文章作者：SkySeraph
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Recently in my new project I need to select all the cell data in my UITabViewCell and UICollectionViewCell, and need to do some operations with all the cells(like delete etc.), What I do as follows:
大专栏 Select all the cell in UITabView or UICollectionView problemong>But, The problem is , I can only select the visible cell when I scoll down or up, or do operations
Solutions in NetWork
UICollectionView cellForItemAtIndexPath is nil
cellForItemAtIndexPath returns nil after force scrolling to make it visible
Select all the cells in UITableView
Easier way to select all rows in UITableView
tableView.cellForRowAtIndexPath returns nil with too many cells (swift)
tableView.cellForRowAtIndexPath(indexPath) return nil
The real Solution
The real problem happened at the cellForRowAtIndexPath / cellForItemAtIndexPath, Which defined in Apple as follows:
When the cell is not visible, the cellForRowAtIndexPath will return nil,
So, it’s not the right way to do the cell select operation out the
UITableViewDataSource in cellForRowAtIndexPath (UITabView), you should do it separate. The right way as follows:
Ref
By SkySeraph-2016
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本文永久链接：http://skyseraph.com/2016/06/30/iOS/Select all the cell in UITabView or UICollectionView problem/