DorianGray

Dorian Gray as a name may be the perfect parody for a little photo viewing app.

Like button with spinner animation
Like count
Save 'Like' button state locally when the button is toggled
UX Improvements
- "No Image" placeholder image before downloaded image arrives
- Updated image height constraints and image loading on scrolling to fine-tune UX
- Update GCD queues' priorities to fine-tune scrolling performance

Full screen mode to view images (Instagram app does not have full screen viewing feature; Understand that Instagram is trying to remain square-size photos); Single tap gesture to enter/exist between table view and full-screen mode
Simple custom animation implementation for toggling between table view and full-screen mode
Double tap gesture on full-screen would zoom out image to a smaller scale with the existing table view on background; Pinch gesture to rotate image to see basic animation
Share button to use iPhone standard menu that offers standard features such as saving images locally, mailing, etc. (Instagram app won't let you save the images locally yet.)
Long-presse gesture on table view's image cell would bring up the same iPhone standard menu
Use AFNetwork framework
GCD (Grand Central Dispatch) implementation with multiple threads with different priorities, around image download, archiving images locally and retrieving images
Retrieve and render only visible images on the deceleration of scrolling to mimic lazy-loading, or load just-in-time behavior
Various code improvements and fixes