Android back button and MediaController

Question

I know how to take control of the back button. I have a VideoView embedded in a FrameLayout. My question is when the video pops up, the video contr

Answer 1

The previous solutions no longer work with Android Pie +, you must instead :

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
        mediaController.addOnUnhandledKeyEventListener((v, event) -> {
            //Handle BACK button
            if (event.getKeyCode() == KeyEvent.KEYCODE_BACK && event.getAction() == KeyEvent.ACTION_UP)
            {
                mediaController.hide(); //Hide mediaController,according to your needs, you can also called here onBackPressed() or finish() 
            }
            return true;
        });
    }

Answer 2

You can also have the Activity handle the event:

mVideoView.setMediaController(new MediaController(this){
    @Override
    public boolean dispatchKeyEvent(KeyEvent event) {
        if (event.getKeyCode() == KeyEvent.KEYCODE_BACK ) {
            if (event.getAction() == KeyEvent.ACTION_DOWN) {
                return true;
            } else if (event.getAction() == KeyEvent.ACTION_UP) {
                ((Activity) getContext()).onBackPressed();
                return true;
            }
        }
        return super.dispatchKeyEvent(event);
    }       
});

Then handle it in your Activity:

@Override
public void onBackPressed() {
    // clean up or send result here
    finish();
}

Answer 3

Based on the source code, this should work:

1. Extend MediaController (for the purposes of this answer, call it RonnieMediaController)
2. Override dispatchKeyEvent() in RonnieMediaController
3. Before chaining to the superclass, check for KeyEvent.KEYCODE_BACK, and if that is encountered, tell your activity to finish()
4. Use RonnieMediaController instead of MediaController with your VideoView

Personally, I'd just leave it alone, as with this change your user cannot make a RonnieMediaController disappear on demand.

Answer 4

You can simply write:

mVideoView.setMediaController(new MediaController(this){
        public boolean dispatchKeyEvent(KeyEvent event)
        {
            if (event.getKeyCode() == KeyEvent.KEYCODE_BACK)
                ((Activity) getContext()).finish();

            return super.dispatchKeyEvent(event);
        }
    });

No need to create new class.