ios - 在 Swift iOS9 中从 Json 数据中提取值

Question

我从服务器检索了以下 JSon 数据，我想提取值名称并将它们作为模型存储在数组或字典中。问题是返回的值本身是另一个字典的形式。我如何提取频率、描述和数量的值并将它们更新到我的表格 View 。下面是我从服务器请求中获得的 Json 数据格式。我是 swift 新手，字典和数组的概念让我很困惑

{
"payment" =     (
            {
        amount = 100;
        currency = USD;
        description = "Awesome Videos";
        frequency = Day;
    },
            {
        amount = 500;
        currency = USD;
        description = "Awesome Videos";
        frequency = Week;
    },
            {
        amount = 3000;
        currency = USD;
        description = "Awesome Videos";
        frequency = Months;
    }
);

}

我想将它们本地存储在字典或数组中，并将它们更新到我的表格 View 中。

这也是我从服务器获取数据的代码

let task = NSURLSession.sharedSession().dataTaskWithRequest(request) { (data, response, error) -> Void in
        if (data != nil){
            print(data)
            do {

                // let jsonResult = try NSJSONSerialization.JSONObjectWithData(data!, options:NSJSONReadingOptions.MutableContainers)
                let jsonResult = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableContainers)

                print(jsonResult)
                print(jsonResult["payment_plans"])



                if let plan_list = jsonResult as? NSDictionary{
                    print("got dictionary")

                    for (key, value) in plan_list
                    {
                        print(value)
                        print("printing keys")
                        print(key)

                        if let plans = value as? NSDictionary
                        {
                            print("printing values")
                            print(plans)
                            print(plans["currency"])
                        }
                    }
                }

            }   catch{
                print("Json Serialization failed")
            }
        }

    }
    /*
    if (response != nil){
    print(response)
    }
    else{
    print(error)
    }
    }
    */
    task.resume()
}

我被困在这里如何提取我在字典中得到的值。提前致谢

Answer 1

嗨，您可以按以下方式迭代您的结果:

if((jsonResult) != nil) {
    let swiftyJsonVar = jsonResult!
    do {
       if let dicObj = swiftyJsonVar as? NSDictionary {
           print("Response is dictionary")
           print(dicObj)
           let arrObj = dicObj["payment"] as NSArray
            // Then iterate your arrObj and do as per your need.
            //for eg.
           arrObj[0]["description"]
        }
    }
}