Array doesn't save - ios

Question

Getting a JSON object from a rest web service I get the data from the object and I want to show it in a tableview.
class TableViewController1: UITableViewController {
var nomProduit = ["ok"]
var prixProduit = [""]
var vt1 : String?
var vt2 : String?
var i : Int!
var compteur1:Int!
var resultat1:NSArray?
var x : AnyObject?
override func viewDidLoad() {
super.viewDidLoad()
// \(detectionString)
let str:String = "http://vps43623.ovh.net/yamoinscher/api/products/6194005492077"
let url = NSURL(string: str)!
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)
self.resultat1 = jsonResult["meme_categorie"] as? NSArray
self.compteur1 = self.resultat1!.count
print(self.compteur1!)
//self.value = (compteur1 as? Int)!
for self.i=0 ; self.i < self.compteur1! ; self.i = self.i+1 {
if let aStatus = self.resultat1![self.i] as? NSDictionary{
self.vt1 = aStatus["libelle_prod"]! as? String
self.nomProduit.append(self.vt1!)
self.vt2 = aStatus["prix"]! as? String
self.prixProduit.append(self.vt2!)
//print(self.nomProduit[self.i])
}
}
} catch {
print("JSON serialization failed")
}
}
}
task.resume()
}
Then My problem is that this array stays nil:
self.prixProduit.append(self.vt2!)
here is the rest of my code
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 17
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("cell1", forIndexPath: indexPath) as! customCell1
// cell.PrixSim.text = nomProduit[indexPath.row]
print(self.nomProduit[0])
return cell
}

Answer 1

First of all use a custom struct for the category objects, it makes things so much easier.
At the beginning of TableViewController1
class TableViewController1: UITableViewController {
declare this struct
struct Produit {
var id : String
var prix : String
var title : String
}
and a data source array (forget all your other properties / variables)
var produits = [Produit]()
In viewDidLoad get the data, populate the data source array and reload the table view on the main thread.
This code uses Swift native collection types
override func viewDidLoad() {
super.viewDidLoad()
// \(detectionString)
let str = "http://vps43623.ovh.net/yamoinscher/api/products/6194005492077"
let url = NSURL(string: str)!
let task = NSURLSession.sharedSession().dataTaskWithURL(url) { (data, response, error) -> Void in
if let urlContent = data {
do {
let jsonObject = try NSJSONSerialization.JSONObjectWithData(urlContent, options: [])
if let jsonResult = jsonObject as? [String:AnyObject] {
if let memeCategorie = jsonResult["meme_categorie"] as? [[String:String]] {
for categorie in memeCategorie {
if let prix = categorie["prix"], title = categorie["libelle_prod"], id = categorie["id"] {
self.produits.append(Produit(id: id, prix: prix, title: title))
}
}
dispatch_async(dispatch_get_main_queue()) {
self.tableView.reloadData()
}
}
}
} catch {
print("JSON serialization failed", error)
}
} else if let connectionError = error {
print("connection error", connectionError)
}
}
task.resume()
}
In numberOfRowsInSection return the actual number of items rather than a hard-coded number.
You can omit numberOfSectionsInTableView since the default value is 1.
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return produits.count
}
In cellForRowAtIndexPath get the item by index path and assign the values to your labels (or whatever). For now the values are just printed out.
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("cell1", forIndexPath: indexPath) as! customCell1
let produit = produits[indexPath.row]
print(produit.id, produit.title, produit.prix)
return cell
}
}