当键盘上移时如何固定UIView的位置？

// 监听键盘弹出和收起的通知
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow(_:)), name: UIResponder.keyboardWillShowNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillHide(_:)), name: UIResponder.keyboardWillHideNotification, object: nil)

// 键盘弹出时的处理方法
@objc func keyboardWillShow(_ notification: Notification) {
    if let keyboardFrame = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? CGRect {
        // 获取键盘的高度
        let keyboardHeight = keyboardFrame.height
        
        // 调整UIView的位置
        UIView.animate(withDuration: 0.3) {
            self.yourView.frame.origin.y -= keyboardHeight
        }
    }
}

// 键盘收起时的处理方法
@objc func keyboardWillHide(_ notification: Notification) {
    // 恢复UIView的位置
    UIView.animate(withDuration: 0.3) {
        self.yourView.frame.origin.y = self.originalY
    }
}