Instance Property

invalidateEverything

A Boolean that indicates that all layout data should be marked as invalid.

Declaration

@property(nonatomic, readonly) BOOL invalidateEverything;

Discussion

You do not set this property yourself. The collection view sets it in response to specific types of layout invalidation scenarios. For example, the collection view sets it to YES when you change the current layout object, change the data source of the collection view, or call the reloadData method and subsequently request a layout invalidation context.

If this property is set to YES, the layout object should recompute all of its layout-related data.

See Also

Invalidating the Collection View Data

invalidateDataSourceCounts

A Boolean that indicates whether the layout should ask for new section and item counts.