DTPhotoViewerController

Uses referenced views for seamless zoom animations between thumbnails and full-screen, replicating the fluid experience of apps like Facebook, as shown in the demo GIF.

Allows subclassing of DTPhotoCollectionViewCell to add custom UI elements per photo, enabling fine-grained customization through registerClassPhotoViewer or registerNibForPhotoViewer methods.

Includes built-in support for zooming, panning, and dismiss gestures, providing an intuitive, native-like photo viewing experience without extra code.

For displaying a single image, only requires passing a UIImageView and UIImage instance, making integration straightforward with minimal code, as demonstrated in the README example.