问我如何在Xamarin.iOS中使用谷歌的people API？

EN

Auth = new OAuth2Authenticator(
             Configuration.ClientId,
             string.Empty,
             "https://www.googleapis.com/auth/contacts",
             new Uri("https://accounts.google.com/o/oauth2/v2/auth"),
             new Uri(Configuration.RedirectUrl),
             new Uri("https://www.googleapis.com/oauth2/v4/token"),
             isUsingNativeUI: true);

            var viewController = Auth.GetUI();
            PresentViewController(viewController, true, null);

            Auth.Completed += Auth_Completed;
            Auth.Error += Auth_Error;



 private void Auth_Error(object sender, AuthenticatorErrorEventArgs e)
        {

        }



 private  void  Auth_Completed(object sender, AuthenticatorCompletedEventArgs e)
        {

            // SFSafariViewController doesn't dismiss itself
            DismissViewController(true, null);

            if (e.IsAuthenticated)
            {
            }
     }