Android中屏蔽"电源键长按"、"Home键"、"Home键长按"，,这几个“按键”的触发，都

Android中屏蔽"电源键长按"、"Home键"、"Home键长按"，,这几个“按键”的触发，都

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键长按"（recentapps）

 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);      }  }