我发现这个guide收到一个HTTP Body,其中包含一个带有AFNetworking 2的JSON格式错误消息。该指南是在Objective-C中,我正在尽我所能将其转换为Swift。
这是我试图转换为Swift的代码:
- (id)responseObjectForResponse:(NSURLResponse *)response
data:(NSData *)data
error:(NSError *__autoreleasing *)error {
if (![self validateResponse:(NSHTTPURLResponse *)response data:data error:error]) {
if (*error != nil) {
NSMutableDictionary *userInfo = [(*error).userInfo mutableCopy];
NSError *jsonError;
// parse to json
id json = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&jsonError];
// store the value in userInfo if JSON has no error
if (jsonError == nil) userInfo[JSONResponseSerializerWithDataKey] = json;
NSError *newError = [NSError errorWithDomain:(*error).domain code:(*error).code userInfo:userInfo];
(*error) = newError;
}
return (nil);
}
return ([super responseObjectForResponse:response data:data error:error]);
}
更具体的是,这部分存在问题:
NSMutableDictionary *userInfo = [(*error).userInfo mutableCopy];
这是我目前的代码:
class JSONResponseSerializerWithData: AFJSONResponseSerializer {
let JSONResponseSerializerWithDataKey: NSString = "JSONResponseSerializerWithDataKey"
override func responseObjectForResponse(response: NSURLResponse!,
data: NSData!,
error: NSErrorPointer) -> AnyObject? {
if(!self.validateResponse(response as NSHTTPURLResponse, data: data, error: error)) {
if(error != nil) {
// The question.....
var jsonError: NSError
// parse to json
// Missing some returns with AnyObejct...
}
return nil
}
}
}
如何将此行转换为Swift? 我对Swift / Objective-C语言很新,所以可能有一个简单的解决方案,但我还没有找到它。
答案 0 :(得分:3)
我认为这应该可以解决问题:
var userInfo = error.userInfo
答案 1 :(得分:1)
我找到了描述如何在AFNetworking 2中解析错误消息的相同指南,这是我在Swift中的实现:
override func responseObjectForResponse(response: NSURLResponse!, data: NSData!, error: NSErrorPointer) -> AnyObject! {
if !self.validateResponse(response as! NSHTTPURLResponse, data: data, error: error) {
if error != nil {
var userInfo = error.memory!.userInfo!
var jsonError:NSError?
let json: AnyObject? = NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.AllowFragments, error: &jsonError)
userInfo[JSONResponseSerializerWithDataKey] = json;
error.memory = NSError(domain: error.memory!.domain, code: error.memory!.code, userInfo: userInfo)
}
return nil
}
return super.responseObjectForResponse(response, data: data, error: error)
}
希望这会对某人有所帮助。