1.耳機插拔
首先,在oncreate裡面註冊receiver,
registerReceiver(headSetReceiver, new IntentFilter(Intent.ACTION_HEADSET_PLUG));
接著,是接收廣播部分:
private final BroadcastReceiver headSetReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { Log.d(TAG,"into headsetreceiver!"); String action = intent.getAction(); if (action.equals(Intent.ACTION_HEADSET_PLUG)) { //headphone plugged if(intent.getIntExtra("state", 0) == 1){ //do something Log.d(TAG,"this is headphone plugged"); headsetState.setText("耳機檢測:插入"); //headphone unplugged }else{ //do something Log.d(TAG,"this is headphone unplugged"); headsetState.setText("耳機檢測:沒有插入"); } } } };
2.耳機按鍵檢測
/*檢測耳機按鍵*/public boolean onKeyDown(int keyCode, KeyEvent event) {switch (keyCode) {case KeyEvent.KEYCODE_HEADSETHOOK: //DisplayToast("按下:耳機鍵"); headsetState.setText("耳機檢測:插入,耳機按鍵按下");break;}return true;}public boolean onKeyUp(int keyCode, KeyEvent event) {switch (keyCode) {case KeyEvent.KEYCODE_HEADSETHOOK: //DisplayToast("彈起:耳機鍵"); headsetState.setText("耳機檢測:插入,耳機按鍵彈起");break;}return true;}
就可以檢測到耳機按鍵了,網路上有人說可以通過下面的方法檢測耳機按鍵,並且是轉載了N多篇的。我試了 不行。。。 希望有成功的哥們,看到後給我留言講講,交流很重要。。。
只需要在filter裡面加入Intent.ACTION_MEDIA_BUTTON然後在onReceive函數裡面處理 final KeyEvent event = (KeyEvent) intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);if (event != null && event.getAction() == KeyEvent.ACTION_DOWN){ //do something }
上面提到的問題 ,現在明白了 是廣播接收有一個優先順序的概念在裡面,而 hook 被系統的內建的播發器給截獲了,用完以後又給銷毀了 所以導致我的應用程式監聽不到hook按鍵 ,只要提升廣播接收的優先順序即可 系統的是1000 我的是1000+1; ok!