SDWebImage thumb +原始图像加载问题

Question

我正在尝试加载缩略图图像首先，然后请求原始版本的图像，但没有得到响应的原始图像请求。

[imageView sd_setImageWithURL:thumbUrl completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) {

    if (image) {

        imageView.image = image;

        if (originalUrl != nil) {

            [imageView sd_setImageWithURL:originalUrl placeholderImage:image completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL){

                if (image) {

                    imageView.image = image;
                }

            }];
        }
    }
}];

谢谢..

Answer 1

试一下这个案例

[imageView sd_setImageWithURL:thumbUrl completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) {
        if (originalUrl != nil) {
            [imageView sd_setImageWithURL:originalUrl placeholderImage:image completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL){
            }];
        }
    }
}];

这一条：

[[SDWebImageManager sharedManager] downloadImageWithURL:[NSURL URLWithString:path]
                                                        options:nil
                                                       progress:nil
                                                      completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) {
                                                          if (image)
                                                          {
                                                              [self.artworkImageView sd_setImageWithURL:[NSURL URLWithString:path2] placeholderImage:image
                                                                                              completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) {
                                                                                                  if (image)
                                                                                                      NSLog(@"magic");
                                                                                              }];
                                                          }
                                                      }];

Answer 2

我用以下代码解决了我的问题

UIImageView * hiddenImageView = [[UIImageView alloc] init];

[hiddenImageView sd_setImageWithURL:thumbUrl completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) {

    if (image) {

        mImageView.image = image;
    }

    if (originalUrl != nil) {

        [mImageView sd_setImageWithURL:originalUrl placeholderImage:image completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL){

            if (image) {

                mImageView.image = image; // optional
            }

        }];

    }
}];