Add Pan Gesture to UICollectionView Cell - IOS/Swift

Question

I have an UICollectionView and I want to add pan gesture to its Cells/Items. When I add the gesture in usual way UICollectionView is not getting scrolled.

This is how I add the gesture

func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {

    let cell:UICollectionViewCell = collectionView.dequeueReusableCellWithReuseIdentifier("Cell", forIndexPath: indexPath)

    let panGesture = UIPanGestureRecognizer(target: self, action: #selector(CaptureViewController.pagesCollectionViewItemPanEvent(_:)))
    cell.addGestureRecognizer(panGesture)

    return cell;
}

Is there something wrong here? Can someone please tell me a way to get my work done. Any help would be highly appreciated.

Answer 1

You should add the gesture to the collection view and not to the cell itself. Something like...

let panGesture = UIPanGestureRecognizer(target: self, action: "handlePanGesture:")
collectionView.addGestureRecognizer(panGesture)

func handlePanGesture(gesture: UIPanGestureRecognizer) {

    let locationInView = gesture.locationInView(collectionView)
    ...
}