iphone - Handling autorotation for one view controller in iOS7

Question

I've read many answers on SO but I can't seem to get autorotation working on iOS7.

I only need one view controller to rotate, so I don't want to set rotation settings in my Info.plist.

As I understand Apple's documentation, a single view controller can override global rotations settings (from Info.plist) by simply overriding two methods. Info.plist is set to only allow Portrait, and my view controller implements the following methods:

- (NSUInteger)supportedInterfaceOrientations
{
    NSLog(@"%s", __PRETTY_FUNCTION__);
    return UIInterfaceOrientationMaskAllButUpsideDown;
}

- (BOOL)shouldAutorotate
{
    NSLog(@"%s", __PRETTY_FUNCTION__);
    return true;
}

I'm seeing those NSLog statements upon rotation but nothing rotates.

If I do configure Info.plist with the proper rotation settings, my view will rotate, but not if I try and rely on my view controller.

Not sure if it matters, but the view I'm trying to rotate is from a .xib using auto layout.

Also, my ViewController is being presented modally and is contained in a navigation controller. I've tried just presenting the view controller by itself and that doesn't work. I've also tried adding a category to UINavigationController to get it's autorotation directions from it's topViewController.

Answer 1

In my case, I had a new iOS7 app with about 30 view controllers created already. I needed auto rotation on just a single modal view controller. I didn't want to have to update the preexisting view controllers.

I selected the orientations I wanted in the plist:

Then I added a category to my app delegate on UIViewController:

@implementation UIViewController (rotate)
   -(BOOL)shouldAutorotate {
      return NO;
   }
@end

Then in the single modal view controller I WANTED to rotate I added this method:

-(BOOL)shouldAutorotate {
      return YES;
}

I also discovered, that if my view controller wasn't a modal VC I would need to add category methods on UINavigationController instead, for all VCs that were subsequent to the root view controller, as part of the navigation stack of view controllers - similar to this: https://stackoverflow.com/a/20283331/396429