Xamarin 简单的网络请求

 //try
            //{
            //    var httpReq = (HttpWebRequest)HttpWebRequest.Create(new Uri(replaceUrl));
            //    var httpRes = (HttpWebResponse)httpReq.GetResponse();
            //    if (httpRes.StatusCode == HttpStatusCode.OK)
            //    {
            //        string res = new StreamReader(httpRes.GetResponseStream()).ReadToEnd();
            //        res = res.Replace("\"", "'");
            //        Model.Version result = res.ToObject<Model.Version>();
            //        if (result != null && result.State && result.EjePdaList != null && result.EjePdaList.Count > 0)
            //        {
            //            if (versionName != result.EjePdaList[0].Vosoin)
            //            {

            //                AlertDialogBuilder(pack, "下载更新", result.EjePdaList[0].Rem, result.EjePdaList[0].Geturl);
            //            }

            //        }
            //    }
            //}
            //catch (Exception ex)
            //{
            //    this.ApplicationContext.MessagesShow("接口错误：" + ex.Message);
            //}