[英]swift screen move when keyboard appears
我的屏幕上有一個textview和一個文本字段,我想在編輯textview時移動屏幕。 這是我的代碼
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
}
當我只編輯textview時,它起作用。 但是,如果我將焦點放在文本字段上之后立即編輯了textview(沒有退出鍵盤),它將無法正常工作。 我已經檢查了是否調用了textviewDidBeginEditing()
,但屏幕沒有移動。如何解決此問題? 歡迎所有建議!
我將self.view.Layoutifneeded()
添加到keyboardwillchange(),它的工作原理! 謝謝大家。
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