FlutterForegroundTask.launchApp(); Not working

[OsamaQureshi796]

Hi,

I hope this finds you well.

I'm using FlutterForegroundTask to launch the app when it is background when some even is happen in my app.

But it is not working anymore to bring app from background to foreground.

FlutterForegroundTask.launchApp();

i checked logcat and also i searched for crashlytics but there is no crash around this problem.

Does anyone explain whats the problem.

Thanks

[jaypokar]

I am getting same issue.
it works upto android OS version 12 or 13, but when running over android OS 14 after allowing Display Over the Apps permission it works perfectly ,
I am trying to understand do we need special permission for this or what ?

[Dev-hwang]

Sorry for the late response. @OsamaQureshi796 @jaypokar

Due to restrictions on starting activities in the background on the Android platform, you must declare and grant the SYSTEM_ALERT_WINDOW permission to use the FlutterForegroundTask.launchApp function.

You can request the permission as follows:

<manifest>
    <!-- for utils -->
    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<manifest>

if (Platform.isAndroid) {
   // The `launchApp` function requires the `android.permission.SYSTEM_ALERT_WINDOW` permission and 
   // requires using the `openSystemAlertWindowSettings()` function to grant the permission.
   if (!await FlutterForegroundTask.canDrawOverlays) {
     await FlutterForegroundTask.openSystemAlertWindowSettings();
   }
}

The example app contains an explanation for this, but it was missing in the documentation. I will add this explanation to the documentation.

[OsamaQureshi796]

Hi @Dev-hwang ,

Thanks for the explanation but there is a problem, i was using this plugin for a specific case like if some android device don't have display over the other apps feature so in that case i was launching app when some event is triggered suppose i got trip request. In case of the devices that have display over the other apps there is my bubble chat head just like other apps.

Because it was working till now i don't know what happened and it stoped working.

Thanks