UITableView not updating after NSArray changed

Question

I have async request to HTTP, i want to read JSON and fill my viewtable.

I get data with request, i make NSArray, but i can pass it inside my functions, tableView number

Answer 1

You need to call reloadData() method after json data is downloaded:

class ThirdView: UITableViewController {
    var jsonz: NSArray = ["Ray Wenderlich"]
    let url = NSURL(string: "http://iweddings.ru/xmlrestaurant.json")

    override func viewDidLoad() {
        super.viewDidLoad()

        let task = NSURLSession.sharedSession().dataTaskWithURL(url!) {(data, response, error) in
            let json = NSJSONSerialization.JSONObjectWithData(data!, options: nil, error: nil) as! NSArray
            println(json)

            self.jsonz = json;
            self.tableView.reloadData()
        }

        task.resume()
    }


    override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        return 1;
    }

    override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        println(self.jsonz.count);
        return self.jsonz.count;
    }
}