[firebase_messaging] clear intent after onLaunch invoked on Android

[ekasetiawans]

I launch application and route to another page (not main page) by tapping a notification successfully. But I have problem, after I finished that page and return to main page and then close my application by pressing back button. Then I return to application by pressing recents button (task manager). My application will reopened the page with latest notification data.

To Reproduce
Steps to reproduce the behavior:

1. Let application in background
2. send a notification
3. that will show another page when onLaunch or onResume invoked after notification tapped
4. return back to main page of your application
5. press back button or close application (dont close from task manager)
6. open application from task manager (not from home screen)
7. application will shows just like step 3.

Expected behavior
Just clear intent data after onLaunch or onResume invoked.

Additional context
I have try to add clearTaskOnLaunch in AndroidManifest.xml but it's not work.

[iapicca]

Hi @ekasetiawans
can you please provide your flutter doctor -v ,
your flutter run --verbose
and if possible a reproducible minimal code sample.
Thank you

[VladimirKalinichenko]

Hello @iapicca,
I am having similar issue. Here is my flutter doctor:

[✓] Flutter (Channel unknown, v1.9.1+hotfix.6, on Mac OS X 10.14.4 18E226,
locale en-UA)
[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
[✓] Xcode - develop for iOS and macOS (Xcode 11.3)
[✓] Android Studio (version 3.5)
[✓] Connected device (1 available)

• No issues found!

---

I am using:
firebase_core: "0.4.0+9"
firebase_messaging: "5.1.8"

Android API 28

---

Sample code:

import 'dart:async';
import 'package:firebase_messaging/firebase_messaging.dart';
import 'package:flutter/material.dart';
import 'package:url_launcher/url_launcher.dart';

void main() => runApp(App());

class App extends StatefulWidget {
  @override
  _AppState createState() => _AppState();
}

class _AppState extends State<App> {
  @override
  void initState() {
    FirebaseMessaging().onTokenRefresh.listen((fcmToken) {
      print('token: $fcmToken');
    });
    FirebaseMessaging().configure(
      onLaunch: (Map<String, dynamic> message) {
        handleAppLaunchFromPush(message);
      },
    );
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(home: Scaffold(body: Center(child: const Text('The app'))));
  }
}

Future<void> handleAppLaunchFromPush(Map message) async {
  const url = 'https://github.com/FirebaseExtended/flutterfire/issues/1887';
  await launch(url, forceSafariVC: false, forceWebView: false);
}

---

Steps to reproduce:

1. Make sure app is not in memory;
2. Open app from push notification;
3. Close app by tapping back button;
4. Use overview button to open the app (by double tapping or tapping app, not app icon - opening app by tapping app icon will not reproduce the bug);
5. (Optional) Repeat

Expected behaviour:
App opens external browser when app is launched from push notification. Only once and only when open from push notification.

Actual behaviour:
App opens external browser when launched from push notification and keeps opening external browser every time app is open from android apps overview. In other words: Firebase's onLaunch method is called multiple times for one push notification open action.

[ekasetiawans]

Hi @ekasetiawans
can you please provide your flutter doctor -v ,
your flutter run --verbose
and if possible a reproducible minimal code sample.
Thank you

here is my flutter doctor :

ekasetiawans@MacBookPro retgoo_mobile_portal % flutter doctor -v
[✓] Flutter (Channel beta, v1.14.6, on Mac OS X 10.15.3 19D76, locale en-ID)
    • Flutter version 1.14.6 at /Users/ekasetiawans/Development/flutter
    • Framework revision fabeb2a16f (13 days ago), 2020-01-28 07:56:51 -0800
    • Engine revision c4229bfbba
    • Dart version 2.8.0 (build 2.8.0-dev.5.0 fc3af737c7)

 
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
    • Android SDK at /Users/ekasetiawans/Library/Android/sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-29, build-tools 29.0.2
    • ANDROID_HOME = /Users/ekasetiawans/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 11.3.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 11.3.1, Build version 11C504
    • CocoaPods version 1.8.4

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 3.5)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin version 43.0.1
    • Dart plugin version 191.8593
    • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b49-5587405)

[✓] VS Code (version 1.42.0)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.8.1

[✓] Connected device (2 available)
    • Chrome     • chrome     • web-javascript • Google Chrome 80.0.3987.87
    • Web Server • web-server • web-javascript • Flutter Tools

• No issues found!

@VladimirKalinichenko sample is enough to reproduce the problem

[MaikuB]

I submitted a PR for this

[joharputr]

i have this issue too

[billbull21]

I submitted a PR for this

have you fixed this bug? because, i still facing this issue. i want to clear intent data from firebase. because the data still firing even i have use it.

[MaikuB]

@billbull21 the PR didn't get merged and got closed as there's a prerelease version with changes that should solve the issue