iOS app “next” key won't go to the next text field

Question

I have a simple scene (using storyboard in IB) with a Username and Password text box. I\'ve set the keyboard to close when you are on the Password text field but can\'t get

Answer 1

The swift version could be:

extension LoginViewController: UITextFieldDelegate {
    func textFieldShouldReturn(_ textField: UITextField) -> Bool {
        if textField == self.emailTextField {
            passwordTextField.becomeFirstResponder()
        } else if textField == self.passwordTextField {
            passwordTextField.resignFirstResponder()
        }
        return true
    }
}