AsExample1.swift

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
  if segue.identifier == "ViewImage" {
    let imageViewController = segue.destinationViewController as ImgurImageViewController
    let cell = sender as ImageCollectionViewCell
    if let indexPath = imagesCollectionView.indexPathForCell(cell) {
      imageViewController.imgurImage = images[indexPath.row]
    }
  }
}