private static bool IsNetworkAvailable(out NetworkReachabilityFlags flags)
{
if (defaultRouteReachability == null)
{
defaultRouteReachability = new MonoTouch.SystemConfiguration.NetworkReachability(new IPAddress(0));
defaultRouteReachability.SetCallback(OnChange);
defaultRouteReachability.Schedule(CFRunLoop.Current, CFRunLoop.ModeDefault);
}
if (!defaultRouteReachability.TryGetFlags(out flags))
{
return(false);
}
return(IsReachableWithoutRequiringConnection(flags));
}
public static bool IsAdHocWiFiNetworkAvailable(out NetworkReachabilityFlags flags)
{
if (adHocWiFiNetworkReachability == null)
{
adHocWiFiNetworkReachability =
new MonoTouch.SystemConfiguration.NetworkReachability(new IPAddress(new byte[] { 169, 254, 0, 0 }));
adHocWiFiNetworkReachability.SetCallback(OnChange);
adHocWiFiNetworkReachability.Schedule(CFRunLoop.Current, CFRunLoop.ModeDefault);
}
if (!adHocWiFiNetworkReachability.TryGetFlags(out flags))
{
return(false);
}
return(IsReachableWithoutRequiringConnection(flags));
}
// Is the host reachable with the current network configuration
public static bool IsHostReachable(string host)
{
if (host == null || host.Length == 0)
{
return(false);
}
using (var r = new MonoTouch.SystemConfiguration.NetworkReachability(host))
{
NetworkReachabilityFlags flags;
if (r.TryGetFlags(out flags))
{
return(IsReachableWithoutRequiringConnection(flags));
}
}
return(false);
}
public static NetworkReachabilityResult RemoteHostStatus()
{
NetworkReachabilityFlags flags;
bool reachable;
if (remoteHostReachability == null)
{
remoteHostReachability = new MonoTouch.SystemConfiguration.NetworkReachability(HostName);
// Need to probe before we queue, or we wont get any meaningful values
// this only happens when you create NetworkReachability from a hostname
reachable = remoteHostReachability.TryGetFlags(out flags);
remoteHostReachability.SetCallback(OnChange);
remoteHostReachability.Schedule(CFRunLoop.Current, CFRunLoop.ModeDefault);
}
else
{
reachable = remoteHostReachability.TryGetFlags(out flags);
}
if (!reachable)
{
return(NetworkReachabilityResult.NotReachable);
}
if (!IsReachableWithoutRequiringConnection(flags))
{
return(NetworkReachabilityResult.NotReachable);
}
if ((flags & NetworkReachabilityFlags.IsWWAN) != 0)
{
return(NetworkReachabilityResult.ReachableViaCarrierDataNetwork);
}
return(NetworkReachabilityResult.ReachableViaWiFiNetwork);
}