Android中屏蔽 电源键长按、Home键、Home长按

转载至:http://blog.csdn.net/gao_chun/article/details/45153273

Android中屏蔽电源键长按、Home键、Home长按

 这几个“按键”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长按"（recentapps）

我们可以使用广播来实现，如：

[java] view
plaincopyprint?

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);  

    }  

}