Subclass of NSImageView/UIImageView that allows you to rotate a 360° panorama made up of a sequence of images by clicking/swiping.
Category on NSMutableDictionary for populating it more easily with EXIF data (CGImageProperties) for use with ALAssetLibrary’s -(void) writeImageToSavedPhotosAlbum:metadata:completionBlock:.
Note: There are numerous warnings and pitfalls in header comments you should read before you use this.
Asynchronous image downloader with cache support with an UIImageView category.
Implementation of an image cache that stores downloaded images based on a URL key. The cache is not persistent (OS makes no guarantees) and is not backed-up when the device is sync’d.
A clone of the UIImagePickerController allowing for multiple asset selection using the Assets Library Framework.
A view based on the sidebar in Apple’s Keynote app for iPad.
Simplify asynchronous image loading from the web, particularly in a UITableView.
A Windows Phone 7- or iPhoto-style grid list view where you can show clickable images etc. with labels.
A collection of Code used by several Google projects. Of particular interest are the classes for accessing the AddressBook in a more Cocoa way than the C Library, but many of these classes give answers to common questions (UIImage resize, google search of course…).
Three20 is a collection of iPhone UI classes derived from the Facebook iPhone app, and developed by Facebook. It currently includes a photo viewer, message composer, Web image views, Internet-aware table view controllers, better text fields, HTTP disk cache, and URL-based Navigation.