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POController, View, Delegation - how to design properly
 

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  1. POController, View, Delegation - how to design properly
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    <p>Searched other questions but still no answer ... Need some advise. I am porting my code from another platform to iOS. I have an MVC backbone in C++ : CData for model. CController for controller. </p> <ul> <li>CController creates an instance of CData</li> <li>CController creates an instance of CView</li> <li>CController inherits from CNotifications abstract</li> <li>CController passes "this" to constructor of CView</li> <li>CView expects CNotifications* in the constructor and this is how the CView can call the controller back on some important events without actually be aware of the CController itself</li> </ul> <p>On Windows CView would simply access GDI to draw whatever was needed. </p> <p>Now I am porting all this to iOS. CData and CController are completely platform independent so all clear. I was going to just re-implement the CView over iOS. And this is where the problem is.</p> <p>At the start I wanted my ViewController of ios ( the owner of the xib ) just to inherit from CView and implement all CController needs. But then I noticed that there is no multiple inheritance in Obj-C and the ViewController already inherits from UIViewController.</p> <p>So it seems I need to implement CView in such a way that it has a pointer to ViewController( the owner of the xib ).</p> <p>And the question is : how to nicely pass to CView a pointer to ViewController ?</p> <p>I planned the ApplicationDelegate to create the CController which would create the CData and the the CView. I dont want CController to receive a pointer to ViewController and then pass this pointer further to CView - I want CController stay portable...</p> <p>There are all sorts of things coming into head but I was hoping to get here a widely-acceptable approach</p> <p>Thanks in advance</p>
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    1. USLouis Shraga
    1. USLouis Shraga
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    1. COSince `CView` is one of your own classes, can you not base it on `UIView` instead of `NSObject`?
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      1. USdasblinkenlight
    2. COUIViewController and UIView are two different things in iOS, they entract, but UIViewController doesn't inherit from UIView. You may want to take time to get a better understanding of how these work in iOS paradigm, before rushing into porting your C++ codebase
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      1. POController, View, Delegation - how to design properly
      1. USChris Chen
    3. CO@dasblinkenlight - CView is my C++ class and it does not inherit from anything. Could you elaborate please ?
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      1. POController, View, Delegation - how to design properly
      1. USLouis Shraga
 

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