问题描述
双击检测耳机"按钮并长按(单击)Android
Detect Headset buttons double click and Long press(click) Android
我正在尝试以下代码
public class MediaButtonReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Log.e("----onReceive--", " ");
if (Intent.ACTION_HEADSET_PLUG.equals(intent.getAction())) {
Log.e("----jack out--", " ");
if (intent.getExtras().getInt("state") == 1)// if plugged
Toast.makeText(context, "earphones plugged", Toast.LENGTH_LONG)
.show();
else
Toast.makeText(context, "earphones un-plugged",
Toast.LENGTH_LONG).show();
}
if (Intent.ACTION_MEDIA_BUTTON.equals(intent.getAction())) {
Toast.makeText(context, "button pressed", Toast.LENGTH_LONG).show();
// key=intent.getExtras().getString("EXTRA_KEY_EVENT");
}
abortBroadcast();
}
它检测到耳机按钮正确点击
It detects the headset button click correctly
但是我们如何检测耳机的长按和双击
However how can we detect long click and double click for headset
推荐答案
对于双击,您可以通过重写Activity onKeyDown
方法并测量每次单击之间经过的时间来检测到它:
For the double click you can detect it by overriding Activity onKeyDown
method and measuring time elapsed between each click:
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if(keyCode == KeyEvent.KEYCODE_HEADSETHOOK){
//check if it's the first or the second click and measure time between them
return true;
}
return super.onKeyDown(keyCode, event);
}
还有一个Activity onKeyLongPress
方法,但是它在带有耳机按钮的设备上似乎不起作用,因为当我长按耳机按钮时,它会启动Google即时,而我在活动中无法检测到
There's also an Activity onKeyLongPress
method but it doesn't seem to work on my device with headset button as when I long press headset button it launches Google Now and I can't detect it inside my activity
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