ios - AFNetworking 2 setImageWithURL 自定义响应类型 image/jpeg

Question

我正在使用 AFNetworking 2。我有一个 UITableview 并且每一行都包含一个图像。

问题是响应类型是 image/pjpeg，默认情况下这不是可接受的类型。为了解决这个问题，我在第 599 行附近修改了 AFURLResponseSerialization.m。将此内容类型添加到 self.acceptableContentTypes 声明的末尾。

我不想修改源代码。在 2.x 中是否有正确的方法来执行此操作？

NSString *url = [NSString stringWithFormat:@"%@my/images/%@",BaseUrl,[o objectForKey:@"ID"]];
[cell.imageView setImageWithURL:[NSURL URLWithString:url]
               placeholderImage:[UIImage imageNamed:@"placeholder"]
 ];

这似乎不再有效:

[AFImageRequestOperation addAcceptableContentTypes:[NSSet setWithObject:@"image/jpeg"]]

更新:

我可以使用以下代码查看错误:

   NSURLRequest *urlRequest = [NSURLRequest requestWithURL: [NSURL URLWithString: url]];

__weak UITableViewCell *weakCell = cell;
[cell.imageView setImageWithURLRequest:urlRequest
                      placeholderImage:[UIImage imageNamed:@"placeholder"]
                        success: ^(NSURLRequest *request, NSHTTPURLResponse *response, UIImage *image) {

                            __strong UITableViewCell *strongCell = weakCell;

                            strongCell.imageView.image = image;

                            [tableView reloadRowsAtIndexPaths: @[indexPath]
                                             withRowAnimation: UITableViewRowAnimationNone];
                            NSLog(@"Your image request succeeded!");
                        } failure: ^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error) {
                            NSLog(@"Your image request failed...");

                            NSLog(@"Error: %@", error);
                            NSLog(@"Error: %@", response);
                        }

 ];

这里是错误:

Error: Error Domain=AFNetworkingErrorDomain Code=-1016 "Request failed: unacceptable content-type: image/pjpeg"

Answer 1

你可以自己设置imageResponseSerializer在 UIImageView 实例上:

AFImageResponseSerializer *serializer = [[AFImageResponseSerializer alloc] init];
serializer.acceptableContentTypes = [serializer.acceptableContentTypes setByAddingObject:@"image/pjpeg"];
cell.imageView.imageResponseSerializer = serializer;

NSString *url = [NSString stringWithFormat:@"%@my/images/%@",BaseUrl,[o objectForKey:@"ID"]];
[cell.imageView setImageWithURL:[NSURL URLWithString:url]
               placeholderImage:[UIImage imageNamed:@"placeholder"]
];