当textField成为firstResponder时，未为viewController调用Deinit。如果未将textField设为第一响应者，它将调用Deinit

Question

我正面临一个奇怪的行为，文本字段成为第一响应者。我在ViewWillAppear中添加了键盘观察器，并在viewWillDisappear中将其删除。每当我不使textField成为第一响应者时，都会调用ViewController的Deinit，但是每当TextField成为第一响应者时，在关闭键盘时都不会调用Deinit。 我知道这很不寻常，但是有人面对过吗？这就是代码的样子-

  override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)

    NotificationCenter.default.addObserver(self, selector: #selector(ZLOTPBaseVC.keyboardWillShow(notification:)), name:NSNotification.Name.UIKeyboardWillShow, object: nil)
    NotificationCenter.default.addObserver(self, selector: #selector(ZLOTPBaseVC.keyboardWillHide(notification:)), name:NSNotification.Name.UIKeyboardWillHide, object: nil)
}


   override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)

    NotificationCenter.default.removeObserver(NSNotification.Name.UIKeyboardWillShow)
    NotificationCenter.default.removeObserver(NSNotification.Name.UIKeyboardWillHide)

}