Images are not loading properly

Question

I have very simple iOS app - it have TableView and list of custom cells in this TableView. There is an ImageView (that use downloadedFrom method to load images) in each cell.

After updating my Xcode to 8 version and converting project to Swift 2.3 I got very interesting result when - I reload list of items inside TableView - first cells on screen don't have any images and when i start to scroll down i see that other images are loaded fine. When scroll back to top - all images are fine.

I also tried to change the way of image loading to library called SDWebImage but result is the same. What is wrong?

extension UIImageView {
func downloadedFrom(link link:String, contentMode mode: UIViewContentMode) {
    guard
        let url = NSURL(string: link)
        else {return}
    contentMode = mode
    NSURLSession.sharedSession().dataTaskWithURL(url, completionHandler: { (data, response, error) -> Void in
        guard
            let httpURLResponse = response as? NSHTTPURLResponse where httpURLResponse.statusCode == 200,
            let mimeType = response?.MIMEType where mimeType.hasPrefix("image"),
            let data = data where error == nil,
            let image = UIImage(data: data)
            else { return }
        dispatch_async(dispatch_get_main_queue()) { () -> Void in
            self.image = image
        }
    }).resume()
}}

SDWebImage working perfectly if you need then i upload my code that i use — Himanshu Moradiya, Oct 18 '16 at 12:46
I am sure that it works well but it shows the same behaviour: first cells don't have any images until i start to scroll — moonvader, Oct 18 '16 at 12:55
Then use placeholder for this . its show you your place holder image until your image not download and not loaded into image view — Himanshu Moradiya, Oct 18 '16 at 12:58
They are not loaded at all. Doesn't matter how much time i will spend looking on placeholders - images are not loading until i start to scroll table — moonvader, Oct 18 '16 at 13:03
i also didn't see any problems before updating to xcode 8 / swift 2.3 — moonvader, Oct 18 '16 at 13:08
ohh then say that you are working in xcode 8.0 and swift version 2.3 — Himanshu Moradiya, Oct 18 '16 at 13:10
Ya i read it but in my mind i thinking it about Xcode 7.3 and swift 2.0 . so sorry about it i don't have Xcode 8.0 in my mac right now . if i solve your issue in my friends pc then i give you update . — Himanshu Moradiya, Oct 18 '16 at 13:15

score 1 · Accepted Answer · edited May 23 '17 at 11:48

1

The problem was not in the loading method but in rounded corners of images. The problem with rounded corners in Xcode 8 and iOS 10 can be found here.

edited May 23 '17 at 11:48

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answered Oct 18 '16 at 16:12

moonvader

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Images are not loading properly

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