async void OnLoginButtonClicked (object sender, EventArgs e)
{
var user = new User {
Username = usernameEntry.Text,
Password = passwordEntry.Text
};
var isValid = AreCredentialsCorrect (user);
if (isValid) {
App.IsUserLoggedIn = true;
Navigation.InsertPageBefore (new MainPageCS (), this);
await Navigation.PopAsync ();
} else {
messageLabel.Text = "Login failed";
passwordEntry.Text = string.Empty;
}
}
async void OnSignUpButtonClicked (object sender, EventArgs e)
{
var user = new User () {
Username = usernameEntry.Text,
Password = passwordEntry.Text,
Email = emailEntry.Text
};
// Sign up logic goes here
var signUpSucceeded = AreDetailsValid (user);
if (signUpSucceeded) {
var rootPage = Navigation.NavigationStack.FirstOrDefault ();
if (rootPage != null) {
App.IsUserLoggedIn = true;
Navigation.InsertPageBefore (new MainPage (), Navigation.NavigationStack.First ());
await Navigation.PopToRootAsync ();
}
} else {
messageLabel.Text = "Sign up failed";
}
}
bool AreCredentialsCorrect (User user)
{
return user.Username == Constants.Username && user.Password == Constants.Password;
}
bool AreDetailsValid (User user)
{
return (!string.IsNullOrWhiteSpace (user.Username) && !string.IsNullOrWhiteSpace (user.Password) && !string.IsNullOrWhiteSpace (user.Email) && user.Email.Contains ("@"));
}
bool AreCredentialsCorrect(User user)
{
return(user.Username == Constants.Username && user.Password == Constants.Password);
}
