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The previous version addSubview now addSubview ,tableview emptyview insterSubview back forever，So that other views will be displayed on it.How to solve this problem？
DZNEmptyDataSetView *vi…
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issueのラベルを表示させたい
`UICollectionView`を使う？
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`func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath)` not called
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UICollectionview的RefuseView中的子View用了桥接，结果崩溃在equeueReusableSupplementaryView这个方法，后来在copy约束这里加了子线程就好了，应该是约束在遍历和添加新约束时再加上collectionview刷新造成一些线程问题，本人是菜鸟，还请大神有时间看一下
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if (placeholderView.constraints.cou…
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@StefanLage
Hi！
If content page very more, 20 or 30 page.
support reuse content page like UITableView DataSource or UICollectionView DataSource is very cool thing.:+1:
Jack
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UICollectionViewCell高度自适应，
用的是自定义cell 中的 preferredLayoutAttributesFitting 方法来返回每个cel…
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### Phenomenon
Crash by Index out of range because cachedCellWidths is not synched to viewControllers
` or `deleteItems(at:)`, the empty view will not show or hide currectly.
It is because only `reloadData()` method swizzled.