SDWebImage does not load remote images until scroll

Question

I am using SDWebImage library to load remote images into a table view which uses a custom cell class i have created. I simply use

[cell.imageView setImageWit         


        

Answer 1

I met the same problem，I found UIImageView+WebCache cancel last download when a new download come.

I not sure whether this is the intention of the author. So I write a new category of UIImageView base on SDWebImage.

Easy to use:

[cell.imageView mq_setImageWithURL:[NSURL URLWithString:@"http://www.domain.com/path/to/image.jpg"]
                   groupIdentifier:@"customGroupID"
                         completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) {

                         }];

To view more: ImageDownloadGroup

Advanced usage:

//  create customGroup
MQImageDownloadGroup *customGroup = [[MQImageDownloadGroup alloc] initWithGroupIdentifier:@"tableViewCellGroup"];
customGroup.maxConcurrentDownloads = 99;

//  add to MQImageDownloadGroupManage
[[MQImageDownloadGroupManage shareInstance] addGroup:customGroup];

//  use download group
[cell.imageView mq_setImageWithURL:@"https://xxx"
                   groupIdentifier:@"tableViewCellGroup"
                         completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) {

                         }];