private void OnLoginStateChanged(LoginStateChangedMessage message) { if (message.IsLoggedIn) { //PushHelper.Start(); //InitializeLongPoll(); LoadCurrentUser(); try { ServiceLocator.Vkontakte.Stats.TrackVisitor(); } catch { } } else { ServiceLocator.LongPollHandler.Stop(); PushHelper.Stop(); AppSettings.AccessToken = null; ServiceLocator.Vkontakte.AccessToken = null; CurrentUser = null; } }