问题描述
我正在尝试将 UICollectionViewCompositionalLayout
与 AScollectionNode
一起使用。然而 layoutSpecThatFits
的受限大小最终是:
ASSizeRange(394.0,300.0),max: (394.0,300.0)
而且我的布局不能缩小。
我的单元节点布局:
let stack = ASStackLayoutSpec.vertical()
stack.style.flexShrink = 1.0
stack.style.flexGrow = 1.0
stack.spacing = .fp_grid(2)
if let imageSpec = imageLayout(constrainedSize) {
stack.children?.append(imageSpec)
}
let titlenodes = [titleNode,subtitleNode].compactMap { $0 }
if !titlenodes.isEmpty {
let titleStack = ASStackLayoutSpec.vertical()
titleStack.spacing = .fp_grid(0.1)
titleStack.children = titlenodes
stack.children?.append(titleStack)
}
if let summaryNode = summaryNode {
stack.children?.append(summaryNode)
}
return stack
这是我的 UICollectionViewCompositionalLayout:
public static func createDetailedLayout() -> UICollectionViewCompositionalLayout {
let estimatedHeight = CGFloat(300)
let layoutSize = NSCollectionLayoutSize(
widthDimension: .fractionalWidth(1.0),heightDimension: .estimated(estimatedHeight))
let item = NSCollectionLayoutItem(layoutSize: layoutSize)
let group = NSCollectionLayoutGroup.horizontal(
layoutSize: layoutSize,subitem: item,count: 1
)
let section = NSCollectionLayoutSection(group: group)
section.contentInsets = NSDirectionalEdgeInsets(top: 10,leading: 10,bottom: 10,trailing: 10)
section.interGroupSpacing = 10
let layout = UICollectionViewCompositionalLayout(section: section)
return layout
}
解决方法
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