Android uses broadcast listening devices to install and uninstall applications

MainActivity is as follows:

Package CN. testappaddandremove; import android. OS. bundle; import android. app. activity; import android. content. intentfilter;/*** demo Description: * use a broadcast listening device to install and uninstall an application ** reference: * http://blog.csdn.net/wangjinyu501/article/details/9664315 * Thank you very much */public class mainactivity extends activity {private appbroadcastreceiver mappbroadcastreceiver; @ overrideprotected void oncreate (bundle savedinstancestat E) {super. oncreate (savedinstancestate); setcontentview (R. layout. main) ;}@ override protected void onstart () {super. onstart (); // Method 1: Set intentfilter in the Code // mappbroadcastreceiver = new appbroadcastreceiver (); // intentfilter = new intentfilter (); // intentfilter. addaction ("android. intent. action. package_added "); // intentfilter. addaction ("android. intent. action. package_removed "); // intentfilter. A Dddatascheme ("package"); // This. registerreceiver (mappbroadcastreceiver, intentfilter); // Method 2: In manifest. set intentfilter in XML // test method 2. Better Results mappbroadcastreceiver = new appbroadcastreceiver (); intentfilter = new intentfilter (); this. registerreceiver (mappbroadcastreceiver, intentfilter) ;}@ overrideprotected void ondestroy () {If (mappbroadcastreceiver! = NULL) {This. unregisterreceiver (mappbroadcastreceiver);} super. ondestroy ();}}

AppBroadcastReceiver is as follows:

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 ("installed:" + packageName);} if (REMOVE_APP.equals (action) {String packageName = intent. getDataString (); System. out. println ("uninstalled:" + packageName );}}}

Manifest. xml is as follows:

<?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 is as follows:

<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 = "listening for application installation and uninstallation" android: layout_centerInParent = "true"/> </RelativeLayout>