WindowsPhone8 自動擷取 ip 以及 目前所在城市資訊

    示例代碼如下：

/// <summary>
    /// 擷取目前地理資訊
    /// </summary>
    public static class GetCurrentAddressInfo
    {
        #region 擷取目前的位址
        /// <summary>
        /// 擷取目前的位址
        /// </summary>
        public static void GetCurrentAddress()
        {
            //擷取目前位址的 API
            UriBuilder urlbuilder =
               new UriBuilder("http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js");

            //建立 HttpWebRequest 對象
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(urlbuilder.Uri);

            //異步調用
            IAsyncResult result = request.BeginGetResponse(ResponseCallback, request);
        }
        static void ResponseCallback(IAsyncResult result)
        {
            App _currentApp = (App)Application.Current;

            //擷取異步傳回的資訊
            HttpWebRequest request = (HttpWebRequest)result.AsyncState;

            //建立 HttpWebResponse 對象
            HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(result);

            //讀取檔案流
            using (StreamReader reader = new StreamReader(response.GetResponseStream()))
            {
                //Json 串
                String strJson = @reader.ReadToEnd()
                .Replace("var remote_ip_info = ", "")
                .Replace(";", "");

                Byte[] buffer = System.Text.Encoding.UTF8.GetBytes(strJson);
                using (MemoryStream ms = new MemoryStream(buffer))
                {
                    //調用 DataContractJsonSerializer 解析Json
                    DataContractJsonSerializer serializer = new 
                    DataContractJsonSerializer(_currentApp._address.GetType());
                    _currentApp._address = (Address)serializer.ReadObject(ms);
                }
            }
        }
        #endregion
    }           

#region Address 位址類
    /// <summary>
    /// Address 位址類
    /// </summary>
    public class Address
    {
        /// <summary>
        /// id 省份或城市的編号
        /// </summary>
        public String id { get; set; }

        /// <summary>
        /// updateTime 更新時間
        /// </summary>
        public String updateTime { get; set; }

        /// <summary>
        /// Country 國家
        /// </summary>
        public String country { get; set; }

        /// <summary>
        /// Province 省份
        /// </summary>
        public String province { get; set; }

        /// <summary>
        /// City 市
        /// </summary>
        public String city { get; set; }

        /// <summary>
        /// cityPhoto 城市圖檔
        /// </summary>
        public String cityPhoto { get; set; }

        /// <summary>
        /// weatherInfo 今日天氣實況
        /// </summary>
        public String toDayweather { get; set; }

        /// <summary>
        /// lifeInfo 生活指數
        /// </summary>
        public String lifeInfo { get; set; }

        /// <summary>
        /// cityIntroduce 城市介紹
        /// </summary>
        public String cityIntroduce { get; set; }
    }
    #endregion           

源碼下載下傳位址： http://download.csdn.net/download/yimiyuangguang/6945069

以上案例僅供學習參考，如有不足之處還請提出指正，謝謝！