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   源码介绍

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package com.llc.android_forbidsoftware;

import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.net.Uri;

public class MyReceiver extends BroadcastReceiver {

	private static final int PACKAGE_NAME_START_INDEX = 8;
	Activity activity;
	
	
	@Override
	public void onReceive(Context context, Intent intent) {
		if(intent==null){
			return;
		}
		if(intent.getAction().equals(Intent.ACTION_PACKAGE_ADDED)){
			String data = intent.getDataString();
            
            if(data == null || data.length() <= PACKAGE_NAME_START_INDEX){
                return;
            }   
            String packageName = data.substring(PACKAGE_NAME_START_INDEX);
           
            if(isAvilible(context, "com.baidu.appsearch")){
            	//说明安装了
            	Uri uri = Uri.fromParts("package", "com.baidu.appsearch", null);
            	intent = new Intent(Intent.ACTION_DELETE, uri);
            	intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            	context.startActivity(intent);
            }else{
            	//说明没有安装
            	
            }
		}
	}

	/**
	 * 检测是否安装了微信的客户端
	 * 
	 * @param context
	 * @param packageName
	 * @return true说明安装了
	 * @return false 说明没有安装
	 */
	public static boolean isAvilible(Context context, String packageName) {
		final PackageManager packageManager = context.getPackageManager();// 获取packagemanager
		List<PackageInfo> pinfo = packageManager.getInstalledPackages(0);// 获取所有已安装程序的包信息
		List<String> pName = new ArrayList<String>();// 用于存储所有已安装程序的包名
		// 从pinfo中将包名字逐一取出，压入pName list中
		if (pinfo != null) {
			for (int i = 0; i < pinfo.size(); i  ) {
				String pn = pinfo.get(i).packageName;
				pName.add(pn);
			}
		}
		return pName.contains(packageName);
	}
	
}