Instance Property

invalidatedItemIndexPaths

The set of items whose layout attributes are invalid.

Declaration

var invalidatedItemIndexPaths: Set<IndexPath>? { get }

Discussion

The set contains zero or more NSIndexPath objects, each of which identifies an invalid item.

See Also

Invalidating Specific Items

func invalidateItems(at: Set<IndexPath>)

Marks the specified items as invalid so that their layout information can be updated.

func invalidateSupplementaryElements(ofKind: NSCollectionView.SupplementaryElementKind, at: Set<IndexPath>)

Marks the specified supplementary views as invalid so that their layout information can be updated.

func invalidateDecorationElements(ofKind: NSCollectionView.DecorationElementKind, at: Set<IndexPath>)

Marks the specified decoration views as invalid so that their layout information can be updated.

var invalidatedSupplementaryIndexPaths: [NSCollectionView.SupplementaryElementKind : Set<IndexPath>]?

A dictionary containing the supplementary views whose layout attributes are invalid.

var invalidatedDecorationIndexPaths: [NSCollectionView.DecorationElementKind : Set<IndexPath>]?

A dictionary containing the decoration views whose layout attributes are invalid.