dialog with the notification details, tap ok to go to another page
  }
}

The text was updated successfully, but these errors were encountered:

iapicca · 2019-12-10T12:18:48Z

Hi @mahmoud0123
can you please provide your updated flutter doctor -v?
Thank you

mahmoud0123 · 2019-12-10T13:54:25Z

Hi @mahmoud0123
can you please provide your updated flutter doctor -v?
Thank you

Hi @iapicca thanks for your response here is flutter doctor

Mahmouds-MacBook-Pro:~ mahmoudabdelaziz$ flutter doctor -v
[✓] Flutter (Channel stable, v1.9.1+hotfix.4, on Mac OS X 10.14.4 18E226, locale en-US)
• Flutter version 1.9.1+hotfix.4 at /Users/mahmoudabdelaziz/Desktop/flutter
• Framework revision cc949a8e8b (2 months ago), 2019-09-27 15:04:59 -0700
• Engine revision b863200c37
• Dart version 2.5.0

[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
• Android SDK at /Users/mahmoudabdelaziz/Library/Android/sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-28, build-tools 28.0.3
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1343-b01)
• All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 11.0)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 11.0, Build version 11A420a
• CocoaPods version 1.8.4

[!] Android Studio (version 3.4)
• Android Studio at /Applications/Android Studio.app/Contents
✗ Flutter plugin not installed; this adds Flutter specific functionality.
✗ Dart plugin not installed; this adds Dart specific functionality.
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1343-b01)

[✓] IntelliJ IDEA Community Edition (version 2018.3.3)
• IntelliJ at /Applications/IntelliJ IDEA CE.app
• Flutter plugin version 31.3.4
• Dart plugin version 183.5153.38

[✓] Connected device (1 available)
• Android SDK built for x86 • emulator-5554 • android-x86 • Android 9 (API 28) (emulator)

! Doctor found issues in 1 category.

LinusU · 2019-12-11T15:08:03Z

I have the same problem, and my setup is very similar. Just trying to print something in onBackgroundMesssage so that I can see it in logcat.

I can see the notification coming in and Android starting the app in logcat:

12-11 14:59:47.098  1926  1943 I ActivityManager: Start proc 18876:com.foo.myapp/u0a88 for broadcast com.foo.myapp/com.google.firebase.iid.FirebaseInstanceIdReceiver`

Here is my flutter doctor:

[✓] Flutter (Channel stable, v1.9.1+hotfix.6, on Mac OS X 10.15.1 19B88, locale en-SE)
    • Flutter version 1.9.1+hotfix.6 at /Users/linus/coding/flutter
    • Framework revision 68587a0916 (3 months ago), 2019-09-13 19:46:58 -0700
    • Engine revision b863200c37
    • Dart version 2.5.0

[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.1)
    • Android SDK at /Users/linus/Library/Android/sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-29, build-tools 29.0.1
    • ANDROID_HOME = /Users/linus/Library/Android/sdk
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b49-5587405)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 11.2.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 11.2.1, Build version 11B500
    • CocoaPods version 1.8.4

[✓] Android Studio (version 3.5)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin version 42.0.1
    • Dart plugin version 191.8593
    • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b49-5587405)

[✓] VS Code (version 1.40.2)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.7.1

[✓] Connected device (1 available)
    • AOSP on IA Emulator • emulator-5554 • android-x86 • Android 9 (API 28) (emulator)

• No issues found!

iapicca · 2019-12-27T13:22:26Z

#125

Eddydpyl · 2019-12-27T18:10:59Z

Similar thing happening to me (#1709), but it my case, the method is called as long as I don't reopen my app once it has been installed. That is, once the app is installed and launched for the first time, if I go ahead and close it, onBackgroundMessage will be called when I send a data message. But if I reopen the app, and then close it once again, it will no longer be called.

phodonou · 2019-12-28T16:18:32Z

This might be an issue related to flutter_local_notification package:
MaikuB/flutter_local_notifications#111

Eddydpyl · 2019-12-28T18:10:53Z

This might be an issue related to flutter_local_notification package:
MaikuB/flutter_local_notifications#111

Doesn't seem to be the case for me (I've checked just now). I have noticed something interesting though: The messages arrive just fine when the application is completely closed, but onBackgroundMessage won't trigger when the app is still running in the background. What I mentioned in #1709 applies to this new observation. I'll make myself a bit clearer:

Launch the app for the first time, and move it to the background. Works as expected.
Remove the app from the background. Still works as expected.
Launch the app, and move it to the background. The callback no longer runs.
Remove the app from the background. Works as expected.
From this point onward, onBackgroundMessage will not be called when the app is running in the background, but it will continue to be called when it has been closed.

Eddydpyl · 2020-01-07T08:24:50Z

I've made a pull request that solves the issue for me (#1774), can anyone else confirm?

tigertore · 2020-01-07T13:06:22Z

Yes, I can confirm that your change fixes the problem.
I have tested it several times and it works every time now.
My scenario:

App is not running.
We send a FCM data push message
App starts up in background via onBackgroundMessage() and adds a notifcation to the status bar.
User clicks notification and which starts the flutter app.
User puts app in background
We send a new FCM data push message

The message in point 6 was lost before your fix.
Now we receive it every time.

cuijinfeng68 · 2020-01-08T20:32:24Z

Yes, I can confirm that your change fixes the problem.
I have tested it several times and it works every time now.
My scenario:

App is not running.

We send a FCM data push message

App starts up in background via onBackgroundMessage() and adds a notifcation to the status bar.

User clicks notification and which starts the flutter app.

User puts app in background

We send a new FCM data push message

The message in point 6 was lost before your fix.
Now we receive it every time.

How to use the last version?

tigertore · 2020-01-09T07:13:29Z

#First clone Eddy's repo:
git clone https://github.com/Eddydpyl/flutterfire.git

#Then point to this workspace, in pubspec.yaml:

dependencies:

firebase_messaging:
path: ../../../tmp/flutterfire/packages/firebase_messaging/

Jackcui68 · 2020-01-09T21:33:34Z

#First clone Eddy's repo:
git clone https://github.com/Eddydpyl/flutterfire.git

#Then point to this workspace, in pubspec.yaml:

dependencies:

firebase_messaging:
path: ../../../tmp/flutterfire/packages/firebase_messaging/

I have tested it, onResume,On onLaunch is ok, but on background doesn't work.

[✓] Flutter (Channel stable, v1.12.13+hotfix.5, on Mac OS X 10.14.6 18G2022, locale zh-Hans-US)
• Flutter version 1.12.13+hotfix.5 at /Users/*****Desktop/flutter
• Framework revision 27321ebbad (4 weeks ago), 2019-12-10 18:15:01 -0800
• Engine revision 2994f7e1e6
• Dart version 2.7.0

[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)

• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-29, build-tools 28.0.3
• ANDROID_HOME = /Users/jackcui/Library/Android/sdk
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b49-5587405)
• All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 11.3)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 11.3, Build version 11C29
• CocoaPods version 1.8.4

[✓] Android Studio (version 3.5)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 42.1.1
• Dart plugin version 191.8593
• Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b49-5587405)

[✓] Connected device (1 available)
• HUAWEI CAZ AL10 • XPUDU17302006263 • android-arm64 • Android 7.0 (API 24)

• No issues found!

t0mHagen · 2020-01-10T08:44:18Z

I've made a pull request that solves the issue for me (#1774), can anyone else confirm?

Awesome! I ran into exactly the same issue. Glad I came across your fix, much appreciated.

Eddydpyl · 2020-01-10T12:15:02Z

@Jackcui68 this is just a shot in the dark, but maybe the issue is with how your device handles background processes? Check out this website: https://dontkillmyapp.com/

sebbyjp · 2020-01-26T23:46:31Z

@Eddydpyl Does this solution only work for android or IOS as well...?

Eddydpyl · 2020-01-27T16:31:20Z

@dazednconfusing it only fixes the issue in Android, and iOS can't process a data message when the app is not running, so it really isn't as useful. As far as I know, the onMessage callback is the one that should be triggered in iOS when receiving a data message, as long as the app is running. If it's not, the message should be queued to be received once the app is running.

vov4ik08 · 2020-03-18T09:02:59Z

Hello. Any updates? for me call onBackgroundMessage does not work too. I am use for test real device with android 9

braysonjohn148 · 2020-03-18T15:40:27Z

Hello. Any updates? for me call onBackgroundMessage does not work too. I am use for test real device with android 9

me too. if somebody gets something please

vov4ik08 · 2020-03-19T07:38:22Z

Hello all. I realized what the problem is. For work onBackgroundMessage we must send notification only with param 'data' and without param notification. Php example code:

$push = new PushNotification('fcm');
   $push->setMessage([

        'data' => [
            'extraPayLoad1' => 'value1',
            'extraPayLoad2' => 'value2'
        ]
    ])

        ->setApiKey('apikey')
        ->setDevicesToken(['device token'])
        ->send();

This notification do not show but onBackgroundMessage will work. If you want show notification and run onBackgroundMessage you must send 2 notification from server, first as example above and second as

$push->setMessage([
        'notification' => [
            'title' => 'This is the title',
            'body' => 'This is the message',
            'sound' => 'default',
            'priority' => 'high',


        ],
       
    ])
     ->setApiKey('apikey')
        ->setDevicesToken(['device token'])
        ->send();

braysonjohn148 · 2020-03-20T11:29:14Z

I tried data but still doesn't work, this is my index.js

exports.messageNotifications = functions.firestore.document('notification/{post}').onCreate(async (snapshot, context) => {

const posts = snapshot.data();
const payload = {
    notification: {
        title: 'New Order..!',
        body: `${posts.message} `,
        icon: 'notification_icon',
        click_action: 'FLUTTER_NOTIFICATION_CLICK' // required only for onResume or onLaunch callbacks
    },
    data: {
        title: `New message from ${postss.name} `,
        body: `${postss.message} `,
        icon: 'notification_icon',
        click_action: 'FLUTTER_NOTIFICATION_CLICK' // required only for onResume or onLaunch callbacks
    }
};

vov4ik08 · 2020-03-20T14:21:16Z

notification: {
title: 'New Order..!',
body: ${posts.message} ,
icon: 'notification_icon',
click_action: 'FLUTTER_NOTIFICATION_CLICK' // required only for onResume or onLaunch callbacks
},

Try remove this
notification: {
title: 'New Order..!',
body: ${posts.message} ,
icon: 'notification_icon',
click_action: 'FLUTTER_NOTIFICATION_CLICK' // required only for onResume or onLaunch callbacks
},

braysonjohn148 · 2020-03-20T14:23:53Z

But how will my notification be handled to the notification tray... for the user to get a notification. Please help

vov4ik08 · 2020-03-20T14:25:57Z

But how will my notification be handled to the notification tray... for the user to get a notification. Please help

If you need work background and show notification, you must send 2 notification, first with

notification: {
title: 'New Order..!',
body: ${posts.message} ,
icon: 'notification_icon',
click_action: 'FLUTTER_NOTIFICATION_CLICK' // required only for onResume or onLaunch callbacks
},

and without data and second with data and without notification arrays

a-chris · 2020-04-13T16:41:04Z

Any news? I've tried with Notification message and Data Message but the onBackgroundMessage callback is not called when the app has been terminated

Eddydpyl · 2020-04-13T17:44:35Z

@a-chris try my pull request (#1774). If your issue is with iOS, know that the behaviour is different than in Android: Data messages sent when the app is terminated will be received when the app is launched again, through the onMessage callback I believe.

Salakar · 2020-05-12T13:27:55Z

@Eddydpyl thank you for PR #1774 - I've gone ahead and merged this and firebase_messaging version 6.0.15 has been published.

Will go ahead and close this issue now - thanks.

iapicca changed the title ~~Background Message Handler not called when the app in background~~ [firebase_messaging] Background Message Handler not called Dec 10, 2019

iapicca added blocked: customer-response Waiting for customer response, e.g. more information was requested. type: bug Something isn't working labels Dec 10, 2019

iapicca removed the blocked: customer-response Waiting for customer response, e.g. more information was requested. label Dec 12, 2019

iapicca mentioned this issue Dec 12, 2019

[firebase_messaging] onLaunch and onResume not called just on iOS #1619

Closed

This was referenced Dec 27, 2019

[firebase_messaging] when onBackgroundMessage is called ? #1660

Closed

[firebase_messaging] onBackgroundMessage stops triggering after app restart. #1709

Closed

iapicca added the impact: crowd Affects many people, though not necessarily a specific customer with an assigned label. (P2) label Dec 27, 2019

Eddydpyl mentioned this issue Jan 7, 2020

fix(firebase_messaging): ensure plugin callback registered #1774

Merged

13 tasks

iapicca mentioned this issue Jan 10, 2020

[<FIREBASE_MESSAGING>] <Do not show push notification on IOS when app is background or terminated> #1790

Closed

This was referenced Jan 21, 2020

[FireBase Messaging] iOS only receiving messages in foreground aka. onResume and onLaunch not executing #1799

Closed

Firebase Message can't receive notification background from firebase console IOS 13 #1812

Closed

fxsalazar mentioned this issue Feb 6, 2020

[firebase_messaging]onLaunch is not fired and can't save dismissed notifications #1838

Closed

MaikuB mentioned this issue Feb 15, 2020

No more notifications after launch an APP via onSelectNotification MaikuB/flutter_local_notifications#473

Closed

TahaTesser mentioned this issue Mar 9, 2020

OnBackgroundHandler is not working when app is terminated #2139

Closed

iapicca mentioned this issue Mar 20, 2020

[Service took too long to process intent] FirebaseMessaging #2181

Closed

kirstywilliams added the plugin: messaging label Apr 21, 2020

Salakar closed this as completed May 12, 2020

firebase locked and limited conversation to collaborators Aug 6, 2020

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[firebase_messaging] Background Message Handler not called #1590

[firebase_messaging] Background Message Handler not called #1590

mahmoud0123 commented Dec 10, 2019 •

edited by iapicca

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iapicca commented Dec 10, 2019

mahmoud0123 commented Dec 10, 2019 •

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LinusU commented Dec 11, 2019

iapicca commented Dec 27, 2019

Eddydpyl commented Dec 27, 2019

phodonou commented Dec 28, 2019

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Eddydpyl commented Jan 7, 2020

tigertore commented Jan 7, 2020

cuijinfeng68 commented Jan 8, 2020

tigertore commented Jan 9, 2020

Jackcui68 commented Jan 9, 2020

t0mHagen commented Jan 10, 2020

Eddydpyl commented Jan 10, 2020

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Salakar commented May 12, 2020

[firebase_messaging] Background Message Handler not called #1590

[firebase_messaging] Background Message Handler not called #1590

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