ios - 快速获取字典中数组的值

Question

所以我有一个数组作为我在字典中的一个键的值，我想获取它以将其设置为 UITableViewCell 的文本。我如何得到它？我一直在使用 Objective-C 编写代码，并且开始学习 Swift。

var content: [String: Any] = ["content": ["North America", "Europe West", "Europe Nordic & East", "Oceania", "Russia", "Turkey", "Brazil", "Latin America North", "Latin America South"], "footer": "Select the League of Legends region for this app to use."]

autoreleasepool { () -> () in
    var temp = self.content["content"]
    cell.textLabel?.text = temp[indexPath.row] as String
}

这会返回 2 个错误 '_??' is not convertible to 'int'和 '<<error type>>?' is not convertible to 'int'

Answer 1

您应该将字典值声明为 AnyObject。您还应该使用 if let 来解包您的可选值:

let content: [String:AnyObject] = ["content": ["North America", "Europe West", "Europe Nordic & East", "Oceania", "Russia", "Turkey", "Brazil", "Latin America North", "Latin America South"], "footer": "Select the League of Legends region for this app to use."]

if let temp = content["content"] as? [String] {
     cell.textLabel!.text = temp[indexPath.row]
}