title: How to properly integrate Unity + Vuforia into an existing native iOS Project?
body: <p>We have created a project with Unity 2017.3 and Vuforia 6.0.114 and need to integrate it into a native iOS App with already existing AppDelegate and existing ViewContollers. We still want to launch our own AppDelegate and starting ViewController but on some point later the Unity+Vuforia-Controller shall be entered.</p>
  
  <p>We are familiar with the process of integrating a Unity App into a native iOS App itself and we made everything work fine as long as there is no Vuforia involved.</p>
  
  <p>The problem is that Vuforia itself subclasses Unity's Controller (in VuforiaNativeRendererController.mm) by using the <code>IMPL_APP_CONTROLLER_SUBCLASS(VuforiaNativeRendererController)</code> mechanism.</p>
  
  <p>This is actually the same way we subclass our own iOS native App, thus we have a conflict. We can either start our part and take control of Unity or let Vuforia do it.</p>
  
  <p>The question now is: Is it possible to somehow further subclass Vuforia or something similar? And if so, how could this be achieved?</p>