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iOS 6 UICollectionView Coverflow implementation
Objective-C C++ Objective-C++ Ruby
Branch: master

Merge pull request #9 from tbrannam/tb_warnings_fix

Updated project to remove 64-bit related issues (CGFloat <-> float)
latest commit 03d967cd40
@schwa authored


Coverflow Implementation using UICollectionView


This is an iPhone project implementing Coverflow using iOS 6 UICollectionViews and a custom UICollectionViewLayout


View it in action here:

Yes, Apple demoed this at WWDC but I think the interpolation technique I use is rather neat and allows you to easily adjust the layout and behavior of the layout.


CInterpolator objects are a little like CAKeyFrameAnimation objects except they're not necessarily time based. You can use them for (linear) key frame interpolation between any keys and values


  • The "Gloom" layer doesn't do a very good job with alpha backgrounds.
  • Aliasing is very obvious on straight edges when rotation.
  • Shadow needs to be longer to deal with perspective transform. See next item.
  • Need to specify manually the Y position of cells so that we can force cells to draw offscreen (for shadows). Or just rely on UIKit's ability to not clip to bounds.
  • Need to properly deal with aspect fill/fit images.
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