I can't understand rotation mechanism in iOS6

Question

My app has view controllers subclassing shouldautorotateToInterfaceOrientation. And in it, I decides each view\'s rotation. This works correctly. But in iOS6, t

Answer 1

When you use UINavigationController or UITabbarViewController - application always does what they say in their shouldAutorotate, supportedInterfaceOrientations methods.

You can add a category for them to redirect these methods to the controller they currently display. Like this:

 @implementation UINavigationController (Rotation_IOS6)
-(BOOL)shouldAutorotate
{
    return [[self.viewControllers lastObject] shouldAutorotate];
}

-(NSUInteger)supportedInterfaceOrientations
{
    return [[self.viewControllers lastObject] supportedInterfaceOrientations];
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return [[self.viewControllers lastObject] preferredInterfaceOrientationForPresentation];
}
@end

Similar for UITabbarViewController.