ios - 类型 'Any' 在 Swift 3 Xcode 8 中没有下标成员

Question

我正在尝试将我的项目转换为 Swift 3 并不断收到此错误。除了这个错误，我已经修复了所有其他错误。我看到其他一些人遇到了问题，但我是 JSON 的新手，所以我不理解他们。任何帮助将不胜感激。

这是我的代码:

class func fetchPriceForSymbol(_ symbol: String, completion:@escaping (_ stock: StockPrice) -> ()) {

    DispatchQueue.global(priority: DispatchQueue.GlobalQueuePriority.default).async {

        let url = URL(string: "http://finance.yahoo.com/webservice/v1/symbols/\(symbol)/quote?format=json")
        let data = try? Data(contentsOf: url!)

        do {
            //let object = try JSONSerialization.jsonObject(with: data!, options: .allowFragments)
            let object = try! JSONSerialization.jsonObject(with: data!)
            if let dictionary = object as? [String: AnyObject] {
                let title = object["list"] as! NSDictionary
                let title2 = title["resources"] as AnyObject!
                let title3 = title2[0] as AnyObject!
                let title4 = title3["resource"] as AnyObject!
                let fields = title4["fields"] as AnyObject!


                let stockPrice = StockPrice (
                    price: fields["price"] as AnyObject! as! String
                )

                DispatchQueue.main.async {
                    completion(stock: stockPrice)
                }
            }
        } catch {
            // Handle Error
        }



    }
}

Answer 1

在中间的解析部分试试这个:

        let parsed = try JSONSerialization.jsonObject(with: data!, options: .allowFragments) as! [String:Any]
        let list = parsed["list"] as! [String:Any]?
        let resources = list?["resources"] as! [AnyObject]?
        let fields = resources?[0] as! [String:Any]?
        let resource = fields?["resource"] as! [String:Any]?
        let fields2 = resource?["fields"] as! [String:Any]?
        let price = fields2?["price"] as! String?