iOS 6 force an orientation

Question

In iOS5 you could use this snippet to force the orientation:

UIViewController *c = [[UIViewController alloc]init];
[self presentModalViewController:c animated:NO];
[self dismissModalViewControllerAnimated:NO];
[c release];

However this causes an EXC_BAD_ACCESS in iOS6. How can a certain orientation be forced in iOS6?

Answer 1

Just to complete the previous answer, you should do this:

UIViewController *viewController = [[UIViewController alloc] init];
[self presentViewController:viewController animated:NO completion:^{
    [viewController dismissModalViewControllerAnimated:NO];
}];

And iOS 6 is no longer under NDA.

Answer 2

In case anyone still cares about this, here's the iOS6 code snippet (I placed it in my viewDidLoad routine):

UIViewController *viewController    = [[UIViewController alloc] init];
viewController.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
[self presentViewController:viewController animated:NO completion:^{
    [self dismissViewControllerAnimated:NO completion:nil];
}];

Answer 3

At first presentModalViewController and dismissModalViewControllerAnimated are deprecated and probably iOS6 will not use these methods correctly. You should use similar methods with complition block instead.

The second thing is that [self dismissModalViewControllerAnimated:NO]; tries to dismiss self firstly. Is this correct in your case?

And last thing iOS6 is under NDA