headset button 的使用
android.permission.BLUETOOTH 权限
MediaButtonIntentReceiver mMediaButtonReceiver = new MediaButtonIntentReceiver();
IntentFilter mediaFilter = new IntentFilter(Intent.ACTION_MEDIA_BUTTON);
mediaFilter.setPriority(MEDIA_BUTTON_INTENT_EMPIRICAL_PRIORITY_VALUE);
registerReceiver(mMediaButtonReceiver, mediaFilter);
不要忘记设置优先权
public class HardButtonReceiver extends BroadcastReceiver
{
@Override
public void onReceive(Context context, Intent intent)
{
Log.v(“TestApp”, “Button press received”);
abortBroadcast();
KeyEvent key = (KeyEvent) intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
if(key.getAction() == KeyEvent.ACTION_UP)
{
int keycode = key.getKeyCode();
if(keycode == KeyEvent.KEYCODE_MEDIA_NEXT)
{
Log.d(“TestApp”, “Next Pressed”);
}
else if(keycode == KeyEvent.KEYCODE_MEDIA_PREVIOUS)
{
Log.d(“TestApp”, “Previous pressed”);
}
else if(keycode == KeyEvent.KEYCODE_HEADSETHOOK)
{
Log.d(“TestApp”, “Head Set Hook pressed”);
}
}
}
}
因为有些按键不一定被映射却要检查