UICollectionViewLayoutInvalidationContext.InvalidateSupplementaryElements Method
Definition
Important
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Adds supplementary views in the specified index paths to an invalid item list.
[Foundation.Export("invalidateSupplementaryElementsOfKind:atIndexPaths:")]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 8, 0, ObjCRuntime.PlatformArchitecture.All, null)]
public virtual void InvalidateSupplementaryElements (Foundation.NSString elementKind, Foundation.NSIndexPath[] indexPaths);abstract member InvalidateSupplementaryElements : Foundation.NSString * Foundation.NSIndexPath[] -> unit
override this.InvalidateSupplementaryElements : Foundation.NSString * Foundation.NSIndexPath[] -> unitParameters
- elementKind
- NSString
String indicating the type of the supplementary views.
- indexPaths
- NSIndexPath[]
An array of index path objects.
- Attributes
Remarks
Call this in order to identify specific supplementary views in your layout which require updates.