Calling Swift Closure Inside Closure

Question

I have the following code:

  twitterAPI?.verifyCredentialsWithUserSuccessBlock({ (userName, password) -> Void in


            twitterAPI?.getUserTimelin         


        

Answer 1

Ok, by the method names you are using, I'm guessing you are using the STTwitter library. If that's the case, you'll want something like this:

    if let twitterAPI = self.twitterAPI {
        twitterAPI.verifyCredentialsWithSuccessBlock({ (String) -> Void in
            twitterAPI.getUserTimelineWithScreenName("test", successBlock: { (objects: [AnyObject]!) -> Void in
                println("success")
                }, errorBlock: { (error: NSError!) -> Void in
                    println("failure")
            })
            }, errorBlock: { (error: NSError!) -> Void in

        })
    }

Note the let call before using the optional self.twitterAPI variable.