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ndroid如何监听开机广播和关机广播

需求描述:有些时候,我们需要我们的程序在开机后能自动运行,在系统即将关闭时,能写入一些记录到指定的文件里。

一、开机广播监听:

        Android系统启动完成后会发出启动完成广播(android.intent.action.BOOT_COMPLETED),所有注册了接收启动完成广播的接收器(BroadcastReceiver)都会收到此广播。

       1、在AndroidManifest.xml文件里添加授予应用程序访问系统开机事件的权限

<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />

2、编写系统发出的开机启动完成广播的接收器。自定类继承BroadcastReceiver类,代码如下:

package com.android.test;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.util.Log;/** * 类名:BootBroadcastReceiver  * 功能描述:启动时系统发出的广播的接收器 * #<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" /> * @author android_ls */public class BootBroadcastReceiver extends BroadcastReceiver {    private static final String TAG = "BootBroadcastReceiver";    private static final String ACTION_BOOT = "android.intent.action.BOOT_COMPLETED";    @Override    public void onReceive(Context context, Intent intent) {        Log.i(TAG, "Boot this system , BootBroadcastReceiver onReceive()");        if (intent.getAction().equals(ACTION_BOOT)) {            Log.i(TAG, "BootBroadcastReceiver onReceive(), Do thing!");        }    }}

3、在AndroidManifest.xml文件里注册广播接收器

   <receiver android:name="com.android.test.BootBroadcastReceiver" >            <intent-filter >                <action android:name="android.intent.action.BOOT_COMPLETED" />                <category android:name="android.intent.category.HOME" />            </intent-filter>        </receiver>

二、关机广播监听:

       Android系统提供了与开机广播对应的关机广播,在系统即将关闭时发出此广播。

       1、编写在系统即将关闭时发出的广播的接收器。自定类继承BroadcastReceiver类,代码如下:

package com.android.test;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.util.Log;/** * 类名:ShutdownBroadcastReceiver * 功能描述:在系统即将关闭时发出的广播的接收器 * @author android_ls */public class ShutdownBroadcastReceiver extends BroadcastReceiver {    private static final String TAG = "ShutdownBroadcastReceiver";        private static final String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";        @Override    public void onReceive(Context context, Intent intent) {        Log.i(TAG, "Shut down this system, ShutdownBroadcastReceiver onReceive()");                if (intent.getAction().equals(ACTION_SHUTDOWN)) {            Log.i(TAG, "ShutdownBroadcastReceiver onReceive(), Do thing!");        }    }}

2、在AndroidManifest.xml文件里注册广播接收器

   <receiver android:name="com.android.test.ShutdownBroadcastReceiver" >            <intent-filter >                <action android:name="android.intent.action.ACTION_SHUTDOWN" />                <category android:name="android.intent.category.HOME" />            </intent-filter>        </receiver>

注:开机关机操作有两种方式:1、重新启动,关闭后立刻又开机。这种情况下,开机启动完成和在系统即将关闭时发出的广播,都可以接收到。2、关机,这时的在系统即将关闭时发出的广播接收不到(我测试时遇到的情况)。开机,开机启动完成发出的广播时可以接收到的。

 

http://blog.csdn.net/android_ls/article/details/8605915

ndroid如何监听开机广播和关机广播