Alamofire v4 使用未声明的类型响应

Posted 2023-02-24

【中文标题】Alamofire v4 使用未声明的类型响应

【英文标题】：Alamofire v4 use of undeclared type response

【发布时间】：2016-10-03 13:47:10

【问题描述】：

当我更新到 Alamofire v4 时，我遇到了两个错误。

第一个是使用未声明的类型响应，我从这一行得到：

func responseSavedAdsArray(_ completionHandler: (Response<SavedAdsWrapper, NSError>) ->

第二个错误是 use of unresolved identifier ResponseSerializer 我从这一行得到的：

let responseSerializer = ResponseSerializer<SavedAdsWrapper, NSError>  request, response, data, error in

这是我所有的代码：

extension Alamofire.Request 
    func responseSavedArray(_ completionHandler: (Response<SavedWrapper, NSError>) -> Void) -> Self 
        let responseSerializer = ResponseSerializer<SavedWrapper, NSError>  request, response, data, error in
            guard error == nil else 
                return .Failure(error!)
            
            guard let responseData = data else 
                let failureReason = "Array could not be serialized because input data was nil."
                let userInfo: Dictionary<NSObject, AnyObject> = [NSLocalizedFailureReasonErrorKey: failureReason, Error.UserInfoKeys.StatusCode: response!.statusCode]
                let error = NSError(domain: Error.Domain, code: Error.Code.StatusCodeValidationFailed.rawValue, userInfo: userInfo)
                return .Failure(error)
            

            let JSONResponseSerializer = Request.JSONResponseSerializer(options: .AllowFragments)
            let result = JSONResponseSerializer.serializeResponse(request, response, responseData, error)

            switch result 
            case .Success(let value):
                let json = JSON(value)
                let wrapper = SavedWrapper()

                wrapper.next = json["saveditems"]["next_page_url"].stringValue
                wrapper.previous = json["saveditems"]["prev_page_url"].stringValue
                wrapper.count = json["saveditems"]["total"].intValue

                var allSaved:Array = Array<Saved>()
                print(json)
                let results = json["saveditems"]["data"]
                print(results)
                for jsonAdata in results
                

                    let adsJData = SavedAds(json: jsonAdata.1, id: Int(jsonAdata.0))
                    allSaved.append(adsJData)
                
                wrapper.saveditems = allSaved
                return .Success(wrapper)
            case .Failure(let error):
                return .Failure(error)
            
        

        return response(responseSerializer: responseSerializer,
                        completionHandler: completionHandler)
    

那是什么原因造成的呢？

【参考方案1】：

先改变

func responseSavedAdsArray(_ completionHandler: (Response<SavedAdsWrapper, NSError>) ->

到

func responseSavedAdsArray(_ completionHandler: (DataResponse<SavedAdsWrapper>) ->

已编辑

let responseSerializer = ResponseSerializer<SavedAdsWrapper, NSError>  request, response, data, error in

到

let responseSerializer = DataResponseSerializer<SavedAdsWrapper>  request, response, data, error in

【讨论】：

修复了第一个错误，但我仍然得到：使用未解析的标识符 ResponseSerializer

不也一样吗？试试 DataResponseSerializer :)

我的错！是一个错字:)