从字典创建SKTextureAtlas

Question

如果iOS项目有UIImages字典，如何在运行时从字典图像中正确创建SKTextureAtlas？我无法实现这个目标，虽然Apple的SKTextureAtlas类引用在声明图集时提示如下：convenience init！（字典属性：[NSObject：AnyObject]）。

例如，如何完成或重新编写以下代码以从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 = ???

Answer 1

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)