Swift JSON tableview | 易学教程

问题

I'm really struggling to parse this JSON (https://www.kimonolabs.com/api/7flcy3qm?apikey=gNq3hB1j0NtBdAvXJLEFx8JaqtDG8y6Y) and populate a tableview with the "Date" text, "Event" text, "Hasta" text and "Location" text. I realize this is probably easy for a non-newb. Here's my probably terrible code:

import UIKit
import Foundation

class MasterTableViewController: UITableViewController {

  var vigoData = [String]()


  override func viewDidLoad() {
    super.viewDidLoad()

    splitViewController!.preferredDisplayMode = UISplitViewControllerDisplayMode.AllVisible


    UINavigationBar.appearance().barTintColor = UIColor(red: 52.0/255.0, green: 170.0/255.0, blue: 220.0/255.0, alpha: 1.0)
    UINavigationBar.appearance().tintColor = UIColor.whiteColor()
    UINavigationBar.appearance().titleTextAttributes = [NSForegroundColorAttributeName : UIColor.whiteColor()]

    let url = NSURL(string: "https://www.kimonolabs.com/api/7flcy3qm?apikey=gNq3hB1j0NtBdAvXJLEFx8JaqtDG8y6Y")!

    let task = NSURLSession.sharedSession().dataTaskWithURL(url) { (data, response, error) -> Void in


        if let urlContent = data {


            do {

           let jsonResult = try NSJSONSerialization.JSONObjectWithData(urlContent, options: NSJSONReadingOptions.MutableContainers)

                if let eventData = jsonResult["Collection2"] as? [[String: AnyObject]] {

                    for event in eventData {

                        if let _ = event["Event"] as? String {

                            self.vigoData.append("text")

                        }


                    }


                }

                print(self.vigoData)

            } catch {

                print("JSON Serialization failed")

            }

        }


    }

    task.resume()

  }

  override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
  }

  // MARK: - Table view data source

  override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
    // #warning Incomplete implementation, return the number of sections
    return 0
  }

  override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    // #warning Incomplete implementation, return the number of rows
    return 0
  }

回答1:

There is a typo Collection2 vs. collection2 but the main problem that there is a key resultsat the top level of the JSON dictionary which contains the dictionary collection2

…    
let jsonResult = try NSJSONSerialization.JSONObjectWithData(urlContent, options: NSJSONReadingOptions.MutableContainers)
let results =  jsonResult["results"] as! [String: AnyObject]
if let collection2 = results["collection2"] as? [[String: AnyObject]] {
  for eventData in collection2 {
    print(eventData["Location"]!)
    print(eventData["Hasta"]!)
    if let event = eventData["Event"] as? [String: String] {
      // self.vigoData.append("text")
      print(event["text"]!)
    }
  }
}
…

PS: There is no Date key in collection2

来源：https://stackoverflow.com/questions/33302547/swift-json-tableview

标签

ios

json

swift

uitableview

populate