如何将我的 imageResponseSerializer 从 Alamofire 更新到 3.0 版本？

Question

I have an imageResponseSerializer that I built following this tutorial :http://www.raywenderlich.com/85080/beginning-alamofire-tutorial

I honestly don't really know how it works, so I was wondering if someone could help me update it to something that will work with Alamofire 3.0. Here is my code:

extension Alamofire.Request {

class func imageResponseSerializer() -> GenericResponseSerializer<UIImage> {
    return GenericResponseSerializer { request, response, data in

        guard let validData = data else {
            let failureReason = "Data could not be serialized. Input data was nil."
            let error = Error.errorWithCode(.DataSerializationFailed, failureReason: failureReason)
            return .Failure(data, error)
        }

        if let image = UIImage(data: validData, scale: UIScreen.mainScreen().scale) {
            return Result<UIImage>.Success(image)
        } else {
            return .Failure(data, Error.errorWithCode(.DataSerializationFailed, failureReason: "Unable to create image"))
        }

    }
}

    func responseImage(completionHandler: (NSURLRequest?, NSHTTPURLResponse?, Result<UIImage>) -> Void) -> Self {
        return response(responseSerializer: Request.imageResponseSerializer(), completionHandler: completionHandler)
    }
}

Thanks

Answer 1

Instead of building your own image response serialization, you should switch over to using AlamofireImage . We built it so you wouldn't have to! 😉