SDWebImage下载多个图像（iOS）

Question

For my iPhone app, I am trying to use SDWebImage to download multiple images from a list of links. The problem is after the images are downloaded, I don't know how to find out which image was downloaded from what link.

For example, I have a list of 25 image links. I use the following code for each link, where downloader is an instance of SDWebImageDownloader:

downloader = [SDWebImageDownloader downloaderWithURL:url delegate:self];

The above code starts the downloading process and once the image is downloaded, the following code is called:

- (void)imageDownloader:(SDWebImageDownloader *)downloader didFinishWithImage:(UIImage *)image 

From the above method, I can see the list of all my 25 images, but they are not in order (obviously). I was wondering if there is a way to keep a track of images and their corresponding image links. Any suggestions?

Answer 1

SDWebImageDownloader has an URL property, which is the corresponding image link:

- (void)imageDownloader:(SDWebImageDownloader *)downloader didFinishWithImage:(UIImage *)image 
{
    NSString* url = downloader.url;   
}