iOS6: supportedInterfaceOrientations not working (is invoked but the interface still rotates)

Question

In my app I have multiple views, some views need to support both portrait and landscape, while other views need to support portrait only. Thus, in the project summary, I ha

Answer 1

The best way for iOS6 specifically is noted in "iOS6 By Tutorials" by the Ray Wenderlich team - http://www.raywenderlich.com/ and is better than subclassing UINavigationController for most cases.

I'm using iOS6 with a storyboard that includes a UINavigationController set as the initial view controller.

//AppDelegate.m - this method is not available pre-iOS6 unfortunately

- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window{
NSUInteger orientations = UIInterfaceOrientationMaskAllButUpsideDown;

if(self.window.rootViewController){
    UIViewController *presentedViewController = [[(UINavigationController *)self.window.rootViewController viewControllers] lastObject];
    orientations = [presentedViewController supportedInterfaceOrientations];
}

return orientations;
}

//MyViewController.m - return whatever orientations you want to support for each UIViewController

- (NSUInteger)supportedInterfaceOrientations{
    return UIInterfaceOrientationMaskPortrait;
}

Answer 2

One thing I've found is if you have an old application that is still doing

[window addSubView:viewcontroller.view];  //This is bad in so may ways but I see it all the time...

You will need to update that to:

[window setRootViewController:viewcontroller]; //since iOS 4

Once you do this the orientation should begin to work again.

Answer 3

In my case I have UINavigationController and my view controller inside. I had to subclass UINavigationController and, in order to support only Portrait, add this method:

- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskPortraitUpsideDown;
}

So in the UINavigationController subclass I need to check which orientation is supported by the current topViewController.

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