UIView subview doesn't change orientation

Question

I have a view controller which manages a view.

I'm adding the my view controller subclass as a subview of the window swapping out another view.

I'm running landscape mode on an iPad.

The view apparently doesn't know that its in landscape mode. Its frame is confused.

Is there something I can/should do to tell it that its in landscape, and/or that the orientation has changed. How does this normally happen. Why isn't it happening?

I used to have my view controller within a UITabBarController and it worked fine there.

Answer 1

Override:

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
    return YES;
}

Answer 2

Your ViewController is not getting rotation events because you have not presented the viewController but have added the viewController's view in the view hierarchy.

Your Tab bar controller previously used to take the responsibility to forward the rotation events to the view controller which it manages, that was how it used to work.

I would though suggest that swapping the view out of window is a bad idea. Instead you should have a main viewController which accepts the rotation events and then swap the view within this viewController based on the current orientation. Consider re-desiging before you code further.