override func beginInteractiveMovementForItem(at indexPath: IndexPath) -> Bool {
    guard let dragCell = cellForItem(at: indexPath) as? ActivityPhotoGalleryCell else { return false }
    draggingCell = dragCell
    originalColor = dragCell.backgroundColor
    originalSize = dragCell.imageView.bounds.size
    newSize.width *= 0.7
    newSize.height *= 0.7
    dragCell.imageView.bounds.size = newSize
    dragCell.backgroundColor = UIColor.clear
    dragCell.setNeedsDisplay()
    dragCell.isDragging = true

    return super.beginInteractiveMovementForItem(at: indexPath)
}

var sizeForItem = CGSize(width: widthPerItem, height: widthPerItem)

    let cell = collectionView.cellForItem(at: indexPath) as? CustomCellObject

    if (cell?.isDragging ?? false) {
        sizeForItem.height *= 0.7
        sizeForItem.width *= 0.7
    }

    return sizeForItem