/**

     * 获取所有的安装的应用程序信息

     *

     * @return

     */

    public static List<AppInfo> getAppInfo(Context context) {

        // 管理所有apk 的宝PackageManager

        PackageManager pm = context.getPackageManager();

        List<PackageInfo> packageInfos = pm.getInstalledPackages(0);

        List<AppInfo> appInfos = new ArrayList<AppInfo>();

        for (PackageInfo packInfo : packageInfos) {

            // packinfo 相当于一个应用程序 apk 包的清单文件

            AppInfo appInfo = new AppInfo();

            String packName = packInfo.packageName;

            Drawable icon = packInfo.applicationInfo.loadIcon(pm);

            String name = packInfo.applicationInfo.loadLabel(pm).toString();

            int flags = packInfo.applicationInfo.flags;

            int  uid  = packInfo.applicationInfo.uid;

            //流量信息

        /*  File rcvfile=new File("/proc/uid_stat/"+uid+"/tcp_rcv");

            File  sndfile=new File("/proc/uid_stat/"+uid+"/tcp_snd");*/

            appInfo.setUid(uid);

            if ((flags & ApplicationInfo.FLAG_SYSTEM) == 0) {

                // 用户程序

                appInfo.setUserApp(true);

            } else {

                // 系统程序

                appInfo.setUserApp(false);

            }

            if ((flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) == 0) {

                // 手机内存

                appInfo.setInRom(true);

            } else {

                // 手机外村村设备

                appInfo.setInRom(false);

            }

            // 适合状态多的

            appInfo.setIcon(icon);

            appInfo.setPackname(packName);

            appInfo.setName(name);

            appInfos.add(appInfo);

        }

        return appInfos;

    }