Send media button events with FLAG_RECEIVER_FOREGROUND set

        private void sendKeyEvent(int keyCode) {

            KeyEvent ke = new KeyEvent(KeyEvent.ACTION_DOWN, keyCode);

            Intent intent = new Intent(Intent.ACTION_MEDIA_BUTTON);

            intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);

            intent.putExtra(Intent.EXTRA_KEY_EVENT, ke);

            MediaSessionLegacyHelper.sendKeyEvent(mPendingIntent, mContext, intent);