ios - URLSession.shared.dataTask 中带有 JSON 和字典的 Swift 3 编译器错误

Question

在此特定应用代码的先前问题在帮助下“解决”之后，此代码出现了一个新问题:

var properties: [String] = []
var unsortedDetails: [String] = []
var contacts: [[String]] = []
var propertySorting: [(key: String, ind: String, link: Bool)] = []
var autolinks: [Bool] = []

并且，在 viewDidLoad 函数中:

let contactsRequest = URLRequest(url: URL(string: "https://script.google.com/macros/s/AKfycbxOLElujQcy1-ZUer1KgEvK16gkTLUqYftApjNCM_IRTL3HSuDk/exec?id=" + ID + "&sheet=" + Industry.replacingOccurrences(of: " ", with: "+", options: NSString.CompareOptions.literal, range: nil))!)

        let contactsTask = URLSession.shared.dataTask(with: contactsRequest as URLRequest)
        {(data, response, error) in
            do {
                let jsonResult: Dictionary = try JSONSerialization.jsonObject(with: data!, options: []) as! [String : Any]

                let results = jsonResult[self.Industry] as! [[String : Any]]

                for key in results[0].keys {
                    self.propertySorting.append(key: (key as? String)!, ind: results[0].value(forKey: key as! String) as! String, link: results[1].value(forKey: key as! String) as! String != "X")
                }
                self.propertySorting.sort(by: {Int($0.ind) < Int($1.ind)})

                for property in self.propertySorting {
                    self.properties.append(property.key)
                    self.autolinks.append(property.link)
                }

                for contact in results {
                    self.contacts.append([])
                    for key in self.properties {
                        self.contacts[self.contacts.count-1].append(contact.value(forKey: key) as! String)
                    }
                }

                DispatchQueue.main.async(execute: {
                    let listController = self.viewControllers[0] as! ListController

                    listController.properties = self.properties
                    listController.contacts = self.contacts
                    listController.autolinks = self.autolinks

                    listController.tableView.reloadData()
                })

            } catch {
                print("FATAL ERROR")
            }
        }

        contactsTask.resume()

现在遇到的问题是:Extra argument 'ind' in call 当调用 propertySorting.append(...) 时，如果删除此(以前工作的)ind 部分，将返回相同的错误对于链接

Answer 1

代替 NSArray 和 NSDictionary 使用 Swift 原生 Array 和 Dictionary 并使用 keys 与 Dictionary 获取所有键的数组。

let jsonResult: Dictionary = try JSONSerialization.jsonObject(with: data!, options: []) as! [String : Any]
let results = jsonResult[self.Industry] as! [[String : Any]]

for key in results[0].keys {

}

注意:无需对 Swift 原生类型对象使用 .mutableContainers 选项。