Android中监听"电源键长按"、"Home键"、"Home键长按"

Android中监听"电源键长按"、"Home键"、"Home键长按"

这几个“按钮”的触发，都会产生一个Action ==Intent.ACTION_CLOSE_SYSTEM_DIALOGS的通知

区分他们三个的不同事件的参数，就是随着Intent带过来的reason字符串，分别对应

"电源键长按"（globalscreen）、"Home键"（homekey）、"Home键长按"（recentapps）

说破了就这么简单，直接上代码了。

package com.jumpinus.test;import android.app.Activity;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.content.IntentFilter;import android.os.Bundle;public class MainActivity extends Activity {private MyBroadCastReceiver myBroadCastReceiver;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);myBroadCastReceiver = new MyBroadCastReceiver();}@Overrideprotected void onResume() {// TODO Auto-generated method stubsuper.onResume();IntentFilter intentFilter = new IntentFilter();intentFilter.addAction(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);System.out.println("I'm coming, myBroadCastReceiver注册了!");registerReceiver(myBroadCastReceiver, intentFilter);}private class MyBroadCastReceiver extends BroadcastReceiver{@Overridepublic void onReceive(Context context, Intent intent) {//你自己先把 reasons == homekey 和 长按homekey 排除，剩下的做下面的处理String reason = intent.getStringExtra("reason");if (intent.getAction().equals(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)){System.out.println("Intent.ACTION_CLOSE_SYSTEM_DIALOGS : " + intent.getStringExtra("reason"));if (intent.getExtras()!=null && intent.getExtras().getBoolean("myReason")){myBroadCastReceiver.abortBroadcast();}else if (reason != null){if (reason.equalsIgnoreCase("globalactions")){//监听电源长按键的方法：Intent myIntent = new Intent(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);myIntent.putExtra("myReason", true);context.sendOrderedBroadcast(myIntent, null);System.out.println("电源  键被长按");}else if (reason.equalsIgnoreCase("homekey")){//监听Home键的方法//在这里做一些你自己想要的操作,比如重新打开自己的锁屏程序界面，这样子就不会消失了System.out.println("Home 键被触发");}else if (reason.equalsIgnoreCase("recentapps")){//监听Home键长按的方法System.out.println("Home 键被长按");}}}}}@Overrideprotected void onPause() {// TODO Auto-generated method stubsuper.onPause();System.out.println("I get out, myBroadCastReceiver注销了!");unregisterReceiver(myBroadCastReceiver);}}

效果图：