public void onReceive(Context context, Intent intent) {
String intentAction = intent.getAction();
String intentExtra = intent.getStringExtra(ACTION);
if (Intent.ACTION_MEDIA_BUTTON.equals(intentAction)) {
KeyEvent event = (KeyEvent)
intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
比如我现在在接收者方法中,有多个广播在发送,我是否能够通过if匹配接收到的信息不同来处理下面的操作