IgListKit Swift

Question

我试图复制嵌套适配器示例，但它无效：

来自嵌套适配器示例：

private var number: Int?
    func objects(for listAdapter: ListAdapter) -> [ListDiffable] {
    guard let number = number else { return [] }
    return (0..<number).map { $0 as ListDiffable }
}

这是我对自己班级的所作所为：

private var storie: Stories?

func objects(for listAdapter: ListAdapter) -> [ListDiffable] {
    guard let storie = storie else { return [] }
    return (storie as ListDiffable) as! [ListDiffable]
}

但是我无法将storie转换为[ListDiffable]