1.耳機插拔
首先,在oncreate裏面註冊receiver,
registerReceiver(headSetReceiver, new IntentFilter(Intent.ACTION_HEADSET_PLUG));
接着,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裏面加入Intent.ACTION_MEDIA_BUTTON
然後在onReceive函數裏面處理
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級的概念在裏面,而 hook 被系統的自帶的播發器給截獲了,用完以後又給銷燬了 所以導致我的應用監聽不到hook按鍵 ,只要提升廣播接收的優先級即可 系統的是1000 我的是1000+1; ok!