Android中屏蔽"电源键长按"、"Home键"、"Home键长按"

Android中屏蔽"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")){

						//屏蔽电源长按键的方法：
						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")){

						//屏蔽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")){

						//屏蔽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：