获取手机中所有能启动的程序信息

package com.android.mobilesafe.engine;

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

import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.graphics.drawable.Drawable;

import com.android.mobilesafe.domain.TrafficInfo;

public class TrafficManagerService {

    private Context context;
    private PackageManager pm;
    
    public TrafficManagerService(Context context) {
        // TODO Auto-generated constructor stub
        this.context = context;
        pm = context.getPackageManager();
    }
    
    /**
     * 得到所有能启动的应用
     * @return
     */
    public List<TrafficInfo> getLauncherTrafficInfos(){
        List<TrafficInfo> trafficInfos = new ArrayList<TrafficInfo>();
        
        // 查询所有启动的应用程序
        Intent intent = new Intent();
        intent.setAction(Intent.ACTION_MAIN);
        intent.addCategory(Intent.CATEGORY_LAUNCHER);
        
        // ResolveInfo 类似于一个IntentFilter
        List<ResolveInfo> resolvInfos = pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
        for (ResolveInfo info : resolvInfos) {
            ApplicationInfo appInfo = info.activityInfo.applicationInfo;
            Drawable appicon = appInfo.loadIcon(pm);// 获取图标
            String appname = appInfo.loadLabel(pm).toString();// 程序名称
            String packageName = appInfo.packageName;// 获取程序包名
            int uid = appInfo.uid; // 获取程序UID
            
            trafficInfos.add(new TrafficInfo(appicon, appname, uid, packageName));
        }
        
        return trafficInfos;
    }
}