Detect backspace Event in UITextField

Question

I am searching for solutions on how to capture a backspace event, most Stack Overflow answers are in Objective-C but I need on Swift language.

First I have set deleg

Answer 1

Try this

public func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String) -> Bool {

if(string == "") {

        print("Backspace pressed");
        return true;
    }
}

Note: You can return "true" if you want to allow backspace. Else you can return "false".