小賢的部落格

 public static bool IsNetworkAvailable()
        {
            bool isAvailable = false;

            var profile = NetworkInformation.GetInternetConnectionProfile();

            if (profile == null) {
                return false;
            }

            var connections = profile.GetNetworkConnectivityLevel();

            switch (connections) {
                case NetworkConnectivityLevel.ConstrainedInternetAccess:
                case NetworkConnectivityLevel.InternetAccess:

                    isAvailable = true;

                    break;
                case NetworkConnectivityLevel.LocalAccess:
                case NetworkConnectivityLevel.None:

                    isAvailable = false;

                    break;

                default:
                    break;
            }

            return isAvailable;
        }

寫的很棒很詳細的一篇文章:

http://blog.csdn.net/liulala16/article/details/8271673 (簡)

.h檔

#import <mach/mach_time.h>

App樣式:

1.Pivots

 

// Get

HttpWebRequest httpWebRequest = WebRequest.CreateHttp(url);
httpWebRequest.Method = HttpMethod.Get.Method;

httpWebRequest.Headers = new WebHeaderCollection();
httpWebRequest.Headers["header"] = header;


    using (var response = await httpWebRequest.GetResponseAsync()) {

        using (Stream stream = response.GetResponseStream()) {

            using (StreamReader reader = new StreamReader(stream)) {

                // Read the content.
                result = reader.ReadToEnd();
            }
        }
    }