Rotate view below modal view

Question

I have an UIViewController(called MainViewController) which presents modally a semi-transparent view (HelpOverlayViewController):

HelpOverlayViewController *helpOverlayViewController = [[HelpOverlayViewController alloc] init];
self.modalPresentationStyle = UIModalPresentationCurrentContext;
helpOverlayViewController.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self presentViewController:helpOverlayViewController animated:YES completion:nil];

If the user rotates the device while the HelpOverlayViewController is shown it only rotates HelpOverlayViewController and not the MainViewController i.e. the parent controller. This is a problem since HelpOverlayViewController is semi-transparent and MainViewController is visible below it.

Both controllers have the method

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return YES;
}

They both rotate fine independently.

Is there some way I can force the underlaying view controller to rotate when the modal view does?

CSmith CSmith · Accepted Answer · 2012-08-13T17:50:26

I do know that issues like this will likely be largely resolved with iOS 6 as it has a different model for handling rotations.

However, that doesn't help you now. You might be best off just making your HelpOverlay a UIView and not a UIViewController. You can add this semi-transparent view onto the top of your MainViewController (or any other). You can still create an animation (like a fade-in) when adding this subview to your view hierarchy. With this model, you'll no longer have any issues with rotations.

Rotate view below modal view

1 Answers