FBNativeAdCollectionViewCellProvider
@interfaceFBNativeAdCollectionViewCellProvider:FBNativeAdCollectionViewAdProvider
Class which assists in putting FBNativeAdViews into UICollectionViews. This class manages the creation of UICollectionViewCells which host native ad views. Functionality is provided to create UICollectionCellViews as needed for a given indexPath as well as computing the height of the cells.