Android: How to use mediaController in service class?

Question

I have a app that plays radio via MediaPlayer as a service. Is it possible to use MediaController in Service class? The problem is that I can use findViewById.

I try

Answer 1

I had the same problem and I couldn't get it working the way you have it.

The solution is to bind the Service in the Activity and then you may access the MediaPlayer running in the Service from within your Activity.

Please note that to run this way your Service must have defined all necessary methods like getCurrentPosition etc.

In your Activity add the binding facility:

/****************************************************************** 
 * 
 * Defines callbacks for service binding, passed to bindService() 
 * 
 * ************************************************************** */
private ServiceConnection mConnection = new ServiceConnection() {

    @Override
    public void onServiceConnected(ComponentName className,
            IBinder service) {
        // We've bound to LocalService, cast the IBinder and get LocalService instance
        LocalBinder binder = (LocalBinder) service;
        mService = binder.getService();
        mBound = true;
    }

    @Override
    public void onServiceDisconnected(ComponentName arg0) {
        mBound = false;
    }
};

Then you must modify the onStart() and onStop() methods to Bind/unBind the service.

@Override
protected void onStart() {
    super.onStart();
    // Bind to LocalService
    Intent intent = new Intent(this, MusicService.class);
    bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
}

@Override
protected void onStop() {
    super.onStop();
    // Unbind from the service
    if (mBound) {
        unbindService(mConnection);
        mBound = false;
    }
}

What I did later is to create the following methods

public void showMediaControllerHere(){
    if (mBound){
        mc = new MediaController(mpContext);
        mc.setAnchorView(findViewById(R.id.anchorText));
        mc.setMediaPlayer(mService);
        mc.setEnabled(true);
        mc.show(0);
    }
}
@Override
  public boolean onTouchEvent(MotionEvent event) {
    //the MediaController will hide after 3 seconds - tap the screen to make it appear again
    if (first){
          if (mBound){
              showMediaControllerHere();
              first = false;
          }
      }
      else {
          if (mBound){
              mc.show(0);
          }
      }
    return false;
  }

first is a boolean that is used to realize whether we have to create the mediacontroller or not, I create only on the first time the user touches the screen.