I'd like to know when a UICollectionViewCell is displayed on the actual screen. cellForRowAtIndexPath is insufficient, as the cell isn't actually seen at this point. didEndDisplayingCell is insufficient, as it gets called when the cell is removed from view.

UITableViewDelegate has a willDisplayCell method that I've found useful for similar stuff in the past, but it doesn't appear to exist in UICollectionViewDelegate.

How can I determine when the cell is brought on to the screen?

ios uikit uicollectionview
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