Swift: UITableViewCell not updating after data changes in a different thread
I tried several approaches but none seem to work. I can't seem to get I'm trying to figure out I'm learning this framework and I've been banging my head against this for hours... I'm experiencing an issue where my `UITableViewCell` is not updating correctly after I modify the data source from a background thread. I have a `UITableView` that displays a list of items, and I fetch new data asynchronously from an API. Once I receive the data, I update my data model and call `reloadData()` on the main thread. However, the cells do not reflect the updated data until I perform a manual refresh (like pulling down to refresh). I'm using Swift 5.7 and UIKit on iOS 17. Here's a simplified version of my code: ```swift class MyViewController: UIViewController, UITableViewDataSource { @IBOutlet weak var tableView: UITableView! var items: [String] = [] override func viewDidLoad() { super.viewDidLoad() tableView.dataSource = self fetchData() } func fetchData() { DispatchQueue.global().async { [weak self] in // Simulate network call sleep(2) let newData = ["Item 1", "Item 2", "Item 3"] DispatchQueue.main.async { self?.items = newData self?.tableView.reloadData() } } } func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { return items.count } func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) cell.textLabel?.text = items[indexPath.row] return cell } } ``` After the data is fetched and assigned to `items`, `reloadData()` is called, but the cells are not showing the updated text until I manually refresh the table view. I also tried using `beginUpdates()` and `endUpdates()` around the reload, but that didn't change anything. Is there something I'm missing here, or a best practice for updating table view content after making changes in a background thread? Any help would be appreciated! This is part of a larger API I'm building. Any help would be greatly appreciated! I'm developing on Ubuntu 20.04 with Swift. Any advice would be much appreciated. This is my first time working with Swift 3.9. Am I approaching this the right way? I'm using Swift latest in this project. I'm coming from a different tech stack and learning Swift. Has anyone else encountered this?