Saturday, November 24, 2012

Introduction to Collection Views in iOS

Collection Views, available in the UICollectionView class, are a new concept in iOS 6 that introduce presenting multiple items on the screen using layouts. The patterns for providing data to a UICollectionView to create items and interact with those items follow the same delegation and data source patterns commonly used in iOS development.

However, Collection Views work with a layout subsystem that is independent of the UICollectionView itself. Therefore, simply providing a different layout can easily change the presentation of a Collection View.

iOS provides a layout class called UICollectioViewFlowLayout that allows line-based layouts such as a grid to be created with no additional work. Also, custom layouts can also be created that allow any presentation you can imagine.


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