Detect userEvent/pan/scroll on orthogonal sections in UICollectionViewCompositionalLayout

Question

I am using autoScroll on an orthogonal section of the collectionView using compositional layout. I need to invalidate the autoscroll timer as soon as the user manually scrolls the section. I could use scrollViewDidBeginDragging / scrollViewWillBeginDecelerating, but the scrollView delegates never get called on orthogonal sections. If anyone has any workaround to detect user scroll event in this case, it will be helpful. Thank you.

Answer 1

After trying out several solutions, I found the best and the simplest solution.
I added a UIPanGestureRecogniser to the UICollectionViewCell to listen to user pan events. In the selector, I just invalidate the timer. That's it! Also we need to return true by overriding gestureRecognizer(_:shouldRecognizeSimultaneouslyWith:) so that the vertical scroll and horizontal scrolls works properly.
This is what I added to the UICollectionViewCell class:

class CustomCell: UICollectionViewCell {
    override init(frame: CGRect) {
        super.init(frame: .zero)
        pan = UIPanGestureRecognizer(target: self, action: #selector(handlePan(_:)))
        pan.delegate = self
        self.addGestureRecognizer(pan)
    }
    
    @objc private func handlePan(_ pan: UIPanGestureRecognizer) {
        delegate?.invalidateTimer()
    }
}

extension CustomCell: UIGestureRecognizerDelegate {
    func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
        return true
    }
}

With this, every time the user tries to scroll, I invalidate the autoScroll timer