从字典创建 SKTextureAtlas

Creating an SKTextureAtlas from a dictionary

如果一个 iOS 项目有一个 UIImages 字典,如何在运行时从字典图像正确创建 SKTextureAtlas?尽管 Apple 的 SKTextureAtlas class 参考在声明图集时提出了以下建议:convenience init!(dictionary properties: [NSObject : AnyObject]),但我未能实现此目标。

例如,如何完成或修改以下代码以从 tempDictionary 中的 UIImages 创建 SKTextureAtlas?

var strawberryDrawing:UIImage = UIImage(named: "strawberry")!
var bananaDrawing:UIImage = UIImage(named: "banana")!

var tempDictionary:[String:UIImage] = ["First Fruit":strawberryDrawing, "Second Fruit":bananaDrawing]

var atlasOfFruitDrawings:SKTextureAtlas = ???
let strawberryDrawing = UIImage(named: "strawberry")!
let bananaDrawing = UIImage(named: "banana")!
let tempDictionary: [NSObject:AnyObject] = ["First Fruit":strawberryDrawing, "Second Fruit":bananaDrawing]
let atlasOfFruitDrawings = SKTextureAtlas(dictionary: tempDictionary)