iphone - Problem pushViewController from Landscape to Portrait

Question

I am trying to go from a viewcontroller that supports landscape (while in landscape mode), to one that explicitly doesn't (and shouldn't) support landscape. I'm doing this as follows:

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {
    return (toInterfaceOrientation == UIInterfaceOrientationPortrait);
}

Ideally I want the new viewController that i'm pushing onto the stack to start off initially in portrait, not landscape. Strangely even with this method implemented, it starts off in Landscape.

My only guess is that Apple doesn't want a user transitioning from landscape to portrait (despite allowing us to go from landscape, back to a previous controller that is in portrait).

Any insights and/or help would be much appreciated.

Answer 1

I found a way to force portrait. It's a bit a hack, but here it is. In the -(void)viewDidLoad of the viewController that you want to force portrait for do the following:

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

This basically forces portrait, by presenting a controller (which only supports portrait by default).