>未连接
>通过WLAN连接(WiFi)
>通过WWAN(蜂窝数据)连接
>连接到计量网络
以便提供下载大尺寸内容的选项.并且还能感知网络可用性的重大变化.
目前,我只能使用NetworkInterface类的GetIsNetworkAvailable方法检查互联网是否连接.
NetworkInterface.GetIsNetworkAvailable();
解决方法
要检查互联网是否连接使用GetInsNetworkAvailable方法的NetworkInterface类.
bool isInternetConnected = NetworkInterface.GetIsNetworkAvailable();
GetIsNetworkAvailable() –
Summary: Indicates whether any network connection is available.
Returns:true
if a network connection is available; otherwise,false
.
2.通过WWLN(WiFi)检查Internet连接的可用性
要检查通过WWAN连接的互联网是否使用ConnectionProfile类的IsWlanConnectionProfile属性
ConnectionProfile InternetConnectionProfile = NetworkInformation.GetInternetConnectionProfile(); bool isWLANConnection = (InternetConnectionProfile == null)?false:InternetConnectionProfile.IsWlanConnectionProfile;
IsWlanConnectionProfile
Summary: Gets a value that indicates if connection profile is a WLAN (WiFi) connection. This determines whether or not
WlanConnectionProfileDetails is null.
Returns: Indicates if the connection profile represents a WLAN (WiFi) connection.
3.通过WWAN(手机)检查Internet连接的可用性
检查通过WWAN连接的互联网是否使用ConConnectionProfile类的IsWwanConnectionProfile属性
ConnectionProfile InternetConnectionProfile = NetworkInformation.GetInternetConnectionProfile(); bool isWLANConnection = (InternetConnectionProfile == null)?false:InternetConnectionProfile.IsWwanConnectionProfile;
IsWwanConnectionProfile
Summary: Gets a value that indicates if connection profile is a WWAN (mobile) connection. This determines whether or not WwanConnectionProfileDetails is null.
Returns: Indicates if the connection profile represents a WWAN (mobile) connection.
4.检查计量网络
要通过计量连接检查Internet是否可达,请在NetworkInterface类上使用GetConnectionCost方法.
var connectionCost = NetworkInformation.GetInternetConnectionProfile().GetConnectionCost(); if (connectionCost.NetworkCostType == NetworkCostType.Unknown || connectionCost.NetworkCostType == NetworkCostType.Unrestricted) { //Connection cost is unknown/unrestricted } else { //Metered Network }
参考(更详细的回答)
https://msdn.microsoft.com/en-us/library/windows/apps/xaml/JJ835821(v=win.10).aspx
https://msdn.microsoft.com/en-us/library/windows/apps/xaml/windows.networking.connectivity.networkcosttype.aspx?cs-save-lang=1&cs-lang=csharp#code-snippet-1
5.管理网络可用性更改
要感知重要的网络可用性更改,请使用NetworkInformation类的eventNetworkStatusChanged
// register for network status change notifications networkStatusCallback = new NetworkStatusChangedEventHandler(OnNetworkStatusChange); if (!registeredNetworkStatusNotif) { NetworkInformation.NetworkStatusChanged += networkStatusCallback; registeredNetworkStatusNotif = true; } async void OnNetworkStatusChange(object sender) { // get the ConnectionProfile that is currently used to connect to the Internet ConnectionProfile InternetConnectionProfile = NetworkInformation.GetInternetConnectionProfile(); if (InternetConnectionProfile == null) { await _cd.RunAsync(CoreDispatcherPriority.Normal,() => { rootPage.NotifyUser("Not connected to Internet\n",NotifyType.StatusMessage); }); } else { connectionProfileInfo = GetConnectionProfile(InternetConnectionProfile); await _cd.RunAsync(CoreDispatcherPriority.Normal,() => { rootPage.NotifyUser(connectionProfileInfo,NotifyType.StatusMessage); }); } internetProfileInfo = ""; }
参考
@L_403_4@
https://msdn.microsoft.com/en-us/library/windows/apps/xaml/hh452991.aspx
http://www.developerinsider.in/2016/03/13/check-internet-connectivity-in-uwp/
希望对某人有帮助