Handling Asynchronous Image Loading in SwiftUI with Caching Issues
I'm getting frustrated with I'm integrating two systems and I'm working on a project and hit a roadblock... I've looked through the documentation and I'm still confused about Currently developing a SwiftUI application where I need to display a list of images fetched from a remote API. The images are being loaded asynchronously to improve performance, but I’m encountering issues with caching that lead to flickering when scrolling. After loading the images, it seems that the view is not maintaining the state of previously loaded images during the fast scrolling. I’ve implemented a basic image loading function using `URLSession`, but the caching mechanism isn’t behaving as expected. Here’s part of my code: ```swift import SwiftUI import Combine struct RemoteImageView: View { @State private var image: UIImage? = nil private var imageUrl: String init(imageUrl: String) { self.imageUrl = imageUrl } var body: some View { image.map { Image(uiImage: $0) .resizable() .aspectRatio(contentMode: .fit) } ?? AnyView(ProgressView()) } func loadImage() { guard let url = URL(string: imageUrl) else { return } let cache = URLCache.shared if let cachedResponse = cache.cachedResponse(for: URLRequest(url: url)) { image = UIImage(data: cachedResponse.data) } else { URLSession.shared.dataTask(with: url) { data, response, error in if let data = data, let response = response { cache.storeCachedResponse(URLResponse(url: url, mimeType: response.mimeType, expectedContentLength: data.count, textEncodingName: nil), for: URLRequest(url: url)) DispatchQueue.main.async { self.image = UIImage(data: data) } } }.resume() } } } ``` I call `loadImage()` in the `onAppear` of my `RemoteImageView`, but the flickering persists, especially when scrolling quickly. It feels like the views are being recreated instead of maintaining their state. Should I consider a different caching strategy or is there a better way to handle the image loading in SwiftUI to avoid this behavior? Additionally, any recommendations for libraries that manage image caching effectively would be greatly appreciated. This is part of a larger application I'm building. Is there a better approach? For context: I'm using Swift on Ubuntu. I'm coming from a different tech stack and learning Swift. Cheers for any assistance! This is for a application running on Windows 10. Am I approaching this the right way?