相关疑难解决方法(0)

像这样的代码

collectionLayout.estimatedItemSize = CGSize(width: 50, height: 25)
collectionLayout.itemSize = UICollectionViewFlowLayoutAutomaticSize
collectionLayout.minimumInteritemSpacing = 10 

for _ in 0 ..< 1000 {
    let length = Int(arc4random() % 8)
    let string = randomKeyByBitLength(length)
    array.append(string!)
}
collectionView.reloadData()

细胞限制:

当我在iOS 12上运行它时,它是不同的.左模拟器是iOS 11,右边是iOS 12:

但是,当我滚动它时,细胞的帧将是正常的.

重现问题的示例项目:https://github.com/Coeur/StackOverflow51375566