Question

FBSDKGraphRequest的结果属于任意类型，可以转换为NSDictionary，但如何将其转换为Data对象，以便能够使用此SWIFT4功能

let jsonDecoder = JSONDecoder.init()
let fbModel = try? jsonDecoder.decode(FBModel.self, from: dataFromResult)

我试试这个，但结果是代码注释为

    FBSDKGraphRequest.init(graphPath: "me", parameters: ["fields":"email,name,id"]).start{ (connection, results, error) -> Void in
           let dataFromResult = NSKeyedArchiver.archivedData(withRootObject: results)
           let stringFromData = String.init(data: dataFromResult, encoding: String.Encoding.utf8)//return nil
           let jsonDecoder = JSONDecoder.init()
           let fbModel = try? jsonDecoder.decode(FBModel.self, from: dataFromResult)//fbModel nil
}

Answer 1

它对我有用，但我不确定它是否是最佳解决方案

let resDataFromDic = try? JSONSerialization.data(withJSONObject: resDict, options: JSONSerialization.WritingOptions.prettyPrinted)

使用Swift4 JSONDecoder解析IOS FBSDKGraphRequest结果

1 个答案: