ios - 当 UITextView 出现键盘时 ScrollView ，但不是同一 View 上的 UITextField

Question

当我开始编辑 UITextView 时，我正在使用这段代码向上 ScrollView 。

override func viewDidLoad() {
        super.viewDidLoad()

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

}

func keyboardWillShow(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
        }
    }

}

func keyboardWillHide(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
        }
    }
}

但是，我在这个 View 的顶部还有一个 UITextField，当我开始编辑它时，该 View 也会滚动。我不希望这种情况发生。如何将我的代码更改为仅在 UITextView 键盘处于事件状态时滚动，而不是在 UITextField 键盘激活时滚动？

Answer 1

试试这段代码，用户textview delgate

//scrollBy - 传递当键盘出现时您希望 ScrollView 滚动的高度

 func textViewDidBeginEditing(_ textView: UITextView)
    {
         scrView.setContentOffset(CGPoint.init(x: 0, y: scrollBy), animated: true)

     }

    func textViewDidEndEditing(_ textView: UITextView)
    {
        scrView.setContentOffset(CGPoint.init(x: 0, y: 0), animated: true)

        self.view.endEditing(true);
    }