How to check if textfield is empty in real time?

Asked Feb 06 '18 at 13:39

Active Apr 09 '18 at 21:36

Viewed 212 times

I'm trying to change the appearance of my UIButton when the user has filled in both UITextFields, but I'm unable to get past a while loop. Here's my code:

override func viewDidLoad() {
        super.viewDidLoad()
        FirstNameTextField.becomeFirstResponder()
        FirstNameTextField.setBottomBorder()
        LastNameTextField.setBottomBorder()
        SignUpAndAccept.layer.cornerRadius = 10
        SignUpAndAccept.clipsToBounds = true
        SignUpAndAccept.isEnabled = false
        self.navigationController?.navigationBar.isHidden = true
        test()
            }


        func test(){
        repeat {
            if ((LastNameTextField.text?.isEmpty ?? true) && (FirstNameTextField.text?.isEmpty ?? true)){
                SignUpAndAccept.backgroundColor = UIColor.gray
                SignUpAndAccept.isEnabled = false
                }
            else if((LastNameTextField.text?.isEmpty ?? false) && (FirstNameTextField.text?.isEmpty ?? false)) {
                SignUpAndAccept.backgroundColor = UIColor.purple
                SignUpAndAccept.isEnabled = true
            }
        }while (SignUpAndAccept.isEnabled == false)
}

edited Apr 09 '18 at 21:36

asked Feb 06 '18 at 13:39

Aaron Owusu

1

Closely related: https://stackoverflow.com/q/28394933/3151675 – Tamás Sengel Feb 06 '18 at 13:42
variable names should be in camelCase. – Adrian Feb 06 '18 at 13:46
@Adrian That's the programmer's decision, not a requirement. Although it is a good practice so that your style agrees with the majority of libraries out there and is more easily readable. – Feb 06 '18 at 13:48
Thanks guys @Adrian willDo – Aaron Owusu Feb 06 '18 at 13:52
@ColGraff True. – Aaron Owusu Feb 06 '18 at 13:53

How to check if textfield is empty in real time?

0 Answers0