我有一个 UICollectionView，而单元被重用，然后崩溃。下面是崩溃时的堆栈。
0 libobjc.A.dylib objc_msgSend + 32
1 UIKitCore - [UIView（动画）_removeAllAnimations：] + 100
2 UIKitCore-[UIView（动画）_removeAllAnimations：] + 244
3 UIKitCore - [UIView（动画）_removeAllAnimations：] + 244
4 UIKitCore - [UIView（动画）_removeAllAnimations：] + 244
5 UIKitCore-[UIView（动画）_removeAllAnimations：] + 244
6 UIKitCore-[UIView（动画）_removeAllAnimations：] + 244
7 UIKitCore - [UIView（动画）_removeAllAnimations：] + 244
8 UIKitCore-[UICollectionViewCell prepareForReuse] + 228
9 UIKitCore-[UICollectionView _dequeueReusableViewOfKind:withIdentifier:forIndexPath:viewCategory:] + 400
10 UIKitCore-[UICollectionView dequeueReusableCellWithReuseIdentifier:forIndexPath:] + 104
11 myapp -[myCollectionView 集合视图：cellForItemAtIndexPath：]
你能帮助我吗？我真的不明白为什么会在这里崩溃。
