监听Android开机关机事件!
首先创建一个Android工程,整个工程的目录结构如下:
主activity代码不做更改:
HelloWorldActivity.class
package com.android.ray.activity;
import android.app.Activity;
import android.os.Bundle;
public class HelloWorldActivity extends Activity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
}
然后新建两个BroadCastReceiver代码如下:
BootReceiver.class
package com.android.ray.service; import android.content.BroadcastReceiver; public class BootReceiver extends BroadcastReceiver { public void onReceive(Context context, Intent intent) { }
import android.content.Context;
import android.content.Intent;
import android.util.Log;
private String ACTION_BOOT = "android.intent.action.BOOT_COMPLETED";
if(intent.getAction().equals(ACTION_BOOT)){
System.out.println("----------******----------");
System.out.println("Boot this system!!!");
Log.i("MainActivity", "Boot this system!!!");
}
}
ShutdownReceiver
package com.android.ray.service; import android.content.BroadcastReceiver; public class ShutdownReceiver extends BroadcastReceiver { public void onReceive(Context context, Intent intent) { } 最后在Manifest.xml中申明这两个BroadCastReceiver并添上权限 <?xml version="1.0" encoding="utf-8"?> <receiver android:name="com.android.ray.service.BootReceiver"> 注意:重启模拟器才会执行BootReceiver.class
import android.content.Context;
import android.content.Intent;
import android.util.Log;
private String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
if(intent.getAction().equals(ACTION_SHUTDOWN)){
System.out.println("----------******----------");
System.out.println("Shut down this system!!!");
Log.i("MainActivity", "Shut down this system!!!");
}
}
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.android.ray.activity"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="10" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".HelloWorldActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED"/>
</intent-filter>
</receiver>
<receiver android:name="com.android.ray.service.ShutdownReceiver">
<intent-filter>
<action android:name="android.intent.action.ACTION_SHUTDOWN"/>
</intent-filter>
</receiver>
</application>
</manifest>