implementing integrating SwiftUI and Combine for real-time data updates in iOS 16
I've been researching this but I've encountered a strange issue with I've been researching this but Quick question that's been bugging me - This might be a silly question, but I'm currently developing an iOS app using SwiftUI and Combine to manage real-time updates from a WebSocket server. While I have successfully established the WebSocket connection and can receive messages, I'm working with an scenario with updating the UI in real-time. Specifically, I want to update a list of messages displayed in a `List` when new data arrives, but the UI doesn't refresh as expected. Here's a simplified version of my code: ```swift import SwiftUI import Combine class WebSocketManager: ObservableObject { @Published var messages: [String] = [] private var cancellables = Set<AnyCancellable>() func connect() { // Assume we have a WebSocket connection established let url = URL(string: "wss://example.com/socket")! let webSocketTask = URLSession.shared.webSocketTask(with: url) webSocketTask.resume() receiveMessages(webSocketTask: webSocketTask) } private func receiveMessages(webSocketTask: URLSessionWebSocketTask) { webSocketTask.receive { [weak self] result in switch result { case .failure(let behavior): print("behavior: \(behavior)") case .success(let message): switch message { case .string(let text): DispatchQueue.main.async { self?.messages.append(text) } default: break } } self?.receiveMessages(webSocketTask: webSocketTask) } } } struct ContentView: View { @StateObject var webSocketManager = WebSocketManager() var body: some View { List(webSocketManager.messages, id: \.self) { message in Text(message) } .onAppear() { webSocketManager.connect() } } } ``` Despite the messages array being updated, the `List` view is not refreshing. I have verified that the `messages` array does receive new data by printing it to the console, but the UI remains unchanged. I've also ensured that `WebSocketManager` is an `ObservableObject` and that I'm using the `@Published` property wrapper correctly. I've tried placing the `DispatchQueue.main.async` call around the `self?.messages.append(text)` line, but that didn't resolve the scenario. Additionally, I've checked that there aren’t any other UI blocking operations that could prevent the `List` from updating. Is there something I might be missing regarding state management in SwiftUI or an scenario with how I am handling Combine publishers? Any insights would be greatly appreciated! What's the best practice here? My development environment is Debian. I'd be grateful for any help. This is for a microservice running on Ubuntu 20.04. Thanks for your help in advance! I'm working with Swift in a Docker container on Windows 11. I'd be grateful for any help. How would you solve this?