             present(alert, animated: true, completion: nil)
         }
     }
-
+    
     // =========================================================================
     // MARK: - UICollectionViewataSource
     

            options: nil) { image, _ in
                cell.imageView.image = image
        }

        return cell
    }
    

    //   reference: http://koze.hatenablog.jp/entry/2015/06/24/230000
    fileprivate func fetchScreenshots() {
        let result = PHAsset.fetchAssets(with: .image, options: nil)
        result.enumerateObjects({ [unowned self] (asset, index, stop) -> Void in
            // Append only screenshots
            if asset.mediaSubtypes.contains(.photoScreenshot) {
                self.images.append(asset)
            }
        })
    }
    
    // Retrieve only Self Portraits
