passing NSArray into tableview swift 3.0 - ios

Question

I'm trying to connect my swift ios app to mysql with php... and the upon receiving the JSON from the php.. i converted it into nsarray and tried to populate my tableview with it.. however it doesnt seem to show anything in the tableview when i run it.... the data is successful in passing into the NSArray as i see my result when i print(values).. it just cant seem to show up on my tableview and i dont know why
#IBOutlet weak var tableView: UITableView!
var values:NSArray = []
#IBAction func php(_ sender: Any) {
let url = NSURL(string: "http://localhost/try.php")
let data = NSData(contentsOf: url! as URL)
values = try! JSONSerialization.jsonObject(with: data! as Data, options:JSONSerialization.ReadingOptions.mutableContainers) as! NSArray
print (values)
tableView.reloadData()
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return values.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! CustomCell
cell.descriptionView.text = (values[indexPath.row] as AnyObject) as? String
return cell
}

Answer 1

That's the recommended way to load data over the network.
As mentioned in the comment do not use NSArray, NSData and NSURL in Swift 3. URLSession loads the data asynchronously and in the background. The table view is reloaded on the main thread.
var values = [[String:String]]()
#IBAction func php(_ sender: AnyObject) {
let url = URL(string: "http://localhost/try.php")!
let task = URLSession.shared.dataTask(with: url) { (data, response, error) in
if error != nil {
print(error!)
return
}
do {
self.values = try JSONSerialization.jsonObject(with: data!, options:[]) as! [[String:String]]
DispatchQueue.main.async {
self.tableView.reloadData()
}
} catch {
print(error)
}
}
task.resume()
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! CustomCell
let item = values[indexPath.row]
cell.descriptionView.text = item["title"]
return cell
}