public override void ViewDidLayoutSubviews( )
{
base.ViewDidLayoutSubviews( );
HeaderLabel.Frame = new CGRect(0, View.Frame.Height * .05f, View.Frame.Width, HeaderLabel.Bounds.Height);
Version.Layer.Position = new CGPoint((View.Bounds.Width - Version.Bounds.Width) / 2, HeaderLabel.Frame.Bottom);
// measure and size the username field
UserNameField.Bounds = new CGRect(0, 0, View.Bounds.Width * .40f, 0);
CGSize size = UserNameField.SizeThatFits(UserNameField.Bounds.Size);
UserNameField.Bounds = new CGRect(UserNameField.Bounds.X, UserNameField.Bounds.Y, UserNameField.Bounds.Width, (float)System.Math.Ceiling(size.Height * 1.25f));
UserNameField.Layer.Position = new CGPoint((View.Bounds.Width - UserNameField.Bounds.Width) / 2, HeaderLabel.Frame.Bottom + 50);
PasswordField.Bounds = new CGRect(0, 0, View.Bounds.Width * .40f, 0);
size = PasswordField.SizeThatFits(PasswordField.Bounds.Size);
PasswordField.Bounds = new CGRect(PasswordField.Bounds.X, PasswordField.Bounds.Y, PasswordField.Bounds.Width, (float)System.Math.Ceiling(size.Height * 1.25f));
PasswordField.Layer.Position = new CGPoint((View.Bounds.Width - PasswordField.Bounds.Width) / 2, UserNameField.Frame.Bottom + 10);
LoginButton.Bounds = new CGRect(0, 0, 100, LoginButton.Bounds.Height);
LoginButton.Layer.Position = new CGPoint((View.Bounds.Width - LoginButton.Bounds.Width) / 2, PasswordField.Frame.Bottom + 30);
LoginResult.Frame = new CGRect(0, LoginButton.Frame.Bottom + 20, View.Frame.Width, LoginResult.Bounds.Height);
float width = 100;
float height = 100;
BusyIndicator.Frame = new RectangleF(((float)View.Bounds.Width - width) / 2, (float)LoginButton.Frame.Bottom + 100, width, height);
}