class ViewController: UIViewController, UITextFieldDelegate {

    @IBOutlet weak var text1: UITextField!
    @IBOutlet weak var text2: UITextField!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        text1.delegate = self
        text2.delegate = self

    }
    
    func textFieldShouldReturn(_ textField: UITextField) -> Bool {
        text1.resignFirstResponder()
        
        return true
    }
}

class ViewController: UIViewController {
    
    @IBOutlet weak var text1: UITextField!
    @IBOutlet weak var text2: UITextField!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        setupTextFields()
        
    }
    
    func setupTextFields() {
        let toolbar = UIToolbar()
        let flexSpace = UIBarButtonItem(barButtonSystemItem: .flexibleSpace,
                                        target: nil, action: nil)
        let doneButton = UIBarButtonItem(title: "Done", style: .done,
                                         target: self, action: #selector(doneButtonTapped))
        
        toolbar.setItems([flexSpace, doneButton], animated: true)
        toolbar.sizeToFit()
        
        text1.inputAccessoryView = toolbar
        text2.inputAccessoryView = toolbar
    }
    
    @objc func doneButtonTapped() {
        view.endEditing(true)
    }
}

class ViewController: UIViewController {
    
    @IBOutlet weak var text1: UITextField!
    @IBOutlet weak var text2: UITextField!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let tap = UITapGestureRecognizer(target: view, action: #selector(UIView.endEditing))
        tap.cancelsTouchesInView = false
        view.addGestureRecognizer(tap)
        
    }