Prevent autorotate for one view controller?

Question

My app can autorotate but I need one of the views to only show in portrait mode and don't know how to achieve this.

I tried this (among other things) but the view in question still rotates:

//  ViewController.m

-(BOOL)shouldAutorotate
{            
    return NO;
}

- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}

Can someone kindly point out what I'm doing wrong? Thanks.

-edit-

It's for iOS 6.1

Answer 1

When a UINavigationController is involved, create a category on the UINavigationController and override supportedInterfaceOrientations.

#import "UINavigationController+Orientation.h"

@implementation UINavigationController (Orientation)

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

- (BOOL)shouldAutorotate {
    return YES;
}

@end  

Now, iOS containers (such as UINavigationController) do not consult their children to determine whether they should autorotate.

How to create a category
1. Add a new file (Objective c- category under cocoa touch)
2. Category : Orientation on UINavigationController
3. Add the above code to UINavigationController+Orientation.m