1.耳机插拔
首先,在oncreate里面注册receiver,
registerReceiver(headSetReceiver, new IntentFilter(Intent.ACTION_HEADSET_PLUG));
接着,是接收广播部分:
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("耳机检测:插入");
//headphone unplugged
}else{
//do something
Log.d(TAG,"this is headphone unplugged");
headsetState.setText("耳机检测:没有插入");
}
}
}
};
2.耳机按键检测
/*检测耳机按键*/
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_HEADSETHOOK:
//DisplayToast("按下:耳机键");
headsetState.setText("耳机检测:插入,耳机按键按下");
break;
}
return true;
}
public boolean onKeyUp(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_HEADSETHOOK:
//DisplayToast("弹起:耳机键");
headsetState.setText("耳机检测:插入,耳机按键弹起");
break;
}
return true;
}
就可以检测到耳机按键了,网路上有人说可以通过下面的方法检测耳机按键,并且是转载了N多篇的。我试了 不行。。。 希望有成功的哥们,看到后给我留言讲讲,交流很重要。。。
只需要在filter里面加入Intent.ACTION_MEDIA_BUTTON
然后在onReceive函数里面处理
final KeyEvent event = (KeyEvent) intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
if (event != null && event.getAction() == KeyEvent.ACTION_DOWN){
//do something
}
上面提到的问题 ,现在明白了 是广播接收有一个优先级的概念在里面,而 hook 被系统的自带的播发器给截获了,用完以后又给销毁了 所以导致我的应用监听不到hook按键 ,只要提升广播接收的优先级即可 系统的是1000 我的是1000+1; ok!