iphone - AFNetworking:setImageWithURLRequest 未设置图像

Question

我尝试在 tableViewCell 上使用 AFNetworking 的 setImageWithURLRequest 在 ImageView 上设置图像。如果我不在方法中包含 success 和 failure block ，如下所示:

[cell.thumbnailImageView setImageWithURL:url placeholderImage:nil]; 

一切正常，图像设置。不幸的是我需要积木。

这是我目前在 cellForRowAtIndexPath 中的内容:

if (self.images) { //check if the array of images is set, fetched from a URL

        NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString: [[self.images objectAtIndex:indexPath.row] objectForKey:@"tbUrl"]]];

        [cell.thumbnailImageView setImageWithURLRequest:request placeholderImage:[UIImage imageNamed:@"placeholder"] success:^(NSURLRequest *request, NSHTTPURLResponse *response, UIImage *image) {
                NSLog(@"success"); //it always lands here! But nothing happens
        } failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error) {
                NSLog(@"fail");
        }];

    }

Answer 1

来自UIImageView+AFNetworking.h:

If a success block is specified, it is the responsibility of the block to set the image of the image view before returning.

在你的成功 block 中，你需要说:

[cell.thumbnailImageView setImage: image]