ios 如何使用 AFNetworking 2.0 下载图像？
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How to download image with AFNetworking 2.0?
提问by raistlin
Appareantly there is no AFImageRequestOperation, but only AFImageResponseSerializerand 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?
显然没有AFImageRequestOperation，但AFImageResponseSerializer坦率地说，我不明白，或者我只是在 AFNetworking 网站上看得太久了……使用以前的 AFNetworking 下载图像就像一种魅力。我不想回到旧的 AFnetworking，因为我几乎所有的东西都是通过新版本完成的......有人吗？
回答by Bot
SO you want something like this for 2.0.
所以你想要 2.0 这样的东西。
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
正如亚当所提到的，如果您只想将其放入 imageView，您也可以执行以下操作
[myImageView setImageWithURL:[NSURL URLWithString:@"http://sitewithimage.com/images/myimage.png"]];
回答by lbsweek
for old version, there is no responseSerializer, you can also
对于旧版本，没有 responseSerializer，你也可以
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by Penkey Suresh
For people using AFNetworkingin Swift, above solutioncan be written as below
对于AFNetworking在 Swift 中使用的人，上面的解决方案可以写成如下
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()
