how to add an action on UITextField return key?

Question

I have a button and text textfield in my view. when i click on the textfield a keyboard appears and i can write on the textfield and i also able to dismiss the keyboard by c

Answer 1

While the other answers work correctly, I prefer doing the following:

In viewDidLoad(), add

self.textField.addTarget(self, action: #selector(onReturn), for: UIControl.Event.editingDidEndOnExit)

and define the function

@IBAction func onReturn() {
    self.textField.resignFirstResponder()
    // do whatever you want...
}