iOS: load an image from url

Question

I need to load an image from a url and set it inside an UIImageView; the problem is that I don\'t know the exact size of the image, then how can I show the image correctly?<

Answer 1

If you prefer you can even move it to an UIImage extension:

extension UIImage {
    
    //NOTE: This is not thread safe, please run it on a background thread.
    convenience init?(fromFile filePath:String) {
        guard let url = URL(string: filePath) else {
            return nil
        }
        
        self.init(fromURL: url)
    }
    
    //NOTE: This is not thread safe, please run it on a background thread.
    convenience init?(fromURL url:URL) {
        let imageData: Data
        
        do {
            imageData = try Data(contentsOf: url)
        } catch {
            return nil
        }
        
        self.init(data: imageData)
    }
    
}