A group containing Photos asset collections, such as Moments, Years, or folders of user-created albums.
SDKs
- iOS 8+
- macOS 10.13+
- Mac Catalyst 13.0+
- tvOS 10+
Framework
- Photos
Declaration
@interface PHCollectionList : PHCollection
Overview
In the Photos framework, collection objects (including asset collections) do not directly reference their member objects, and there are no other objects that directly reference collection objects. To retrieve the members of a collection list, fetch them with a PHCollection class method such as fetch. To find objects at the root of the collection list hierarchy (such as album folders with no parent folders), use the fetch method.
Like assets and asset collections, collection lists are immutable. To create, rename, or delete collection lists, or to add, remove, or rearrange members in a collection list, create a PHCollection object within a photo library change block. For details on using change requests and change blocks to update the photo library, see PHPhoto.