在Swift中以编程方式为CollectionView设置insets

Dmi*_*gov 10 uicollectionview swift

ViewControllerCollectionView它.我想CollectionView按按钮更改插图.我应该实现什么代码?

谢谢!

Oli*_*son 22

设置部分插入并使布局无效.

let collectionViewLayout = collectionView.collectionViewLayout as? UICollectionViewFlowLayout

collectionViewLayout?.sectionInset = ... // some UIEdgeInset

collectionViewLayout?.invalidateLayout()
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