有关UICollectionView的几篇文章:
一、UICollectionView简介及简单示例:
http://puttin.github.io/blog/2013/04/08/a-simple-uicollectionview-tutorial/
二、WWDC 2012 Session笔记—205 Introducing Collection Views:
http://www.onevcat.com/2012/06/introducing-collection-views/
三、WWDC 2012 Session笔记—219 Advanced Collection Views and Building Custom Layouts:
http://www.onevcat.com/2012/08/advanced-collection-view/