Protocol Implementations

Overview

The diffable data source type conforms to several protocols, including NSCollectionViewDataSource and Hashable. This page lists the diffable data source type’s implementations of those protocol requirements.

Topics

Getting Item and Section Metrics

• collectionView(_:numberOfItemsInSection:)
• numberOfSections(in:)

Getting Views for Items

• collectionView(_:itemForRepresentedObjectAt:)
• collectionView(_:viewForSupplementaryElementOfKind:at:)

Debugging a Diffable Data Source

• description()