CODEWITHSUNDEEP
iosswiftuitableviewswift3
user1591668
user1591668

Reputation: 2883

IOS swift how can I populate my TableView with Json data being returned

I have just started working with Swift and am able to do some basic things. Right now I am trying to populate my UITableView with Json Data that I am successfully retrieving. Right now I have this simple Table that looks like this

enter image description here

That is a basic TableView that I was able to create with this code

  @IBOutlet var StreamsTableView: UITableView!

    let groceries = ["Fish","lobster","Rice","Beans"]




     func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
     {
       let mycell:UITableViewCell = StreamsTableView.dequeueReusableCell(withIdentifier: "prototype1", for: indexPath)

        mycell.textLabel?.text = groceries[indexPath.row]
        return mycell
    }

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
    {
        return groceries.count
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        StreamsTableView.dataSource = self
}

I now have a JsonRequest that I am completing successfully using this code below

 override func viewDidLoad() {
        super.viewDidLoad()
        StreamsTableView.dataSource = self

        // Do any additional setup after loading the view.

        var names = [String]()
        let urlString = "http://localhost:8000/streams"

        let url = URL(string: urlString)
        URLSession.shared.dataTask(with:url!, completionHandler: {(data, response, error) in
            if error != nil {
                print(error)
            } else {
                do {

                    let parsedData = try JSONSerialization.jsonObject(with: data!, options: .allowFragments) as! [String:Any]
                    if let Streams = parsedData["Streams"] as! [AnyObject]? {

                    for Stream in Streams {
                        if let post = Stream["post"] as? String {
                            names.append(post)
                        }
                        }
                    }

                } catch let error as NSError {
                    print(error)
                }
        print(names)
            }

        }).resume()

    }

What I essentially like to do is put the value of 

let post = Stream["post"] as? String

inside the TableView instead of the Groceries array . As I stated before the value is coming back from the Json, I just have not found any way that I could put that value inside the TableView any help would be great . I am using swift 3.0 .

Upvotes: 1

Views: 491

Answers (3)

neprocker
neprocker

Reputation: 170

if let Streams = parsedData["Streams"] as! [AnyObject]? {

                for Stream in Streams {
                    if let post = Stream["post"] as? String {
                        names.append(post)
                    }
                }
            }

            StreamsTableView.reloadData()

Upvotes: 1

Abhishek
Abhishek

Reputation: 90

After loop done

StreamsTableView.reloadData()

update:

mycell.textLabel?.text = groceries[indexPath.row]

to

mycell.textLabel?.text = names[indexPath.row]

Upvotes: -1

Lu_
Lu_

Reputation: 2685

Add reloading data code 

DispatchQueue.main.async {
    StreamsTableView.reloadData()
}

just after your for loop 

for Stream in Streams { ...

Upvotes: 1

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