我正在尝试将SwiftyJSON与我的JSON api数据一起使用,但是在理解转换工作原理时遇到了困难。
这里有一个指向SwiftyJSON Git的链接:https://github.com/SwiftyJSON/SwiftyJSON
这是我当前的代码:

func newFilms() {

        let apiKey = "12345"
        let url = URL(string: "https://api.themoviedb.org/3/movie/now_playing?api_key=\(apiKey)&language=en-US&page=1")
        let request = URLRequest(
            url: url! as URL,
            cachePolicy: URLRequest.CachePolicy.reloadIgnoringLocalCacheData,
            timeoutInterval: 10 )

        let session = URLSession (
            configuration: URLSessionConfiguration.default,
            delegate: nil,
            delegateQueue: OperationQueue.main
        )

        let task = session.dataTask(with: request, completionHandler: { (dataOrNil, response, error) in
            if let data = dataOrNil {
                if let resposeDictionary = try! JSONSerialization.jsonObject(with: data, options:[]) as? [String: Any] {

                    self.films = (resposeDictionary["results"] as? [String: Any])!
                    print("response: \(resposeDictionary)")
                }

            }

            self.filteredFilms = self.films
            self.filmsCollection.reloadData()

        })


        task.resume()

    }

下面是新的SwiftyJSON的示例:
let json = JSON(data: dataFromNetworking)
if let userName = json[0]["user"]["name"].string {
print("\(userName)")
//Now you got your value
}

我的主要问题是,它所说的data: datafromNetworking会去哪里,我很困惑原始代码的哪个部分应该实现,以及如何将其用于新版本。

最佳答案

dataFromNetworking表示从dataTask返回的data对象。SwiftyJSON进行反序列化。
替换

if let data = dataOrNil {
    if let resposeDictionary = try! JSONSerialization.jsonObject(with: data, options:[]) as? [String: Any] {

        self.films = (resposeDictionary["results"] as? [String: Any])!
        print("response: \(resposeDictionary)")
    }
}

具有
if let data = dataOrNil {
    do {
        let json = try JSON(data: data)
        self.films = json["results"].dictionaryValue
    } catch { print(error) }
}

然而,在Swift 4中,由于支持强大的内置SwiftyJSON协议,变得过时了

关于json - JSON序列化为SwiftyJSON,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/52706439/

10-11 22:26
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