获取不到版本号 about privacysentry HOT 7 CLOSED

    public static int getAppVersionCode(Context context) {
        // 获取手机的包管理者
        PackageManager pm = context.getPackageManager();
        try {
            PackageInfo packInfo = pm.getPackageInfo(getPackageName(context), 0);
            return packInfo.versionCode;
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
            return 0;
        }
    }