UINavigationController is the wrong size in cocos2d

I'm able to add a view from UIView control to cocos2d. I then resize it using the frame property and it fills up the screen. Otherwise it looks like it is in portrait view and I can see the cocos2d view behind it and the bottom part is cut off.

So great... everything worked... but then.

I create a UINavigationController. I try the same thing all over with the uinavigationcontroller.view.frame, but no matter what happens it is stuck in the portrait mode.

How can i resize the view and the UINavig开发者_运维知识库ationController stuff so it fills the screen in landscape?

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please handle view.frame property like following:

        CGRect hrect = viewController.view.frame;
        hrect.size.height = 1500;
        viewController.view.frame = hrect;