Question

我在viewDidLoad子类中实现了以下UIViewController方法：

var scrollView  = UIScrollView.newAutoLayoutView()
var contentView = UIView.newAutoLayoutView()

override func viewDidLoad() {
    super.viewDidLoad()

    view.addSubview(scrollView)
    scrollView.autoPinEdgesToSuperviewEdgesWithInsets(UIEdgeInsetsZero)

    scrollView.addSubview(contentView)
    contentView.autoPinEdgesToSuperviewEdgesWithInsets(UIEdgeInsetsZero)
    contentView.autoMatchDimension(.Height, toDimension: .Height, ofView: view)
    contentView.autoMatchDimension(.Width, toDimension: .Width, ofView: view)

    contentView.addSubview(customView)
    customView.autoPinEdgeToSuperviewEdge(.Top, withInset:0)
    customView.autoPinEdgeToSuperviewEdge(.Left, withInset:15)
}

但是当我运行应用程序时，内容不会滚动。我找到了很少的PureLayout文档和示例，并且没有关于滚动视图的明确说明。有人可以帮我吗？

Answer 1

在Scrollview中使用autolayout时，必须确保contentView中的每个视图都固定在所有4个边上。

你的customView只固定到TOP和LEFT，尝试固定到所有方面并使用autoSetDimension（.Height，toSize：1300）到一个大尺寸并观察它的工作：）

这是一个正在运行的示例代码

  let instance  = this.viewContainerRef.createComponent(this.componentFactory, 0).instance;
  instance.message = "some text!!";

Answer 2

这可能会帮助某人

func updateUI(){



    self.view.backgroundColor = .white
    self.view.addSubview(scrollView)
    scrollView.addSubview(contentView)
         contentView.addSubview(offer_title)
         contentView.addSubview(offer_image)
         contentView.addSubview(body)

    scrollView.autoPinEdgesToSuperviewEdges()
    contentView.autoPinEdgesToSuperviewEdges()
    contentView.autoMatch(.width, to: .width, of: view)



         offer_image.contentMode = .scaleToFill
         offer_image.autoPinEdge(toSuperviewEdge: .top, withInset: 0)
         offer_image.autoPinEdge(toSuperviewEdge: .trailing, withInset: 0)
         offer_image.autoPinEdge(toSuperviewEdge: .leading, withInset: 0)
         offer_image.autoSetDimension(.height, toSize: 300)

         offer_title.autoPinEdge(.top, to: .bottom, of: offer_image, withOffset: 8)
         offer_title.autoPinEdge(toSuperviewEdge: .trailing, withInset: 8)
         offer_title.autoPinEdge(toSuperviewEdge: .leading, withInset: 8)
         offer_title.autoSetDimension(.height, toSize: 60)
         body.numberOfLines = 0
         body.font = UIFont(name: "HelveticaNeueLT-Regular", size: 20)
         body.autoPinEdge(.top, to: .bottom, of: offer_title, withOffset: 8)
         body.autoPinEdge(toSuperviewEdge: .trailing, withInset: 8)
         body.autoPinEdge(toSuperviewEdge: .leading, withInset: 8)
         body.autoPinEdge(toSuperviewEdge: .bottom, withInset: 8)
     }

并在 viewdidLoad

中调用它

无法使用PureLayout设置滚动视图

2 个答案: