👀 Views: 49 💬 Answers: 1 📅 Created: 2025-06-12

swiftui navigationlink ios16 swift

I've searched everywhere and can't find a clear answer. I'm building a feature where I'm working with an scenario with `NavigationLink` in SwiftUI not updating the view state as expected on an iPhone 14 running iOS 16... I've set up a simple navigation flow, but when I tap the link, the target view does load, yet the data doesn't refresh based on the state tied to the view model. Here's the relevant part of my code: ```swift struct ContentView: View { @StateObject var viewModel = MyViewModel() var body: some View { NavigationView { List(viewModel.items) { item in NavigationLink(destination: DetailView(item: item)) { Text(item.name) } } } } } struct DetailView: View { let item: Item var body: some View { Text("Detail for \(item.name)") .onAppear { // Attempting to fetch more data based on item viewModel.fetchData(for: item.id) } } } ``` I have checked that my `fetchData` function properly updates the `items` array in the `viewModel`, and I'm using `@Published` for the properties. However, it seems that the UI does not reflect the updated data after navigating back from the `DetailView`. I also verified the following: - The view model retains the correct state, and the `fetchData` function is called as expected. - The `@StateObject` and `@Published` property wrappers are correctly set. - No warnings or errors are shown in the console. I tried forcing the view to refresh by adding `self.objectWillChange.send()` in `fetchData`, but that didn't seem to help. Could this be a bug specific to the iPhone 14's version of iOS, or am I missing something fundamental in how `NavigationLink` handles state updates? Any advice would be greatly appreciated! The stack includes Swift and several other technologies. How would you solve this? I'm coming from a different tech stack and learning Swift. Could this be a known issue?