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    <p><strong>Autorotation</strong> has changed in iOS 6. In iOS 6, the <code>shouldAutorotateToInterfaceOrientation:</code> method of UIViewController is deprecated. In its place, you should use the <code>supportedInterfaceOrientations:</code> and <code>shouldAutorotate</code> methods:</p> <pre><code>- (BOOL)shouldAutorotate { return YES; } - (NSUInteger)supportedInterfaceOrientations { return UIInterfaceOrientationMaskAllButUpsideDown; } </code></pre> <p><strong>Modal ViewControllers</strong> no longer get rotation calls in iOS 6: The <code>willRotateToInterfaceOrientation:duration:, willAnimateRotationToInterfaceOrientation:duration:</code>, and <code>didRotateFromInterfaceOrientation:</code> methods are no longer called on any view controller that makes a full-screen presentation over itself—for example those that are called with: <code>presentViewController:animated:completion:</code>.</p> <p><a href="https://stackoverflow.com/questions/12554204/ios-6-rotation-issue-no-rotation-from-presented-modal-view-controller/12555205#12555205">This answer will further explain the rotation changes in iOS 6</a></p> <hr> <p>[EDIT] Completely different way is to register for rotation events. The advantage is that all objects can register for this, not only <code>UIViewController</code>. This is usually done when the view loads and stopped when the view disappears (put in dealloc here). The method in the selector is called when orientation changes (here it is <code>orientationChanged:</code>):</p> <pre><code>- (void)viewDidLoad { [super viewDidLoad]; // Start generating device rotations and register for them [[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(orientationChanged:) name:UIDeviceOrientationDidChangeNotification object:nil]; } - (void)dealloc { // Deregister and stop generating device rotations [[NSNotificationCenter defaultCenter] removeObserver:self]; [[UIDevice currentDevice] endGeneratingDeviceOrientationNotifications]; [super dealloc]; } </code></pre>
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    1. COThat's interesting. It partly answers my question. So how do I solve my problem now? I notice in the other answer you say "You can let the view controller that presents your modal view controller inform it of rotation." Could you elaborate, please? In my app, it's the root viewController that has failed to rotate - how can the child viewController inform the parent? I did try `[self.parent shouldAutorotate];` and it didn't work.
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      1. USVinod Vishwanath
    2. COI have added autorotation to my answer because that is the problem you also have as mentioned in the linked answer. You may also solve your problem by registering for rotation change events.
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    3. COThanks, I'll try this.
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