Android Wear Watchface Background listener

gistfile1.txt

private final BroadcastReceiver mBackgroundReceiver = new BroadcastReceiver() {
		public void onReceive(Context paramAnonymousContext, Intent paramAnonymousIntent) {
			if (paramAnonymousIntent.hasExtra("card_location")) {
				mListener.onCardLocation(
						Rect.unflattenFromString(paramAnonymousIntent.getStringExtra("card_location")));
			}
			if (paramAnonymousIntent.hasExtra("card_progress_enabled")) {
				mListener.onCardProgressEnabled(paramAnonymousIntent.getBooleanExtra("card_progress_enabled", false));
			}
			if (paramAnonymousIntent.hasExtra("card_progress")) {
				mListener.onCardProgressUpdate(paramAnonymousIntent.getFloatExtra("card_progress", 0.0F));
			}
			if (paramAnonymousIntent.hasExtra("ambient_mode")) {
				mListener.onAmbientModeChanged(paramAnonymousIntent.getBooleanExtra("ambient_mode", false));
			}
		}
		
		
		IntentFilter backgroundIntentFilter = new IntentFilter("com.google.android.clockwork.home.action.BACKGROUND_ACTION");
		listener.registerReceiver(WatchFace.this.mBackgroundReceiver, backgroundIntentFilter);