This is a conversion from Objective-C to Swift of UICollectonView sample program in Techtopia.
Original tutorial is :
http://www.techotopia.com/index.php/An_Overview_of_iOS_6_Collection_View_and_Flow_Layout
written and tested in Xcode6 beta7.
aoifukuoka/swift-collectionview
Conversion from Objective-C to Swift of UICollectionView sample in Techtopia
Swift