Programmatically Create a Padded Button iOS 13 & Swift 5

Inside your view create a button object

let sumbitButton: UIButton = {

    let button = UIButton()

Set the inset then the content

    button.titleEdgeInsets = UIEdgeInsets(top: 10, left: 20, bottom: 10, right: 20)

    button.layer.cornerRadius = 15.0

    button.setTitle("Submit", for: .normal)

    button.setTitleColor(.blue, for: .normal)

    button.backgroundColor = .white

    button.sizeToFit()

Attach a function to the button

    button.addTarget(self, action: #selector(submitButtonPressed), for: .touchUpInside)
return button

}()

Make sure you declare the function

@objc func submitButtonPressed(){ print("submitted" }

Done