Android利用广播监听设备安装和卸载应用程序

MainActivity如下:

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();
	}
}

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";
	@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);
		}
	}

}

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

</RelativeLayout>