I can not fix this problem:
android.view.WindowManager $ BadTokenException: Unable to add window zero token; Does your activity work?
I have an application that has a hosting with a fragment that MediaController has. This activity is associated with the Service, which hosts the media player. What I want to do is start playing the song from step A, show the mediacontroller. Then leave step A and enter activity B, reconnect to the service, and if the sound is still playing, show the MediaController in step B. I keep getting the error above, no matter what I do. Actions A and B are the same different instances of the same activity. Let me know if you need to see any other code.
private ServiceConnection callConnection = new ServiceConnection() {
@Override
public void onServiceConnected( ComponentName name, IBinder service ) {
Log.d("LEAKTEST", "Connected to instance " + this.toString());
AudioService.MusicBinder binder = ( AudioService.MusicBinder ) service;
callService = binder.getService();
callService.setPreparedCallback( SpeciesDetailsFragment.this );
callService.setList( callList );
callService.setSpeciesId( getSpeciesId() );
if ( callService.isPng() ) {
setController();
showController();
}
musicBound = true;
}
@Override
public void onServiceDisconnected( ComponentName name ) {
musicBound = false;
}
};
private void setController() {
if ( controller == null ) {
controller = new CallController( getActivity() );
}
controller.setPrevNextListeners( new View.OnClickListener() {
@Override
public void onClick( View v ) {
playNext();
}
}, new View.OnClickListener() {
@Override
public void onClick( View v ) {
playPrev();
}
} );
controller.setMediaPlayer( this );
controller.setAnchorView( rootView );
}
private void showController(){
controller.show(0);
controller.setEnabled( true );
}
@Override
public void onPause() {
controller.hide();
loadingDialog.hide();
super.onPause();
}
@Override
public void onStop() {
controller.hide();
controller = null;
if ( musicBound ) {
getActivity().unbindService( callConnection );
musicBound = false;
}
super.onStop();
}
:
06-03 19:38:11.986 17417-17417/com.myname.appname.core E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.myname.appname.core, PID: 17417
android.view.WindowManager$BadTokenException: Unable to add window -- token null is not valid; is your activity running?
at android.view.ViewRootImpl.setView(ViewRootImpl.java:536)
at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:259)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
at android.widget.MediaController.show(MediaController.java:346)
at com.myname.appname.core.details.SpeciesDetailsFragment.showController(SpeciesDetailsFragment.java:354)
at com.myname.appname.core.details.SpeciesDetailsFragment.access$700(SpeciesDetailsFragment.java:49)
at com.myname.appname.core.details.SpeciesDetailsFragment$6.onServiceConnected(SpeciesDetailsFragment.java:382)
at android.app.LoadedApk$ServiceDispatcher.doConnected(LoadedApk.java:1117)
at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:1134)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5144)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:611)
at dalvik.system.NativeStart.main(Native Method)
,