xcode UICollectionViewCell 将被显示/被显示？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/12681443/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
UICollectionViewCell will be displayed/ was displayed?
提问by W Dyson
pretty simple question.
很简单的问题。
Is there a notification or delegate-type method to tell when a UICollectionViewCell object is displayed?
是否有通知或委托类型的方法来判断 UICollectionViewCell 对象何时显示？
回答by Anton Gaenko
For iOS 8 and higher you can use willDisplayCellof UICollectionViewDelegate
对于 iOS 8 及更高版本，您可以使用UICollectionViewDelegate的willDisplayCell
- (void)collectionView:(UICollectionView *)collectionView willDisplayCell:(UICollectionViewCell *)cell forItemAtIndexPath:(NSIndexPath *)indexPath
- (void)collectionView:(UICollectionView *)collectionView willDisplayCell:(UICollectionViewCell *)cell forItemAtIndexPath:(NSIndexPath *)indexPath
回答by Dave DeLong
Will:
将要：
-[<UICollectionViewDataSource> collectionView:cellForItemAtIndexPath:]
-[<UICollectionViewDataSource> collectionView:cellForItemAtIndexPath:]
Did:
做过：
-[<UICollectionViewDelegate> collectionView:didEndDisplayingCell:forItemAtIndexPath:]
-[<UICollectionViewDelegate> collectionView:didEndDisplayingCell:forItemAtIndexPath:]
