UIScrollView在另一个不滚动的视图中

Question

所以我见过其他SO问题，但我无法弄明白我的

我知道我的UIScrollView代码有效，因为我在常规的UIViewController中测试它，所以我不认为contentSize是问题，但是当我将相同的代码放在UICollectionReusableView中时它不再滚动

-Working in UIViewController
    override func viewDidLoad() {
      super.viewDidLoad()
      let scrollingView = colorButtonsView(buttonSize: CGSize(width:100.0,height:50.0), buttonCount: 10)

      let scrollView = UIScrollView(frame: UIScreen.main.bounds)
      scrollView.backgroundColor = UIColor.black
      scrollView.contentSize = scrollingView.frame.size
      scrollView.showsHorizontalScrollIndicator = true

      self.view.addSubview(scrollView)
      scrollView.addSubview(scrollingView)

   }

-Not working in UICollectionReusableView

 override init(frame: CGRect) { 
    super.init(frame: frame)

    //Add category scroll view 
    let scrollingView = colorButtonsView(buttonSize: CGSize(width:100.0,height:50.0), buttonCount: 10)

    let scrollView = UIScrollView(frame: UIScreen.main.bounds)
    scrollView.backgroundColor = UIColor.black
    scrollView.contentSize = scrollingView.frame.size

    scrollView.showsHorizontalScrollIndicator = true

    self.addSubview(scrollView) //Only changes self.view to self
    scrollView.addSubview(scrollingView)


 }

Answer 1

迟到总比没有...我遇到了同样的问题，所以也许这就是原因;

我想在UIScrollView内加UICollectionReusableView，但不小心我创建了自定义类;

class CustomCellHeader: UICollectionViewCell {


}

而不是;

class CustomCellHeader: UICollectionReusableView {


}

一旦我改变了这一点，我的标题单元格中的UIScrollView变为现实！