NetworkActivityHandler

gistfile1.cs

public class NetworkActivityHandler : DelegatingHandler
    {
        protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, System.Threading.CancellationToken cancellationToken)
        {
            using (new NetworkActivityDisposable())
            {
                return base.SendAsync(request, cancellationToken);
            }
        }

        private class NetworkActivityDisposable : IDisposable
        {
            public NetworkActivityDisposable()
            {
#if __IOS__
                MonoTouch.UIKit.UIApplication.SharedApplication.NetworkActivityIndicatorVisible = true;
#endif
            }
            public void Dispose()
            {
#if __IOS__
                MonoTouch.UIKit.UIApplication.SharedApplication.NetworkActivityIndicatorVisible = false;
#endif
            }
        }
    }