private async void OnLoginButtonClicked(object sender, EventArgs e) { try { LoginViewModel services = new LoginViewModel(); var getLoginDetails = await services.CheckLoginIfExists(usernameEntry.Text, passwordEntry.Text); // var accesstoken = await services.CheckLoginIfExists(usernameEntry.Text, passwordEntry.Text); //Settings.AccessToken = accesstoken; if (getLoginDetails) { await DisplayAlert("gelukt!", "U bent nu ingelogd", "Ok"); LoggedinUser.Username = usernameEntry.Text; LoggedinUser.Password = passwordEntry.Text; LoggedinUser.AccessToken = usernameEntry.Text + ":" + passwordEntry.Text; await Navigation.PushModalAsync(new RootPage()); // await RootPage.ChangeLoginButton(); } else { await DisplayAlert("Inloggen mislukt!", "Gebruikersnaam en/of wachtwoord niet correct", "Ok"); } } catch (Exception ex) { Console.WriteLine(ex); } }