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Hi everybody. I also faced this problem. Here's my crutch: private var isDragging = false private var previousPointX: CGFloat? private var dragTimer: Timer? private func horizontalScrollHandler(forSection section: NSCollectionLayoutSection, completion: (() -> Void)?) { section.visibleItemsInvalidationHandler = { [weak self] (_, point, _) in guard let self = self else { return } if let previousPointX = self.previousPointX, previousPointX != point.x { self.isDragging = true self.restartDragTimer(completion: completion) } self.previousPointX = point.x } } private func restartDragTimer(completion: (() -> Void)?) { self.dragTimer?.invalidate() self.dragTimer = Timer.scheduledTimer(withTimeInterval: 0.1, repeats: false) { [weak self] _ in self?.isDragging = false completion?() } } and in the completion block, I make the changes I need. It is a pity that for so many years Apple has not made attempts to improve (or I didn't find it). :D If there are better solutions, please write them down.