在不使用Segue的情况下在Container Views之间委派

Question

我正在尝试将文本从一个textField传递到另一个textField（它们都位于两个不同的containerViews中）。我尝试用委托完成这个。我已经在这里阅读了大量相关的问题，在堆栈溢出并阅读了几篇文章，所以，我认为我做得很好，除了一件事：我不知道如何委托没有segue。这是代码：

    protocol AddOneWordViewControllerDelegate: class {
    func changeTexeValue(_ text: String?)
}

class AddOneWordViewController: UIViewController, UITextFieldDelegate {

    @IBOutlet weak var oneWordAddWord: UITextField!
    weak var delegate: AddOneWordViewControllerDelegate?

    override func viewDidLoad() {
        super.viewDidLoad()
    }
    @IBAction func addOneWordWordChanged(_ sender: UITextField) {
        self.delegate?.changeTexeValue(oneWordAddWord.text!)
        print ("Value of the textField did change \(oneWordAddWord.text!)")
    } // this action is from textField, named "Value Changed"
}
    class AddTwoWordsViewController: UIViewController, UITextFieldDelegate, AddOneWordViewControllerDelegate {

    @IBOutlet weak var twoWordsAddWord: UITextField!
    override func viewDidLoad() {
        super.viewDidLoad()
}

    func changeTexeValue(_ text: String?) {
        self.twoWordsAddWord.text = text
        print("Delegate is working")
    }
}