本文介绍了UICollectionView selectItemAtIndexPath不调用didSelectItemAtIndexPath的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有一个收藏夹视图.我想以编程方式选择一个单元格.这是我使用的代码
I have a collection view. I would like to programmatically select a cell. This is the code I use
[_collectionView selectItemAtIndexPath:[NSIndexPath indexPathForItem:currentSelectedVideo inSection:0] animated:YES scrollPosition:UICollectionViewScrollPositionNone];
出于某些原因，这些功能:
For some reason the functions:
-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
-(void)collectionView:(UICollectionView *)collectionView didDeselectItemAtIndexPath:(NSIndexPath *)indexPath
未调用，因此我用于显示所选单元格的视觉效果未显示在屏幕上.
Are not called and therefore the visual effect I am using for showing the selected cell is not shown on the screen.
这是适当的行为吗?
推荐答案
是的，这是正确的行为.有关的文件[selectItemAtIndexPath:animated:scrollPosition:]说:
Yes, this is proper behaviour. Documentation for[selectItemAtIndexPath:animated:scrollPosition:] says:
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