Handling Image Caching with SDWebImage in Swift for iOS 15+
I'm experiencing issues with image caching while using the SDWebImage library in my iOS 15 project. I have set up my UIImageView to load images from a remote URL, but the images seem to be caching improperly, causing outdated images to display. Here’s the code snippet I’m using: ```swift import SDWebImage class MyViewController: UIViewController { @IBOutlet weak var myImageView: UIImageView! override func viewDidLoad() { super.viewDidLoad() loadImage() } func loadImage() { let imageUrl = URL(string: "https://example.com/image.png") myImageView.sd_setImage(with: imageUrl, placeholderImage: UIImage(named: "placeholder.png")) } } ``` I’ve tried clearing the cache before loading the image by calling `SDImageCache.shared.clearMemory()` and `SDImageCache.shared.clearDisk(onCompletion: nil)`, but that didn’t resolve the issue. I also checked if the remote server is setting appropriate cache headers, and it appears to be using `Cache-Control: no-cache` correctly. Despite these configurations, when I change the image on the server and reload the app, I still see the old image displayed. I’ve also tried appending a query parameter to the URL to bypass the cache, like this: ```swift let imageUrl = URL(string: "https://example.com/image.png?timestamp=\(Date().timeIntervalSince1970)") ``` This worked initially, but it seems to revert to the cached version on subsequent loads. I've also checked for any image processing that might affect how SDWebImage caches its images. I’m running SDWebImage version 5.0.0. Is there something I’m missing in the configuration, or is there a better way to handle this caching issue? Any insights or solutions would be appreciated! I'm developing on macOS with Swift. I'm open to any suggestions.