ios - UICollectionView 滚动到它的 View 之外

Question

我想在外部 View 滚动时滚动我的收藏 View ...我找到了这个答案:How to make a collectionview respond to pan gestures outside of it's own view但它对我不起作用。

我的 viewController 中的代码

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    super.touchesBegan(touches, with: event)
    pager.touchesBegan(touches, with: event)
}

override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
    super.touchesMoved(touches, with: event)
    pager.touchesMoved(touches, with: event)
}

override func touchesCancelled(_ touches: Set<UITouch>, with event: UIEvent?) {
    super.touchesCancelled(touches, with: event)
    pager.touchesCancelled(touches, with: event)
}

override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
    super.touchesEnded(touches, with: event)
    pager.touchesEnded(touches, with: event)
}

override func viewDidLoad() {
    super.viewDidLoad()
    pager = Carousel(withFrame: self.view.bounds, andInsets: 5)
    pager.dataSource = self
    pager.translatesAutoresizingMaskIntoConstraints = false
    pager.register(MyCollectionView.self, forCellWithReuseIdentifier: "Cell")
    self.swipeView.addSubview(pager)
    pager.widthAnchor.constraint(equalTo: view.widthAnchor, multiplier: 1).isActive = true
    pager.heightAnchor.constraint(equalToConstant: 300).isActive = true
    pager.leadingAnchor.constraint(equalTo: view.leadingAnchor).isActive = true
    pager.topAnchor.constraint(equalTo: view.topAnchor, constant: 50).isActive = true
}

请帮忙，谢谢

Answer 1

在您的情况下，您需要告诉您的 View Carousel 触摸在 View 内

您需要覆盖hitTest 函数并返回自身carousel

class TouchCarousel: Carousel {
   override func point(inside point: CGPoint, with event: UIEvent?) -> Bool {
      return true
   }
}

然后使用你创建的类<​​/p>

pager = TouchCarousel(withFrame: self.view.bounds, andInsets: 5)