Numeric keyboard with decimal

Question

I´m building an app with equations and I have used a numeric keyboard but I want to have a decimal slot on it. The default is only numbers. How do you add a decimal input on

Answer 1

set keyboard type to textField in swift 3

@IBOutlet weak var txtNumber: UITextField!  

override func viewDidLoad(){

    self.txtNumber.keyboardType = .decimalPad
}