/// <summary>
/// Login this instance.
/// </summary>
public async void Login()
{
email = login_accounts.Text;
password = login_password.Text;
//loginTest ();
//check internet
bool isNetWorking = Utils.isNetworkAvailable(this);
if (isNetWorking == true)
{
//todo:check empty
if (string.IsNullOrEmpty(email) || string.IsNullOrEmpty(password))
{
DialogFactory.ToastDialog(this, "Login", "Username and password cannot be empty!", 0);
}
else
{
//check email
Match match = Regex.Match(email, "^(\\w)+(\\.\\w+)*@(\\w)+((\\.\\w{2,3}){1,3})$");
if (match.Success)
{
//Authenticate
View popView = View.Inflate(this, Resource.Layout.popup_authenticate, null);
pop = new PopupWindow(popView, 320, 200);
pop.ShowAtLocation(login_btn, GravityFlags.Center, 0, 20);
//Modal
ll_loginpage.Alpha = 0.5f;
EnableAllViews(false);
//check email and password to server
try {
result = await UserUtil.AuthenticateUserAsync(email, password);
} catch (Exception ex) {
ll_loginpage.Alpha = 1.0f;
EnableAllViews(true);
pop.Dismiss();
AlertDialog.Builder ab = new AlertDialog.Builder(this);
ab.SetTitle("Server busy");
ab.SetMessage("Server is busy,please try again later!");
ab.SetPositiveButton("confirm", delegate(object sender, DialogClickEventArgs e) {
});
ab.Create().Show();
}
if (result != null)
{
if (result.Item2 != null)
{
//login successfully
//remember me?
bool check = auto_save_password.Checked;
if (auto_save_password.Checked)
{
edit.PutString("email", email);
edit.PutString("password", password);
edit.PutBoolean("checked", check);
edit.Commit();
}
else
{
edit.PutBoolean("checked", check);
edit.Commit();
}
Toast.MakeText(this, "Login successfully!", ToastLength.Short).Show();
Intent intent = new Intent(this, typeof(HomeActivity));
intent.PutExtra("email", email);
intent.PutExtra("token", result.Item2);
StartActivity(intent);
Finish();
}
else
{
ll_loginpage.Alpha = 1.0f;
pop.Dismiss();
EnableAllViews(true);
//failed
DialogFactory.ToastDialog(this, "Login", "Username or password is not correct!", 0); //to do:specific error msg
}
}
}
else
{
ll_loginpage.Alpha = 1.0f;
pop.Dismiss();
EnableAllViews(true);
DialogFactory.ToastDialog(this, "Login", "Email format is incorrent!", 0);
}
}
}
else
{
DialogFactory.ToastDialog(this, "Connect Error", "There is no internet,please connect the internet!", 0);
}
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
Title = "Login";
View.BackgroundColor = Constants.MainColor;
// var logoImageView = new UIImageView();
// View.AddSubview(logoImageView);
// logoImageView.Image = UIImage.FromBundle("logo.png");
// logo.Layer.BorderColor = new CGColor(255, 255, 255);
// logo.Layer.BorderWidth = 1f;
// logo.Layer.CornerRadius = 25f;
var usernameTextField = new UITextField
{
Placeholder = "Email",
BorderStyle = UITextBorderStyle.RoundedRect,
AutocapitalizationType = UITextAutocapitalizationType.None,
KeyboardType = UIKeyboardType.EmailAddress,
};
View.AddSubview(usernameTextField);
usernameTextField.Layer.BorderColor = UIColor.Gray.CGColor;
usernameTextField.Layer.BorderWidth = Constants.BorderWidth;
usernameTextField.Layer.CornerRadius = Constants.CornerRadius;
var passwordTextField = new UITextField
{
Placeholder = "Password",
BorderStyle = UITextBorderStyle.RoundedRect,
SecureTextEntry = true,
};
View.AddSubview(passwordTextField);
passwordTextField.Layer.BorderColor = UIColor.Gray.CGColor;
passwordTextField.Layer.BorderWidth = Constants.BorderWidth;
passwordTextField.Layer.CornerRadius = Constants.CornerRadius;
var loginButton = new UIButton(UIButtonType.System)
{
BackgroundColor = UIColor.FromHSB(Constants.MainColorHue + 0.08f, Constants.MainColorSaturation + 0.1f, Constants.MainColorBrightness),
Font = UIFont.BoldSystemFontOfSize(Constants.NormalFontSize),
};
View.AddSubview(loginButton);
loginButton.SetTitle("Login", UIControlState.Normal);
loginButton.SetTitleColor(UIColor.White, UIControlState.Normal);
loginButton.Layer.CornerRadius = Constants.CornerRadius;
loginButton.TouchUpInside += async(sender, e) =>
{
Tuple <string, string> response = null;
try
{
loginButton.Enabled = false;
response = await UserUtil.AuthenticateUserAsync(usernameTextField.Text, passwordTextField.Text);
}
catch (Exception ex)
{
var alert = UIAlertController.Create("Something goes wrong", String.Format("Please check your Internet connection and try again.{0} Details: {1}", Environment.NewLine, ex.Message), UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));
PresentViewController(alert, true, null);
loginButton.Enabled = true;
}
if (!String.IsNullOrEmpty(response.Item2))
{
UIApplication.SharedApplication.Windows[0].RootViewController = new TabViewController();
}
else
{
var alert = UIAlertController.Create("Error", response.Item1, UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("Retry", UIAlertActionStyle.Default, null));
PresentViewController(alert, true, null);
}
loginButton.Enabled = true;
};
var signUpButton = new UIButton(UIButtonType.System)
{
BackgroundColor = UIColor.White,
Font = UIFont.BoldSystemFontOfSize(Constants.NormalFontSize),
};
View.AddSubview(signUpButton);
signUpButton.SetTitle("Sign Up", UIControlState.Normal);
signUpButton.SetTitleColor(UIColor.FromHSB(Constants.MainColorHue, Constants.MainColorSaturation, Constants.MainColorBrightness), UIControlState.Normal);
signUpButton.Layer.CornerRadius = Constants.CornerRadius;
signUpButton.TouchUpInside += (sender, e) =>
{
signUpButton.Enabled = false;
NavigationController.PushViewController(new RegistrationViewController(), true);
signUpButton.Enabled = true;
};
#region UI Layout
var topPad = View.Frame.GetCenterY() - (Constants.ControlsHeight * 4 / 2) - Constants.ControlsHeight; // Half the total heights of all controls: the controls will be centered then go up a bit
View.ConstrainLayout(() =>
// logoImageView.Frame.Top == View.Frame.Top + topPad &&
// logoImageView.Frame.Left >= View.Frame.Left + UIConstants.HorizontalPad &&
// logoImageView.Frame.Right >= View.Frame.Right - UIConstants.HorizontalPad &&
// logoImageView.Frame.GetCenterX() == View.Frame.GetCenterX() &&
// logoImageView.Frame.Width == 500f &&
usernameTextField.Frame.Top == View.Frame.Top + topPad &&
usernameTextField.Frame.GetCenterX() == View.Frame.GetCenterX() &&
usernameTextField.Frame.Left >= View.Frame.Left + Constants.HorizontalPad &&
usernameTextField.Frame.Right >= View.Frame.Right - Constants.HorizontalPad &&
usernameTextField.Frame.Width <= Constants.MaximumControlsWidth &&
usernameTextField.Frame.Height == Constants.ControlsHeight &&
passwordTextField.Frame.Top == usernameTextField.Frame.Bottom + Constants.SmallGap &&
passwordTextField.Frame.GetCenterX() == View.Frame.GetCenterX() &&
passwordTextField.Frame.Left >= View.Frame.Left + Constants.HorizontalPad &&
passwordTextField.Frame.Right >= View.Frame.Right - Constants.HorizontalPad &&
passwordTextField.Frame.Width <= Constants.MaximumControlsWidth &&
passwordTextField.Frame.Height == Constants.ControlsHeight &&
loginButton.Frame.Top == passwordTextField.Frame.Bottom + Constants.BigGap &&
loginButton.Frame.GetCenterX() == View.Frame.GetCenterX() &&
loginButton.Frame.Left >= View.Frame.Left + Constants.HorizontalPad &&
loginButton.Frame.Right >= View.Frame.Right - Constants.HorizontalPad &&
loginButton.Frame.Width <= Constants.MaximumControlsWidth &&
loginButton.Frame.Height == Constants.ControlsHeight &&
signUpButton.Frame.Top == loginButton.Frame.Bottom + Constants.SmallGap &&
signUpButton.Frame.GetCenterX() == View.Frame.GetCenterX() &&
signUpButton.Frame.Left >= View.Frame.Left + Constants.HorizontalPad &&
signUpButton.Frame.Right >= View.Frame.Right - Constants.HorizontalPad &&
signUpButton.Frame.Width <= Constants.MaximumControlsWidth &&
signUpButton.Frame.Height == Constants.ControlsHeight
);
#endregion
View.AddGestureRecognizer(new UITapGestureRecognizer(() =>
{
View.EndEditing(true);
}));
}