packageInfos = getPackageManager().getInstalledPackages( PackageManager.GET_UNINSTALLED_PACKAGES | PackageManager.GET_ACTIVITIES); // 构造一个新的ArrayList实例初始产能为零 userInfos = new ArrayList<PackageInfo>(); // /列出所有的app包的信息 for (int i = 0; i < packageInfos.size(); i++) {...