在手机上查看互联网连接

Question

我想检查一下我的手机是否可以连接到互联网.我已经看过几个问题.其中一个是问题.它说使用NetworkInterface.GetIsNetworkAvailable()这个,我尝试了.我已将我的电脑与互联网断开连接,并且还关闭DataConnection了模拟器,但这NetworkInterface.GetIsNetworkAvailable()始终是真的.但同时我也检查NetworkInterfaceType.None并有趣地它将变为空.任何人都可以解释我在哪里缺少信息？

尝试: -

public static void CheckNetworkAvailability()
    {
       // this is coming true even when i disconnected my pc from internet.
       // i also make the dataconnection off of the emulator
        var fg = NetworkInterface.GetIsNetworkAvailable();

        var ni = NetworkInterface.NetworkInterfaceType;
        // this part is coming none  
        if (ni == NetworkInterfaceType.None)
            IsConnected = false;

    }

任何帮助表示赞赏:)

Answer 1

我正在使用以下代码检查设备是否可以访问互联网,如果它连接到wifi或数据连接..

 public void UpdateNetworkInformation()
    {
        // Get current Internet Connection Profile.
        ConnectionProfile internetConnectionProfile = Windows.Networking.Connectivity.NetworkInformation.GetInternetConnectionProfile();

        //air plan mode is on...
        if (internetConnectionProfile == null)
        {
            Is_Connected = false;
            return;
        }

        //if true, internet is accessible.
        this.Is_InternetAvailable = internetConnectionProfile.GetNetworkConnectivityLevel() == NetworkConnectivityLevel.InternetAccess;

        // Check the connection details.
        else if (internetConnectionProfile.NetworkAdapter.IanaInterfaceType != 71)// Connection is not a Wi-Fi connection. 
        {
            Is_Roaming = internetConnectionProfile.GetConnectionCost().Roaming;

            /// user is Low on Data package only send low data.
            Is_LowOnData = internetConnectionProfile.GetConnectionCost().ApproachingDataLimit;

            //User is over limit do not send data
            Is_OverDataLimit = internetConnectionProfile.GetConnectionCost().OverDataLimit;

        }
        else //Connection is a Wi-Fi connection. Data restrictions are not necessary. 
        {
            Is_Wifi_Connected = true;
        }
    }

编辑: 对于简单的互联网连接,您可以使用下面的代码.

  System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable();

希望这可以帮助!

Answer 2

NetworkInterface.GetIsNetworkAvailable()即使您将网络条件模拟为没有网络,模拟器也始终返回true.

我自己遇到了这个问题,测试此行为的唯一真正方法是将应用程序部署到运行Windows Phone的物理设备,并在关闭数据的情况下对其进行测试.