Android - Volume Buttons used in my application

Question

I need to use volume buttons to control a variable parameter in my application. I use Activity.onKeyDown to get notified when the button is pressed but the media volume is also increased.
Android is doing something like below when I press the volume key:

1. increase media / ringtone volume
2. pass the event to my application

Is there a way to avoid increasing the system volume and use volume key only for my application?

Answer 1

You need to capture all actions:

@Override public boolean dispatchKeyEvent(KeyEvent event) {     int action = event.getAction();     int keyCode = event.getKeyCode();         switch (keyCode) {         case KeyEvent.KEYCODE_VOLUME_UP:             if (action == KeyEvent.ACTION_DOWN) {                 //TODO             }             return true;         case KeyEvent.KEYCODE_VOLUME_DOWN:             if (action == KeyEvent.ACTION_DOWN) {                 //TODO             }             return true;         default:             return super.dispatchKeyEvent(event);         }     }