What UI Framework is Instagram using?

I am in开发者_如何学Goterested to find out what UI Framework Instagram is using. Was wondering if anyone can enlighten me on that.

Any advise on this will be greatly appreciated!

Zhen

The same UI framework as most iOS apps, Cocoa Touch. They've just customized many of the controls. Here's some information on how to do similar customization:

• The UITabBar with the center bump

• The custom UITabBar notifications

• The custom UINavigationBar

• The scrolling picture list is similar to SSToolkit's SSCollectionView