fix(android): app crash in the background when the notification of th…

[kyo-torstar]

Describe the Bug
There are lots of reports about the crash log

android.app.ForegroundServiceStartNotAllowedException: Service.startForeground() not allowed due to mAllowStartForeground false: service nl.sajansen.hymnbook2/com.doublesymmetry.trackplayer.service.MusicService
  android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel (ForegroundServiceStartNotAllowedException.java:54)
  android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel (ForegroundServiceStartNotAllowedException.java:50)
  android.os.Parcel.readParcelableInternal (Parcel.java:4882)
  android.os.Parcel.readParcelable (Parcel.java:4864)
  android.os.Parcel.createExceptionOrNull (Parcel.java:3064)
  android.os.Parcel.createException (Parcel.java:3053)
  android.os.Parcel.readException (Parcel.java:3036)
  android.os.Parcel.readException (Parcel.java:2978)
  android.app.IActivityManager$Stub$Proxy.setServiceForeground (IActivityManager.java:7214)
  android.app.Service.startForeground (Service.java:775)
  com.doublesymmetry.trackplayer.service.MusicService.startAndStopEmptyNotificationToAvoidANR (MusicService.kt:123)
  com.doublesymmetry.trackplayer.service.MusicService.onStartCommand (MusicService.kt:98)
  android.app.ActivityThread.handleServiceArgs (ActivityThread.java:5268)
  android.app.ActivityThread.-$$Nest$mhandleServiceArgs (Unknown source)
  android.app.ActivityThread$H.handleMessage (ActivityThread.java:2531)
  android.os.Handler.dispatchMessage (Handler.java:106)
  android.os.Looper.loopOnce (Looper.java:230)
  android.os.Looper.loop (Looper.java:319)
  android.app.ActivityThread.main (ActivityThread.java:8893)
  java.lang.reflect.Method.invoke (Method.java:-2)
  com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:608)
  com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1103)
java.lang.RuntimeException: Unable to start service com.doublesymmetry.trackplayer.service.MusicService@7af617a with null: android.app.ForegroundServiceStartNotAllowedException: Service.startForeground() not allowed due to mAllowStartForeground false: service nl.sajansen.hymnbook2/com.doublesymmetry.trackplayer.service.MusicService
  android.app.ActivityThread.handleServiceArgs (ActivityThread.java:5286)
  android.app.ActivityThread.-$$Nest$mhandleServiceArgs (Unknown source)
  android.app.ActivityThread$H.handleMessage (ActivityThread.java:2531)
  android.os.Handler.dispatchMessage (Handler.java:106)
  android.os.Looper.loopOnce (Looper.java:230)
  android.os.Looper.loop (Looper.java:319)
  android.app.ActivityThread.main (ActivityThread.java:8893)
  java.lang.reflect.Method.invoke (Method.java:-2)
  com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:608)
  com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1103)

Steps To Reproduce

1. start the app with the library initialized
2. put the app to background
3. go to settings of the app and turn the notification off
4. wait for 5-10 seconds
5. the app crashes in the background

Related Issues
it should fix the issue #2244

[rafaelDevloft]

Any news on this? 🙏