Android中监听"电源键长按"、"Home键"、"Home键长按"

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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;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		
		
		myBroadCastReceiver = new MyBroadCastReceiver();
		
	}
	@Override
	protected void onResume() {
		// TODO Auto-generated method stub
		super.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{

		@Override
		public 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");
					}
				}
			}
		}
		
	}
	
	@Override
	protected void onPause() {
		// TODO Auto-generated method stub
		super.onPause();
		
		System.out.println("I get out, myBroadCastReceiver注销了!");
		unregisterReceiver(myBroadCastReceiver);
	}
}

效果图：