Android利用广播监听设备安装和卸载应用程序

package cn.testappaddandremove;

import android.os.Bundle;
import android.app.Activity;
import android.content.IntentFilter;
/**
* Demo描述:
* 利用广播监听设备安装和卸载应用程序
*
* 参考资料:
* http://blog.csdn.net/wangjinyu501/article/details/9664315 * Thank you very much
*/
public class MainActivity extends Activity {
private AppBroadcastReceiver mAppBroadcastReceiver;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
@Override
protected void onStart() {
super.onStart();
//      //方式一:在代码中设置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中设置IntentFilter
//       测试发现方式二效果更好些
mAppBroadcastReceiver=new AppBroadcastReceiver();
IntentFilter intentFilter=new IntentFilter();
this.registerReceiver(mAppBroadcastReceiver,intentFilter);
}
@Override
protected void onDestroy() {
if (mAppBroadcastReceiver!=null) {
this.unregisterReceiver(mAppBroadcastReceiver);
}
super.onDestroy();
}
}

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";
@Override
public void onReceive(Context context, Intent intent) {
String action=intent.getAction();
if (ADD_APP.equals(action)) {
String packageName=intent.getDataString();
System.out.println("安装了:"+packageName);
}
if (REMOVE_APP.equals(action)) {
String packageName=intent.getDataString();
System.out.println("卸载了:"+packageName);
}
}

}

<?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>

<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="监听应用程序的安装和卸载"
android:layout_centerInParent="true"
/>

</RelativeLayout>