编码自定义uicollectionview布局
问题描述:
Where /我将如何编码此单元布局行为。编码自定义uicollectionview布局
我需要每个单元格重叠以前。
小区2的centerX是小区1个右边缘等等...
我会重写我的自定义UICollectionViewLayout用什么方法?
答
创建自定义的CollectionView布局,覆盖layoutAttributesForItem
配置细胞布局行为......
var preferredSize: CGSize? = CGSize(width: 100, height: 100)
override func layoutAttributesForItem(at indexPath: IndexPath) -> UICollectionViewLayoutAttributes? {
let attributes = UICollectionViewLayoutAttributes(forCellWith: indexPath)
attributes.size = preferredSize!
//Modifying the centerX property adjust the overlapping effect
let centerX = (preferredSize?.width)!/2.0 + CGFloat(indexPath.item) * ((preferredSize?.width)! * 0.5)
let centerY = collectionView!.bounds.height/2.0
attributes.center = CGPoint(x: centerX, y: centerY)
attributes.zIndex = -(indexPath.item)
return attributes
}
我猜你正在寻找这样的: https://stackoverflow.com/questions/36393692/uicollectionview -with重叠细胞和 - 定制插入和缺失-阿尼马特 –