Setting up keyboard avoidance to a textview using keyboardLayoutGuide

I'm setting up keyboard avoidance to a textview.

Objectives: Use keyboardLayoutGuide.followsUndockedKeyboard Allow for floating keyboard on iPad Move the textView up to clear the keyboard when it's tapped Move the textView back when the keyboard is hidden or when the textView is not firstResponder

View layout for testing: Three controls. A textField A TextView A UIView

The constraint on the bottom of the textView is 15 pts from the top of the UIView. This constraint is set to a Priority of 750

The code I have works fine except when the iPad is rotated. keyboardWillHideNotification fires when the rotation occurs even though the keyboard stays undocked.

This causes the textView to drop to its home position and then pop back up again. It's very goofy looking. The textView should hug the top of the keyboard.

I tried using textViewDidEndEditing instead of keyboardWillHide but that isn't much better.

Anybody have any ideas on making the textView hug the top of the keyboard when the iPad is rotated?

class ViewController: UIViewController, UITextViewDelegate
{
    @IBOutlet weak var myTextView: UITextView!
    
    private var buttomConstraint: NSLayoutConstraint!

    override func viewDidLoad()
    {
        super.viewDidLoad()
        
        myTextView.translatesAutoresizingMaskIntoConstraints = false
        buttomConstraint = myTextView.bottomAnchor.constraint(equalTo: view.keyboardLayoutGuide.topAnchor)
        view.keyboardLayoutGuide.followsUndockedKeyboard = true

        NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow), name: UIResponder.keyboardWillShowNotification, object: nil)
        NotificationCenter.default.addObserver(self, selector: #selector(self.keyboardWillHide), name: UIResponder.keyboardWillHideNotification, object: nil)
        
        
        hideKeyboard()
    }
    
    override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator)
    {
        
    }
    
    @objc func keyboardWillHide(notification: NSNotification)
    {
        print("Keyboard will hide")
        
        if myTextView.isFirstResponder
        {
            UIView.animate(withDuration: 0.3) { [weak self] in
                self?.buttomConstraint.isActive = false
                self?.view.layoutIfNeeded()
            }
        } else {
            print("Somethibg")
        }
    }
    
    @objc func keyboardWillShow(notification: NSNotification)
    {
        if myTextView.isFirstResponder
        {
            UIView.animate(withDuration: 0.3) { [weak self] in
                self?.buttomConstraint.isActive = true
                self?.view.layoutIfNeeded()
            }
        } else {
            buttomConstraint.isActive = false
        }
    }
    
    func textViewDidBeginEditing(_ textView: UITextView)
    {
//        UIView.animate(withDuration: 0.3) { [weak self] in
//            self?.buttomConstraint.isActive = true
//            self?.view.layoutIfNeeded()
//        }
    }
    
    func textViewDidEndEditing(_ textView: UITextView)
    {
//        UIView.animate(withDuration: 0.3) { [weak self] in
//            self?.buttomConstraint.isActive = false
//            self?.view.layoutIfNeeded()
//        }
    }
}

extension ViewController
{
    // MARK: This dismisses the keyBoard when the view it tapped
    func hideKeyboard()
    {
        let tap: UITapGestureRecognizer = UITapGestureRecognizer(
            target: self,
            action: #selector(ViewController.dismissKeyboard))

        tap.cancelsTouchesInView = false
        view.addGestureRecognizer(tap)
    }

    @objc func dismissKeyboard()
    {
        view.endEditing(true)
    }
}