AsyncDisplayKey - stacklayout犯规在屏幕上显示

问题描述：

我尝试创建内部cellnode stacklayout，但没有在屏幕上显示AsyncDisplayKey - stacklayout犯规在屏幕上显示

class Node: ASCellNode { 

    let blackNode = ASDisplayNode() 
    let blueNode = ASDisplayNode() 

    override init() { 
     super.init() 
     self.addSubnode(blueNode) 
     self.addSubnode(blackNode) 
    } 

    override func layoutSpecThatFits(_ constrainedSize: ASSizeRange) -> ASLayoutSpec { 
     blackNode.backgroundColor = .black 
     blueNode.backgroundColor = .blue 


     let contentStackSpec = ASStackLayoutSpec(direction: .horizontal, 
               spacing: 40, 
               justifyContent: .start, 
               alignItems: .center, 
               children: [blackNode, blueNode]) 

     contentStackSpec.style.minWidth = ASDimensionMakeWithPoints(60.0); 
     contentStackSpec.style.maxHeight = ASDimensionMakeWithPoints(40.0); 

     return ASRelativeLayoutSpec(horizontalPosition: .center, verticalPosition: .center, sizingOption: .init(rawValue: 0), child: contentStackSpec) 
    } 
}

我在做什么错？

也许一些错误ASRelativeLayoutSpec，试图返回'contentStackSpec'测试。 – Bimawa

而我没有看到任何规则来调整blueNode和blackNode的大小。 – Bimawa

答

我认为您应该使用ASInsetLayoutSpec来显示ASStackLayoutSpec而不是ASRelativeLayoutSpec。

下面是一个使用ASInsetLayoutSpec显示ASStackLayoutSpec你定的代码执行：

override func layoutSpecThatFits(_ constrainedSize: ASSizeRange) -> ASLayoutSpec { 
     blackNode.backgroundColor = .black 
     blueNode.backgroundColor = .blue 


     let contentStackSpec = ASStackLayoutSpec(direction: .horizontal, 
               spacing: 40, 
               justifyContent: .start, 
               alignItems: .center, 
               children: [blackNode, blueNode]) 

     contentStackSpec.style.minWidth = ASDimensionMakeWithPoints(60.0); 
     contentStackSpec.style.maxHeight = ASDimensionMakeWithPoints(40.0); 

     let cardInsetSpec : ASInsetLayoutSpec = ASInsetLayoutSpec(insets: UIEdgeInsetsMake(5, 5, 5, 5), child: contentStackSpec) 

     return cardInsetSpec 

    }

AsyncDisplayKey - stacklayout犯规在屏幕上显示

相关推荐