Question

我的屏幕上有一个textview和一个文本字段，我想在编辑textview时移动屏幕。这是我的代码

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

    NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow(_:)), name: .UIKeyboardWillShow, object: nil)

 //   NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillHide(_:)), name: .UIKeyboardWillHide, object: nil)

    print("addd observer")

}
override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)
    NotificationCenter.default.removeObserver(self, name: .UIKeyboardWillShow, object: nil)
 //   NotificationCenter.default.removeObserver(self, name: .UIKeyboardWillHide, object: nil)
}

@objc func keyboardWillShow(_ sender: Notification) {
    let keyboardSize = (sender.userInfo?[UIKeyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue
    print("keyboardwillshow")
    ksize = keyboardSize?.height

}


@objc func textViewDidBeginEditing(_ textView: UITextView) {
        print("textviewedit")
        boxview.frame.origin.y -= ksize
        print("textview")



}
@objc func textViewDidEndEditing(_ textView: UITextView) {

    print("textvieweditend")
    boxview.frame.origin.y = 0

}

当我只编辑textview时它起作用。但是，如果我将焦点放在文本字段上之后立即编辑了textview（没有退出键盘），它将无法正常工作。我已经检查了textviewDidBeginEditing()的调用，但是屏幕没有移动。如何解决此问题？欢迎所有建议！

Answer 1

我将self.view.Layoutifneeded()添加到keyboardwillchange（）并成功了！谢谢大家。

出现键盘时快速移动屏幕

1 个答案: