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

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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