I can't print to TableView data with Swift JSON - json

Question

I'm new to using JSON and wanted to start with a simple app to provide an overview of the movie. The following code does not print anything on the tableView, the app remains empty, with no results. He makes no mistakes. In the debug area, however, the data prints them to me. How can I get the results on the tableView?
ViewController.swift
import UIKit
class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
var popularMoviesArray = [Results]()
var swiftManager = SwiftManager()
var tableViewCell = TableViewCell()
#IBOutlet weak var tableView: UITableView!
#IBOutlet weak var labelError: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
tableView.delegate = self
tableView.dataSource = self
swiftManager.delegate = self
swiftManager.fetchUrl()
self.tableView.reloadData()
}
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return popularMoviesArray.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! TableViewCell
let item = popularMoviesArray[indexPath.row]
cell.labelTitle.text = item.title
cell.labelYear.text = item.release_date
cell.labelRate.text = String(item.vote_average ?? 0.0)
cell.labelOreview.text = item.overview
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
performSegue(withIdentifier: "goToDetail", sender: indexPath.row)
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
guard segue.identifier != nil else {
return
}
let letRow = sender as? Int
switch segue.identifier {
case "goToDetail":
(segue.destination as! ViewControllerDetail).itemDetail = popularMoviesArray[letRow!]
default:
return
}
}
}
extension ViewController: SwiftManagerDelegate {
func didUpdateStruct(_ swiftManager: SwiftManager, swiftData: SwiftData) {
DispatchQueue.main.async {
self.popularMoviesArray = swiftData.results
print("PRINT ARRAY - \(self.popularMoviesArray)")
}
}
func didFailWithError(error: Error) {
print(error)
}
}

Answer 1

You have to reload the table view in the delegate method because the data is loaded asynchronously
func didUpdateStruct(_ swiftManager: SwiftManager, swiftData: SwiftData) {
DispatchQueue.main.async {
self.popularMoviesArray = swiftData.results
self.tableView.reloadData()
print("PRINT ARRAY - \(self.popularMoviesArray)")
}
}
Reloading the table view in viewDidLoad is pointless.