如何添加子视图查看器迅速? [英] How to add child to view controller swift?

问题描述

我正在尝试将图像添加到视图控制器上的特定坐标，我已经导入了SpriteKit来查看是否有帮助.我只需要添加图像并能够在UIBezierPath上移动它，但它不会让我添加Child.

Im trying to add an image to a specific coordinate on the view controller, I already imported SpriteKit to see if that could help. I just need to add the image and be able to move it on a UIBezierPath but it wont let me add Child.

    var blueDot = SKSpriteNode()
    var blackDot = SKSpriteNode()
    var levelLabelInt = levelLabel.text!.toInt()

    var blueDotTexture = SKTexture(imageNamed: "Sprites.atlas/BlueDot.png")
    blueDot = SKSpriteNode(texture: blueDotTexture)
    blueDot.position = CGPoint(x: (50), y: levelLabelInt! + 100)
    self .addChildViewController: ViewController (blueDot)

推荐答案

通过查看上面的 code ，您的问题之一是 self 和 .addChildViewController

By looking at the code above, one of your issues is a space between self and .addChildViewController

在Swift中，要向 self 发送消息，您必须使用.dotSyntax.并且 addChild()函数需要一个 UIViewController

In Swift to send a message to self you have to use .dotSyntax. and the addChild() function requires an argument of type UIViewController

self.addChild(blueDot)语法正确，但是blueDot类型: SKNode 和 SKNode 不继承自UIViewController，因此您无法通过该论点.

self.addChild(blueDot) syntax is correct but blueDot is of type: SKNode and SKNode doesn't inherit from UIViewController so you can't pass that argument.

我建议您改为这样做:

    let image = UIImage(named: "Sprites.atlas/BlueDot.png")
    let imageView = UIImageView(image: image)
    self.view.addSubview(imageView)

现在，您在ViewController的视图层次结构中有一个图像，或者您更喜欢引用它:父对象中的一个子对象.

Now you have an image inside your ViewController's views hierarchy or as you prefer to refer to it: a child object inside your parent object.

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