public async void OnAuthCompleted(object sender, AuthenticatorCompletedEventArgs e) { if (sender is OAuth2Authenticator authenticator) { authenticator.Completed -= OnAuthCompleted; authenticator.Error -= OnAuthError; } if (e.IsAuthenticated) { User user = null; switch (loginFrom) { case Constants.FROM_GOOGLE: user = await GetGoogleUserInfo(e.Account); break; case Constants.FROM_FACEBOOK: user = await GetFacebookUserInfo(e.Account); break; } if (account != null) { store.Delete(account, Constants.AppName); } await store.SaveAsync(account = e.Account, Constants.AppName); // salva dados do usuário na base de dados local App.usrCorrente = await UsuariosBD.InsereAtualizaUsuario(user, loginFrom); // mostra página inicial await App.MostrarPaginaInicial(); } }