Ios 使用Swift使用键盘向上移动文本视图

我是iOS开发新手。
我正在使用具有多个TextField和TextView的视图。我正在尝试向上移动视图，以避免键盘隐藏编辑TextField和TextView内容。以下代码适用于所有TextField，但在编辑TextView时不会向上移动视图。希望您理解我的问题。 提前谢谢

override func viewDidLoad() {
    super.viewDidLoad()
    NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow(notification:)), name: .UIKeyboardWillShow, object: nil)
    NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillHide(notification:)), name: .UIKeyboardWillHide, object: nil)
}

deinit {
    NotificationCenter.default.removeObserver(self)
}  

 var keybordenabled = false
@objc func keyboardWillShow(notification: NSNotification) {
      if(keybordenabled == false){
    adjustInsetForKeyboardShow(show: true, notification: notification)
          keybordenabled = true
    } 
}

@objc func keyboardWillHide(notification: NSNotification) {
     keybordenabled = false

    adjustInsetForKeyboardShow(show: false, notification: notification)
}

func adjustInsetForKeyboardShow(show: Bool, notification: NSNotification) {
    let userInfo = notification.userInfo ?? [:]
    let keyboardFrame = (userInfo[UIKeyboardFrameBeginUserInfoKey] as! NSValue).cgRectValue
    let adjustment = (keyboardFrame.height * (show ? 1 : -1)) + 20

    scrollView.contentInset.bottom += adjustment
    scrollView.scrollIndicatorInsets.bottom += adjustment
    self.view.layoutIfNeeded()
}



func textViewDidBeginEditing(_ textView: UITextView)
{
    if (textView.text == "Enter comment here...")
    {
        textView.text = ""
        textView.textColor = .black
    }
    textView.becomeFirstResponder() 
}

func textViewDidEndEditing(_ textView: UITextView)
{
    if (textView.text == "")
    {
        textView.text = "Enter comment here..."
        textView.textColor = .lightGray
    }
    textView.resignFirstResponder()
}

---

@Jhon您可以使用IQKeyboard第三方库处理文本字段和文本视图滚动键盘外观。使用此IQKeyboardSDK将管理所有文本字段和文本视图的自动滚动，也将节省大量的工作和时间

---

请参阅此链接：

使用IQKeyboard Library检查此UITextViewTextDidBeginEditingUITextViewTextDidEndEditing@ElTomato对不起，我没听清你说的话谢谢……我有一些复杂的视图（嵌入容器视图中的文本视图，…）..…IQKeyboard manager未按预期工作…您应该使用

UIKeyboardFrameEndUserInfoKey

而不是

UIKeyboardFrameBeginUserInfoKey

。这个命名很好地解释了它本身，但是为了进一步的参考，您可以在这里检查它：在KeyboardWillEnglish中，您还可以设置self.view.frame.origin.y=0它也可以工作。

This is  work Me!

override func viewWillAppear(_ animated: Bool) {
        NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillDisappear), name: Notification.Name.UIKeyboardWillHide, object: nil)
        NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillAppear), name: Notification.Name.UIKeyboardWillShow, object: nil)
    }


override func viewWillDisappear(_ animated: Bool) {
        NotificationCenter.default.removeObserver(self)
    }


 @objc func keyboardWillAppear(_ notification: NSNotification) {

        if let keyboardSize = (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.cgRectValue {
            if self.view.frame.origin.y == 0{
                self.view.frame.origin.y -= keyboardSize.height
            }
        }
    }

 @objc func keyboardWillDisappear(_ notification: NSNotification) {

        if let keyboardSize = (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.cgRectValue {
            if self.view.frame.origin.y != 0{
                self.view.frame.origin.y += keyboardSize.height
            }
        }
    }