在调试崩溃应用程序

Question

我正在尝试调试我的应用程序，但是当我通过Xcode运行它时，我得到一个崩溃说-[UICollectionView _dequeueReusableViewOfKind:withIdentifier:forIndexPath:viewCategory:]这发生在cellForItemAtIndexPath：对于集合视图，但它只发生在我调试，如果我安装应用程序并在没有Xcode的情况下运行它可以正常工作。

这是我的代码：

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
    FFSIncidentCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:reuseIdentifier forIndexPath:indexPath]; 
    // Configure the cell 
    ...
}

Answer 1

So I figured this out, and hopefully this will help someone else. In my case, I have a UICollectionViewCell in a .Xib file. That cell has a UIScrollView and that UIScrollView has a UIView in it. The UIView is taller than the screen, so in IB I pulled it out of the scroll view so I could see it all, but I never moved it back to being a subview of the scroll view. Long story short, if you build a custom UITableViewCell or UICollectionViewCell, everything has to be a subview of the Cell, otherwise, CRASH!