After a certain time, I want to turn off audio_service in the background with the android_alarm_manager plugin.

[aydinfatih]

After a certain time, I want to turn off audio_service in the background with the android_alarm_manager plugin. How can I solve this problem?

When I try to do this, I get the following error.

[ERROR:flutter/lib/ui/ui_dart_state.cc(157)] Unhandled Exception: MissingPluginException(No implementation found for method stop on channel ryanheise.com/audioService)

My code is as follows.

FlatButton(
     onPressed: () async {
          await AndroidAlarmManager.oneShot(Duration(minutes: _minute.floor().toInt()), 0, backgroundCallback);
          Navigator.pop(context);
     },
     child: Text(S.of(context).set),
)

void backgroundCallback() async {
  AudioService.connect();
  AudioService.stop();
}

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  init();
  await sl<DotEnv>().load('.env');

  //get theme
  bool _isDarkTheme = await sl<SharedPreferenceHelper>().isDarkTheme() ?? false;

  if (Platform.isAndroid) {
    AndroidAlarmManager.initialize();
  }

  runApp(MainApp());
}

[√] Flutter (Channel stable, v1.12.13+hotfix.9, on Microsoft Windows [Version 10.0.18362.720], locale tr-TR)
    • Flutter version 1.12.13+hotfix.9 at D:\flutter
    • Framework revision f139b11009 (11 days ago), 2020-03-30 13:57:30 -0700
    • Engine revision af51afceb8
    • Dart version 2.7.2

[ryanheise]

Hi @FatihAydin52

This was discussed in #145 . You can try @rohansohonee 's suggestion:

Visit Upgrading-pre-1.12-Android-projects and follow the Full-Flutter app migration steps.
Also use android_alarm_manager plugin as it has v2 support.

MissingPluginException might be fixed if you add this to your MainActivity.java:

public void configureFlutterEngine(@NonNull FlutterEngine flutterEngine) {
   GeneratedPluginRegistrant.registerWith(flutterEngine);
}

The step of updating your project to Flutter 1.12 is only relevant if you have a pre-1.12 project structure.

Please let me know if this works for you and I'll add the suggestion to the FAQ.

[aydinfatih]

The mainActivity.java class is below. I also use Application.java file. It didn't work that way.

MainActivity.java

public class MainActivity extends FlutterActivity {
    @Override
    public void configureFlutterEngine(@NonNull FlutterEngine flutterEngine) {
        GeneratedPluginRegistrant.registerWith(flutterEngine);
    }

    @Override
    public FlutterEngine provideFlutterEngine(Context context) {
        // Instantiate a FlutterEngine.
        FlutterEngine flutterEngine = new FlutterEngine(context.getApplicationContext());

        // Start executing Dart code to pre-warm the FlutterEngine.
        flutterEngine.getDartExecutor().executeDartEntrypoint(
                DartExecutor.DartEntrypoint.createDefault()
        );

        return flutterEngine;
    }
}

Application.java

import io.flutter.app.FlutterApplication;
import io.flutter.plugin.common.PluginRegistry;
import io.flutter.plugin.common.PluginRegistry.PluginRegistrantCallback;
import io.flutter.plugins.firebasemessaging.FlutterFirebaseMessagingService;
import io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin;

public class Application extends FlutterApplication implements PluginRegistrantCallback {
    @Override
    public void onCreate() {
        super.onCreate();
        FlutterFirebaseMessagingService.setPluginRegistrant(this);
    }

    @Override
    public void registerWith(PluginRegistry registry) {
        FirebaseMessagingPlugin.registerWith(registry.registrarFor("io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin"));
    }
}

[ryanheise]

I don't think in the previous times this issue was raised that anyone supplied a minimal reproduction project. Would you be able to do so? Essentially, make a fork of this project, and edit the example in a minimal way to reproduce the error.

[aydinfatih]

I quickly created a project from scratch and repeated the error. You can reach the project from the link below.

https://github.com/FatihAydin52/audio-service-demo

[ryanheise]

Thanks!

[ryanheise]

Hi @FatihAydin52 I responded (I believe) to you on another issue and it appears to be the same example project. Are these two issues linked?

[ryanheise]

Closing due to inactivity.

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs, or use StackOverflow if you need help with audio_service.