blocks in swift error

Question

I am trying to convert my objectiveC application into swift and i am able to do it most of the things but here is some confusion ...

My ObjectiveC code is

-(void)getResponseFromURL:(NSString *)strURL 
  withParams:(NSMutableDictionary *)dictParams  
  success:(void (^)(AFHTTPRequestOperation *operation, id responseObject, bool isSuccess))blockSuccess  
  failure:(void (^)(AFHTTPRequestOperation *operation, NSError *error))blockFailure  
  showLoader:(BOOL)isShowDefaultLoader  
  showAnimated:(BOOL)isShowLoaderAnimated hideLoader:(BOOL)isHideDefaultLoader
  { //some code here }

My Swift code

func getResponseFromURL(strURL: String, withParams dictParams:Dictionary,  
Success:(operation:AFHTTPRequestOperation, responseobject:AnyObject, isSucces:Bool)->void, 
Failure:(operation:AFHTTPRequestOperation, error:NSError)->void,
showLoader isShowDefaultLoader:Bool,
showAnimated isShowLoaderAnimated:Bool, hideLoader isHideDefaultLoader:Bool){
    // Some code here
}

but it gives me some error
enter image description here

I think i missed some tricks...but i don't know what was that...
So how to get rid of this error?

score 3 · Accepted Answer · edited May 23 '17 at 12:14

3

In Swift, use Void, not void
Dictionary in Swift is Generic, you need specify it as Dictionary<AnyObject, AnyObject> or use NSDictionary directly. You can convert NSDictionary to Swift Dictionary following this answer

Update:

Thanks to Aviel Gross, use [AnyObject: AnyObject] instead of Dictionary<AnyObject, AnyObject>

As code of WenchenHuang shows, () is the same with Void in Swift, both represent empty tuple.

edited May 23 '17 at 12:14

Community

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1

answered May 06 '15 at 06:51

Elliot Li

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hmm...nice explaination – Bhavin Bhadani May 06 '15 at 06:52
`Dictionary` in new Swift syntax is `[AnyObject:AnyObject]` – Aviel Gross May 06 '15 at 06:53
Ok...thanks +1 for you answer and great explanation...and @WenchenHuang is also right in this case – Bhavin Bhadani May 06 '15 at 06:57
`if let dictionary = dictParams {} else { // do what you want } ` or `if dictParams != nil { // do what you want }` – Elliot Li May 06 '15 at 07:07
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/77068/discussion-between-bhavin-and-boyi-li). – Bhavin Bhadani May 06 '15 at 08:03

Luca Angeletti · Answer 2 · 2015-05-08T08:17:55.283

1

In Swift it's Void. The "V" must be uppercase.

edited May 08 '15 at 08:17

answered May 06 '15 at 06:49

Luca Angeletti

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yes you are right and what about that dictionary error – Bhavin Bhadani May 06 '15 at 06:50
I'll check it later on my Mac. – Luca Angeletti May 06 '15 at 06:51

score 1 · Answer 3 · answered May 06 '15 at 06:50

1

  func getResponseFromURL(strURL: String, withParams dictParams:NSDictionary,
        Success:(operation: AFHTTPRequestOperation, responseobject:AnyObject, isSucces:Bool)->(),
        Failure:(operation: AFHTTPRequestOperation, error:NSError)->(),
        showLoader isShowDefaultLoader:Bool,
        showAnimated isShowLoaderAnimated:Bool, hideLoader isHideDefaultLoader:Bool){
            // Some code here
    }

answered May 06 '15 at 06:50

Leo

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why not void and why nsdictionary? – Bhavin Bhadani May 06 '15 at 06:51
Dictionary is Generic, you can use Void,just because I like `()` – Leo May 06 '15 at 06:53
so () and Void gives same impact in swift – Bhavin Bhadani May 06 '15 at 06:55
Yes,if you use block,it is fine. – Leo May 06 '15 at 06:55

blocks in swift error

3 Answers3