-
-
Save takasurazeem/de3823252be2039b0296e3315b8ea8db to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
extension UIImageView { | |
/// Loads image from web asynchronosly and caches it, in case you have to load url | |
/// again, it will be loaded from cache if available | |
func load(url: URL, placeholder: UIImage?, cache: URLCache? = nil) { | |
let cache = cache ?? URLCache.shared | |
let request = URLRequest(url: url) | |
if let data = cache.cachedResponse(for: request)?.data, let image = UIImage(data: data) { | |
self.image = image | |
} else { | |
self.image = placeholder | |
URLSession.shared.dataTask(with: request, completionHandler: { (data, response, error) in | |
if let data = data, let response = response, ((response as? HTTPURLResponse)?.statusCode ?? 500) < 300, let image = UIImage(data: data) { | |
let cachedData = CachedURLResponse(response: response, data: data) | |
cache.storeCachedResponse(cachedData, for: request) | |
self.image = image | |
} | |
}).resume() | |
} | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment