ios - Why when my custom cells in CollectionView are clicked they do not get highlighted?

Question

When I click they,the function of click(shch as show an alert or get into a new view) works fine but the appearance of the cell I clicked don't change.What I can do to make the cell I click get highlighted ?THX~

Answer 1

在 MyCollectionViewCell 的定义中添加公共方法 performSelectionAnimations。然后从 collectionView:didSelectItemAtIndexPath 中调用它：

-(void)performSelectionAnimations {

...


...
}

- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
MyCollectionViewCell *cell = (MyCollectionViewCell *)[collectionView cellForItemAtIndexPath:indexPath];
[cell performSelectionAnimations];
}

请注意，我已经取消了对 [cell setSelected:YES] 的调用，因为 UICollectionView 应该已经处理好了。

Answer 2

您必须以编程方式进行。看着 ：

https://developer.apple.com/library/ios/documentation/WindowsViews/Conceptual/CollectionViewPGforIOS/CollectionViewPGforIOS.pdf#page18

当您点击单元格时，突出显示状态变为“是”，但您必须实现 de 行为（即单击时更改背景单元格）。