Detect last visible nscollectionview item prototyp

问题:

How is it possible to detect in NSCollectionView when the last item is visible on scrolling ?

I was looking for a similar solution as this but NSCollectionView doesnt have a similar layout methods.

Any hints ?

回答1:

It is possible to get noted when the scroll view has scrolled by registering for boundsDidChange notification of the document view as described here Callbacks When an NSScrollView is Scrolled? .

That way one can check which part of the content of the collection view is displayed.