CODEWITHSUNDEEP
iphoneobjective-cxcode
Joel Derfner
Joel Derfner

Reputation: 2207

How to refer to view controller in a class that the view controller imports?

I have two classes in my app, GHHaiku (a subclass of NSObject) and GHViewController, which imports GHHaiku. In GHViewController I've instantiated GHHaiku like so:

@property (nonatomic, strong) GHHaiku *ghhaiku;

So when I need to call a method from GHHaiku in GHViewController, I can do [self.ghhaiku callThisMethod];

However, I can't figure out what to do if GHHaiku needs information from GHViewController. There's a UISegmentedControlin GHViewController, for example, and there's a method in GHHaiku that needs to know which segment of the UISegmentedControl has been chosen. How do I get it this information? I suppose I could create an int property in GHHaiku and then, in GHViewController, assign the value of the UISegmentedControl to that property, but that seems cumbersome and I can't imagine there's not a more elegant way to do it.

So what should I do?

(I suspect that Refer to a main view controller property by another class might answer my question but I'm not quite advanced enough to understand the answer given.)

Upvotes: 0

Views: 33

Answers (1)

FluffulousChimp
FluffulousChimp

Reputation: 9185

This is an architectural issue that could benefit from think about separation of concerns and more clearly breaking things down roughly along MVC (model/view/controller) lines. See this on MVC competency in Cocoa.

Is GHHaiku a model object? If so, then it shouldn't really 'know' about things going on in the view layer.

Upvotes: 1

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