Swift:键盘出现时UIView更改了大小

NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow(_:)), name: UIResponder.keyboardWillShowNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillHide(_:)), name: UIResponder.keyboardWillHideNotification, object: nil)

@objc func keyboardWillShow(_ notification: Notification) {
    if let keyboardSize = (notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue {
        // 根据键盘的高度调整UIView的大小
        let newViewFrame = CGRect(x: 0, y: 0, width: view.frame.width, height: view.frame.height - keyboardSize.height)
        view.frame = newViewFrame
    }
}

@objc func keyboardWillHide(_ notification: Notification) {
    // 恢复UIView的原始大小
    view.frame = CGRect(x: 0, y: 0, width: view.frame.width, height: view.frame.height)
}

deinit {
    NotificationCenter.default.removeObserver(self)
}