问题
Appareantly there is no AFImageRequestOperation, but only AFImageResponseSerializer and frankly I don't get it or maybe I'm just looking too long through AFNetworking site... Downloading images with previous AFNetworking was like a charm. I'd hate to go back to older AFnetworking, since I did almost all stuff via the new version... Anyone?
回答1:
SO you want something like this for 2.0.
AFHTTPRequestOperation *requestOperation = [[AFHTTPRequestOperation alloc] initWithRequest:urlRequest];
requestOperation.responseSerializer = [AFImageResponseSerializer serializer];
[requestOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(@"Response: %@", responseObject);
_imageView.image = responseObject;
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"Image error: %@", error);
}];
[requestOperation start];
As mentioned by Adam you can also do something like the below if you are just wanting to throw it into an imageView
[myImageView setImageWithURL:[NSURL URLWithString:@"http://sitewithimage.com/images/myimage.png"]];
回答2:
for old version, there is no responseSerializer, you can also
AFHTTPRequestOperation *requestOperation = [[AFHTTPRequestOperation alloc] initWithRequest:urlRequest];
//requestOperation.responseSerializer = [AFImageResponseSerializer serializer];
[requestOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(@"Response: %@", responseObject);
_imageView.image = [UIImage imageWithData:responseObject];
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"Image error: %@", error);
}];
[requestOperation start];
回答3:
For people using AFNetworking in Swift, above solution can be written as below
let requestOperation : AFHTTPRequestOperation = AFHTTPRequestOperation(request: urlRequest)
requestOperation.responseSerializer = AFImageResponseSerializer()
requestOperation.setCompletionBlockWithSuccess({ (requestOperation, responseObject) in
print(responseObject)
_imageView.image = responseObject as? UIImage
}) { (requestOperation, error) in
print(error)
}
requestOperation.start()
来源：https://stackoverflow.com/questions/19501652/how-to-download-image-with-afnetworking-2-0