Passing a dictionary between two viewcontrollers?

Question

I have an application in which I have a webservice call that returns data as a dictionary. I want to access this dictionary in another view controller for loading the values

Answer 1

I am assuming that the webservice is called because something happened (button clicked, viewDidLoad/viewDidAppear). If this is the case, passing a reference of the UIViewController to the webservice class is a perfect valid option. Keep in mind that for this relationship you should create a protocol, so on your webservice class you have something like this:

id referenceToViewController;

This ViewControllerResponseProtocolwould define a method like this:

-(void)responseFromWebservice:(NSDictionary*)myDictionary;

So when the webservice class has build the NSDictionary you can the above method from the referenceToViewController:

[referenceToViewController responseFromWebservice:myDictionary];

If there isn't any kind of relationship between both, you use could NSNotificationCenter for it.

P.S: The solution of skram is perfectly valid if you already have the NSDictionary from the webservice on the initial UIViewController and now you want to pass it to a new UIViewController. Although I don't think that's what you want.