Question

好的，我正在尝试向SKSpriteNode添加UIScrollView，我该怎么做？

Answer 1

到目前为止你尝试了什么？作为一般的堆栈溢出规则，如果您需要帮助，应始终发布代码。

我建议总是从我的gitHub项目中获取此代码的最新版本，因为我做了更改，因为这个答案，链接在底部。

第1步：创建一个新的swift文件并粘贴此代码

import SpriteKit

/// Scroll direction
enum ScrollDirection {
    case vertical // cases start with small letters as I am following Swift 3 guildlines.
    case horizontal
}

class CustomScrollView: UIScrollView {

// MARK: - Static Properties

/// Touches allowed
static var disabledTouches = false

/// Scroll view
private static var scrollView: UIScrollView!

// MARK: - Properties

/// Current scene
private let currentScene: SKScene

/// Moveable node
private let moveableNode: SKNode

/// Scroll direction
private let scrollDirection: ScrollDirection

/// Touched nodes
private var nodesTouched = [AnyObject]()

// MARK: - Init
init(frame: CGRect, scene: SKScene, moveableNode: SKNode) {
    self.currentScene = scene
    self.moveableNode = moveableNode
    self.scrollDirection = scrollDirection
    super.init(frame: frame)

    CustomScrollView.scrollView = self
    self.frame = frame
    delegate = self
    indicatorStyle = .White
    scrollEnabled = true
    userInteractionEnabled = true
    //canCancelContentTouches = false
    //self.minimumZoomScale = 1
    //self.maximumZoomScale = 3

    if scrollDirection == .horizontal {
        let flip = CGAffineTransformMakeScale(-1,-1)
        transform = flip
    }
}

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

// MARK: - Touches
extension CustomScrollView {

/// Began
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {

    for touch in touches {
        let location = touch.locationInNode(currentScene)

        guard !CustomScrollView.disabledTouches else { return }

        /// Call touches began in current scene
        currentScene.touchesBegan(touches, withEvent: event)

        /// Call touches began in all touched nodes in the current scene
        nodesTouched = currentScene.nodesAtPoint(location)
        for node in nodesTouched {
            node.touchesBegan(touches, withEvent: event)
        }
    }
}

/// Moved
override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {

    for touch in touches {
        let location = touch.locationInNode(currentScene)

        guard !CustomScrollView.disabledTouches else { return }

        /// Call touches moved in current scene
        currentScene.touchesMoved(touches, withEvent: event)

        /// Call touches moved in all touched nodes in the current scene
        nodesTouched = currentScene.nodesAtPoint(location)
        for node in nodesTouched {
            node.touchesMoved(touches, withEvent: event)
        }
    }
}

/// Ended
override func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {

    for touch in touches {
        let location = touch.locationInNode(currentScene)

        guard !CustomScrollView.disabledTouches else { return }

        /// Call touches ended in current scene
        currentScene.touchesEnded(touches, withEvent: event)

        /// Call touches ended in all touched nodes in the current scene
        nodesTouched = currentScene.nodesAtPoint(location)
        for node in nodesTouched {
            node.touchesEnded(touches, withEvent: event)
        }
    }
}

/// Cancelled
override func touchesCancelled(touches: Set<UITouch>?, withEvent event: UIEvent?) {

    for touch in touches! {
        let location = touch.locationInNode(currentScene)

        guard !CustomScrollView.disabledTouches else { return }

        /// Call touches cancelled in current scene
        currentScene.touchesCancelled(touches, withEvent: event)

        /// Call touches cancelled in all touched nodes in the current scene
        nodesTouched = currentScene.nodesAtPoint(location)
        for node in nodesTouched {
            node.touchesCancelled(touches, withEvent: event)
        }
     }
   }
}

// MARK: - Touch Controls
extension CustomScrollView {

     /// Disable
    class func disable() {
        CustomScrollView.scrollView?.userInteractionEnabled = false
        CustomScrollView.disabledTouches = true
    }

    /// Enable
    class func enable() {
        CustomScrollView.scrollView?.userInteractionEnabled = true
        CustomScrollView.disabledTouches = false
    }
}

// MARK: - Delegates
extension CustomScrollView: UIScrollViewDelegate {

    func scrollViewDidScroll(scrollView: UIScrollView) {

        if scrollDirection == .horizontal {
            moveableNode.position.x = scrollView.contentOffset.x
        } else {
            moveableNode.position.y = scrollView.contentOffset.y
        }
    }
}

这将成为UIScrollView的子类并设置它的基本属性。它有自己的触摸方法，可以传递到相关的场景。

步骤2：在您想要使用的相关场景中，您可以创建滚动视图和可移动节点属性，如此

weak var scrollView: CustomScrollView!
let moveableNode = SKNode()

并将它们添加到didMoveToView

中的场景中

scrollView = CustomScrollView(frame: CGRect(x: 0, y: 0, width: self.frame.size.width, height: self.frame.size.height), scene: self, moveableNode: moveableNode, scrollDirection: .vertical)
scrollView.contentSize = CGSizeMake(self.frame.size.width, self.frame.size.height * 2)
view?.addSubview(scrollView) 


addChild(moveableNode)

您在第1行中执行的操作是使用场景维度初始化滚动视图助手。您还传递场景以供参考，以及您在步骤2中创建的moveableNode。第2行是设置scrollView的内容大小的地方，在这种情况下，它是屏幕高度的两倍。

步骤3： - 添加标签或节点等并定位它们。

label1.position.y = CGRectGetMidY(self.frame) - self.frame.size.height
moveableNode.addChild(label1)

在此示例中，标签将位于scrollView的第2页上。这是您必须使用标签和定位的地方。

我建议如果滚动视图中有很多页面，并且有很多标签要执行以下操作。在滚动视图中为每个页面创建一个SKSpriteNode，并使每个页面都与屏幕大小相同。将它们称为page1Node，page2Node等。您可以将第二页上所需的所有标签添加到page2Node。这里的好处是你基本上可以像往常一样在page2Node中定位你所有的东西，而不仅仅是在scrollView中定位page2Node。

你也很幸运，因为垂直使用scrollView（你说你想要的）你不需要做任何翻转和反向定位。

我制作了一些类func，所以如果你需要禁用你的scrollView，你可以在scrollView上覆盖另一个菜单。

CustomScrollView.enable()
CustomScrollView.disable()

最后不要忘记在转换到新场景之前从场景中删除滚动视图。在spritekit中处理UIKit时的痛苦之一。

scrollView?.removeFromSuperView()

How to create a vertical scrolling menu in spritekit?

https://github.com/crashoverride777/SwiftySKScrollView

Answer 2

你遇到了一段时间我遇到的问题。根本问题是您无法将SKNode添加到UIKit视图，也无法将UIKit视图添加到SKNodes。视图不是节点，节点不是视图，遗憾的是这不起作用。虽然您可以将UIKit元素添加到SKScene的视图属性中，但这是您可以接受的。在我终于得到它之前，我挣扎了很长一段时间。

我仍然混合使用UIKit和SpriteKit，顺便说一下，但我是以有限的方式这样做的，它从不依赖于向视图添加节点，反之亦然。

您最好的选择是创建一个类似于某种类型的SKNode来保存所有SKSpriteNodes，然后在touchesMoved：函数中调整其在屏幕上的位置。（基本上创建自己的基于SpriteKit的滚动视图）。

Answer 3

您可以使用SKCameraNode和比视口大的场景。这基本上是滚动视图的SpriteKit版本。

UIScrollView中的Swift SKSpritenodes

3 个答案: