Android截取开机关机事件

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;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

public class BootReceiver extends BroadcastReceiver {
private String ACTION_BOOT = "android.intent.action.BOOT_COMPLETED";

public void onReceive(Context context, Intent intent) {
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;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

public class ShutdownReceiver extends BroadcastReceiver {
private String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";

public void onReceive(Context context, Intent intent) {

if(intent.getAction().equals(ACTION_SHUTDOWN)){
System.out.println("----------******----------");
System.out.println("Shut down this system!!!");
Log.i("MainActivity", "Shut down this system!!!");
}
}

}

最后在Manifest.xml中申明这两个BroadCastReceiver并添上权限

<?xml version="1.0" encoding="utf-8"?>
<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>

注意：重启模拟器才会执行BootReceiver.class

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