Android利用廣播監聽裝置安裝和卸載應用程式

MainActivity如下:

package cn.testappaddandremove;import android.os.Bundle;import android.app.Activity;import android.content.IntentFilter;/** * Demo描述: * 利用廣播監聽裝置安裝和卸載應用程式 *  * 參考資料: * http://blog.csdn.net/wangjinyu501/article/details/9664315 * Thank you very much */public class MainActivity extends Activity {    private AppBroadcastReceiver mAppBroadcastReceiver;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);}    @Override    protected void onStart() {    super.onStart();//    //方式一:在代碼中設定IntentFilter//    mAppBroadcastReceiver=new AppBroadcastReceiver();//    IntentFilter intentFilter=new IntentFilter();//    intentFilter.addAction("android.intent.action.PACKAGE_ADDED");//    intentFilter.addAction("android.intent.action.PACKAGE_REMOVED");//    intentFilter.addDataScheme("package");//    this.registerReceiver(mAppBroadcastReceiver, intentFilter);        //方式二:在Manifest.xml中設定IntentFilter    //       測試發現方式二效果更好些    mAppBroadcastReceiver=new AppBroadcastReceiver();    IntentFilter intentFilter=new IntentFilter();    this.registerReceiver(mAppBroadcastReceiver,intentFilter);    }@Overrideprotected void onDestroy() {if (mAppBroadcastReceiver!=null) {this.unregisterReceiver(mAppBroadcastReceiver);}super.onDestroy();}}

AppBroadcastReceiver如下:

package cn.testappaddandremove;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;public class AppBroadcastReceiver extends BroadcastReceiver {    private final String ADD_APP ="android.intent.action.PACKAGE_ADDED";    private final String REMOVE_APP ="android.intent.action.PACKAGE_REMOVED";@Overridepublic void onReceive(Context context, Intent intent) {String action=intent.getAction();if (ADD_APP.equals(action)) {String packageName=intent.getDataString();System.out.println("安裝了:"+packageName);}if (REMOVE_APP.equals(action)) {String packageName=intent.getDataString();System.out.println("卸載了:"+packageName);}}}

Manifest.xml如下:

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="cn.testappaddandremove"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="8"        android:targetSdkVersion="8" />    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity            android:name="cn.testappaddandremove.MainActivity"            android:label="@string/app_name" >            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>                <receiver android:name="cn.testappaddandremove.AppBroadcastReceiver">            <intent-filter >                <action android:name="android.intent.action.PACKAGE_ADDED" />                  <action android:name="android.intent.action.PACKAGE_REMOVED" />                  <data   android:scheme="package" />             </intent-filter>        </receiver>            </application></manifest>

main.xml如下:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    >    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="監聽應用程式的安裝和卸載"        android:layout_centerInParent="true"    /></RelativeLayout>