iOS6: supportedInterfaceOrientations not working (is invoked but the interface still rotates)

Question

In my app I have multiple views, some views need to support both portrait and landscape, while other views need to support portrait only. Thus, in the project summary, I ha

Answer 1

In my case I have UINavigationController and my view controller inside. I had to subclass UINavigationController and, in order to support only Portrait, add this method:

- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskPortraitUpsideDown;
}

So in the UINavigationController subclass I need to check which orientation is supported by the current topViewController.

- (NSUInteger)supportedInterfaceOrientations
{
    return [[self topViewController] supportedInterfaceOrientations];
}