Android中监听"电源键长按"、"Home键"、"Home键长按"

红太狼 2022-08-12 09:29 666阅读 0赞

**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);
    	}
    }
    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：**

**![SouthEast][]**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9yZW55dWdhbmcuYmxvZy5jc2RuLm5ldA_size_16_color_FFFFFF_t_70][]

[SouthEast]: /images/20220810/7ed4b5d400d34164a0c60c0950bc3edf.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9yZW55dWdhbmcuYmxvZy5jc2RuLm5ldA_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20190902152959521.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9yZW55dWdhbmcuYmxvZy5jc2RuLm5ldA==,size_16,color_FFFFFF,t_70