Android读取第三方应用列表并卸载

工具类功能如标题所示，实现效果如上图，具体实现见代码。

/** * 安装一个apk文件 */public static void install(Context context, File uriFile) {    Intent intent = new Intent(Intent.ACTION_VIEW);    intent.setDataAndType(Uri.fromFile(uriFile), "application/vnd.android.package-archive");    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);    context.startActivity(intent);}/** * 卸载一个app */public static void uninstall(Context context, String packageName) {    //通过程序的包名创建URI    Uri packageURI = Uri.parse("package:" + packageName);    //创建Intent意图    Intent intent = new Intent(Intent.ACTION_DELETE, packageURI);    //执行卸载程序    context.startActivity(intent);}/** * 获取已安装非系统应用 * * @return */public static List<AppInfo> scanInstallApp(Context mContext) {    List<AppInfo> appInfos = new ArrayList<>();    PackageManager pm = mContext.getPackageManager(); // 获得PackageManager对象    List<ApplicationInfo> listAppcations = pm            .getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES);    Collections.sort(listAppcations,            new ApplicationInfo.DisplayNameComparator(pm));// 字典排序    for (ApplicationInfo app : listAppcations) {        if ((app.flags & ApplicationInfo.FLAG_SYSTEM) <= 0) {//非系统程序            appInfos.add(getAppInfo(app, pm));        }//本来是系统程序，被用户手动更新后，该系统程序也成为第三方应用程序了        else if ((app.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0) {            appInfos.add(getAppInfo(app, pm));        }    }    return appInfos;}/** *  构造一个AppInfo对象 ，并赋值 */private static AppInfo getAppInfo(ApplicationInfo app, PackageManager pm) {    AppInfo appInfo = new AppInfo();    appInfo.setAppName(pm.getApplicationLabel(app).toString());//应用名称    appInfo.setAppIcon(app.loadIcon(pm));//应用icon    appInfo.setPkgName(app.packageName);//应用包名，用来卸载    File file = new File(app.sourceDir);    float size = file.length();    DecimalFormat df = new DecimalFormat("#.00");    appInfo.setAppSize(df.format(size / (1024 * 1024)) + "M");//应用大小，M单位，保留两位小数    PackageInfo packageInfo = null;    try {        packageInfo = pm.getPackageInfo(app.packageName, 0);        long lastUpdateTime = packageInfo.lastUpdateTime;//应用最近一次更新时间        appInfo.setUpdateDate(TimeUtil.time2Ago(lastUpdateTime));//将毫秒时间对比当前时间转换为多久以前    } catch (PackageManager.NameNotFoundException e) {        e.printStackTrace();    }    return appInfo;}