wendyliga

class ViewController: ASViewController<ASDisplayNode> {

  init() {
    super.init(node: ASDisplayNode())

    self.node.backgroundColor = .white
  }

  required init?(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")

wendyliga

node.layoutSpecBlock = {_,_ in
     return ASWrapperLayoutSpec(layoutElement: self.titleNode)
}

wendyliga

let mainStack = ASStackLayoutSpec(direction: .horizontal,
                                          spacing: 6.0,
                                          justifyContent: .start,
                                          alignItems: .center,
                                          children: [titleNode, subtitleNode])
        
return mainStack

wendyliga

let mainStack = ASStackLayoutSpec(direction: .horizontal,
                                     spacing: 6, justifyContent: .start,
                                     alignItems: .center,
                                     children: [self.titleNode, self.subtitleNode])
            
let padding = ASInsetLayoutSpec(insets: UIEdgeInsets(top: 0, left: 15, bottom: 0, right: 15), child: mainStack)
            
return padding

wendyliga

let overlayNode = ASDisplayNode()  
overlayNode.backgroundColor = UIColor.black.withAlphaComponent(0.3)

let overlay = ASOverlayLayoutSpec(child: mainStack, overlay:  self.overlayNode)

return overlay

wendyliga

let backgroundNode = ASDisplayNodeWithBackgroundColor(UIColor.red)
let foregroundNode = ASDisplayNodeWithBackgroundColor(UIColor.blue)
            
return ASBackgroundLayoutSpec(child: foregroundNode, background: backgroundNode)

wendyliga

let center = ASCenterLayoutSpec(centeringOptions: .XY,
                                            sizingOptions: .minimumXY,
                                            child: mainStack)
            
return center

wendyliga

let subnode = ASDisplayNodeWithBackgroundColor(UIColor.green, CGSize(width: 100, height: 100.0))
let ratioSpec = ASRatioLayoutSpec(ratio: 0.5, child: subnode)

return ratioSpec

wendyliga

let relativeSpec = ASRelativeLayoutSpec(horizontalPosition: .start,
                                                    verticalPosition: .start,
                                                    sizingOption: [],
                                                    child: foregroundNode)

wendyliga

node.style.layoutPosition = CGPoint(x: 0.0, y: maxConstrainedSize.height / 3.0)
node.style.preferredSize = CGSize(width: maxConstrainedSize.width / 2.0, height: maxConstrainedSize.height / 3.0)

return ASAbsoluteLayoutSpec(children: [node])