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NSCollectionViewFlowLayoutInvalidationContextMBS class

Super class: NSCollectionViewLayoutInvalidationContextMBS

Type Topic Plugin Version macOS Windows Linux iOS Targets
class Cocoa Collection View MBS MacControls Plugin 21.0 ✅ Yes ❌ No ❌ No ❌ No Desktop only
An object that identifies the portions of a flow layout object that need to be updated.

Layout objects use invalidation contexts to optimize the layout process and avoid unnecessary work. You use this class to specify whether the NSCollectionViewFlowLayout object should fetch new size information from its delegate. You can also prevent the flow layout object from updating its layout information altogether.

When you want to invalidate your flow layout object, call the NewInvalidationContext method of your layout object and instantiate the resulting class. (The implementation of that method in NSCollectionViewFlowLayout returns this class.) After instantiating this class, set the properties to appropriate values and pass the object to the invalidateLayoutWithContext method of the layout object.
Subclass of the NSCollectionViewLayoutInvalidationContextMBS class.

Super class NSCollectionViewLayoutInvalidationContextMBS

This class has no sub classes.


The items on this page are in the following plugins: MBS MacControls Plugin.


NSCoderMBS   -   NSCollectionViewFlowLayoutMBS


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