41.android广播-监控应用的状态

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应用有3中状态：安装，更新和卸载，因此需要3个广播：

清单文件配置如下：

        <receiver android:name="com.ldw.appstatus.appReceiver">            <intent-filter>                <action android:name="android.intent.action.PACKAGE_ADDED"/>                <action android:name="android.intent.action.PACKAGE_REPLACED"/>                <action android:name="android.intent.action.PACKAGE_REMOVED"/>                <data android:scheme="package"/>            </intent-filter>        </receiver>

监控app状态代码：

package com.ldw.appstatus;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.net.Uri;import android.widget.Toast;public class appReceiver extends BroadcastReceiver {@Overridepublic void onReceive(Context context, Intent intent) {// TODO Auto-generated method stubString action = intent.getAction();Uri uri = intent.getData();//获取到应用的包名if("android.intent.action.PACKAGE_ADDED".equals(action)){Toast.makeText(context, uri.toString() + "被安装了", Toast.LENGTH_SHORT).show();}else if("android.intent.action.PACKAGE_REPLACED".equals(action)){Toast.makeText(context, uri.toString() + "被更新了", Toast.LENGTH_SHORT).show();}else if("android.intent.action.PACKAGE_REMOVED".equals(action)){Toast.makeText(context, uri.toString() + "被卸载了", Toast.LENGTH_SHORT).show();}}}

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