sectionIdentifier(containingItem:)
Returns the identifier of the section containing the specified item in the snapshot.
Declaration
func sectionIdentifier(containingItem identifier: ItemIdentifierType) -> SectionIdentifierType?Parameters
- identifier:
The identifier of the item contained in the section of the snapshot.
Return Value
The identifier of the section containing the specified item, or nil if the specified item doesn’t exist in any section of the snapshot.