ios - 无法从JSON Swift获取数据

我已经尝试了很多方法，但它们似乎都不起作用。我有这个JSON[{"id":"1","name":"Dua Kumayl","location":"IABAT","date":"2019-06-13","Islamic":"Shawwal 8,1440","time":"19:30:00.000000","imageURL":""]从此链接:http://iabat.org/data.php
我尝试使用以下代码在Swift中获取数据:

import UIKit
   struct Event: Decodable {
       let id, name, location, date: String
       let Islamic, time, imageURL: String
    }
   class EventsViewController: UIViewController {
         override func viewDidLoad() {
             super.viewDidLoad()
             let url = "http://iabat.org/data.php"
             guard let urlObj = URL(string: url) else {return}
              URLSession.shared.dataTask(with: urlObj) {(data,
    response, error) in

        do {
            var Events = try JSONDecoder().decode([Event].self, from:
       data!)

            for Event in Events {
                print("Hi")
                print(Event)
                print(Event.name)
            }
        }
        catch {
            print("error")
            }
        }
    }
}

但是出于某种原因，它不起作用。即使它是for Event in Events do / catch中的字符串，它也不会打印任何内容。

最佳答案

您需要通过调用dataTask来启动resume()，并且始终执行print(error)以遵循错误(如果有)

 class EventsViewController: UIViewController {
         override func viewDidLoad() {
             super.viewDidLoad()
             let url = "http://iabat.org/data.php"
             guard let urlObj = URL(string: url) else {return}
              URLSession.shared.dataTask(with: urlObj) {(data,
    response, error) in

        do {
            var Events = try JSONDecoder().decode([Event].self, from:
       data!)

            for event in Events {
                print("Hi")
                print(event)
                print(event.name)
            }
        }
        catch {
            print(error)
            }
        }.resume() // here
    }
}

关于ios - 无法从JSON Swift获取数据，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/56926783/