Instance Method

removeChildCollections(at:)

Removes the child collections at the specified indexes from the collection list.

Declaration

func removeChildCollections(at indexes: IndexSet)

Parameters

indexes

The indexes of the child collections to be removed from the collection list.

Discussion

To ensure that the index set you specify is valid even if the collection list has changed since you fetched it, create a change request with a snapshot of the collection list’s contents using the init(for:childCollections:) method before removing child collections. To remove objects based on their identities (without regard to their indexes in the collection), use the removeChildCollections(_:) method.

See Also

Modifying Collection Lists

init?(for: PHCollectionList)

Creates a request for modifying the specified collection list.

init?(for: PHCollectionList, childCollections: PHFetchResult<PHCollection>)

Creates a request for modifying the specified collection list, with a fetch result for tracking changes.

var title: String

The displayed name of the collection list.

func addChildCollections(NSFastEnumeration)

Add the specified collections as children of the collection list.

func insertChildCollections(NSFastEnumeration, at: IndexSet)

Inserts the specified collections into the collection list at the specified indexes.

func removeChildCollections(NSFastEnumeration)

Removes the specified child collections from the collection list.

func replaceChildCollections(at: IndexSet, withChildCollections: NSFastEnumeration)

Replaces the child collections at the specified indexes in the collection list with the specified collections.

func moveChildCollections(at: IndexSet, to: Int)

Moves the child collections at the specified indexes in the collection list to a new index.