SwiftUI: implementing Dynamic List Item Deletion and Index Out of Range scenarios in iOS 17
I'm trying to debug I'm reviewing some code and I'm building a feature where I'm collaborating on a project where I'm sure I'm missing something obvious here, but I'm working with an scenario with dynamically deleting items from a SwiftUI List... When I delete an item, I notice that sometimes I get an 'Index out of range' behavior, especially when the delete action is performed rapidly or when the List is updated from a background thread. My setup involves a simple model conforming to `Identifiable` and using an `@ObservedObject` to manage my data source. Here's a snippet of my code: ```swift class Item: Identifiable, ObservableObject { let id: UUID @Published var name: String init(name: String) { self.id = UUID() self.name = name } } class ItemsViewModel: ObservableObject { @Published var items: [Item] = [] func deleteItem(at index: Int) { guard index < items.count else { return } items.remove(at: index) } } struct ContentView: View { @ObservedObject var viewModel = ItemsViewModel() var body: some View { List { ForEach(viewModel.items.indices, id: \.self) { index in Text(viewModel.items[index].name) .onDelete { indices in indices.forEach { index in viewModel.deleteItem(at: index) } } } } } } ``` I've tried wrapping the delete logic in a `DispatchQueue.main.async` block to ensure it runs on the main thread, but the scenario continues. Additionally, I'm not sure if the `ForEach` should be using the `indices` or the `items` directly, as I’ve seen both approaches in different examples. Sometimes, it seems like the item counts are getting out of sync with the UI. Also, I'm using Swift 5.7 and iOS 17. Do you have any suggestions on how to properly handle item deletion in a List to avoid these index errors? Any insights on managing List updates correctly would be appreciated. Any ideas what could be causing this? Has anyone else encountered this? I'm working in a Linux environment. What's the correct way to implement this? Any advice would be much appreciated. This issue appeared after updating to Swift 3.10. What would be the recommended way to handle this? This is for a mobile app running on macOS. Any advice would be much appreciated.