willRotateToInterfaceOrientation not being called

Question

I\'m returning YES in my view controller\'s shouldAutorotateToInterfaceOrientation function, and I can see using breakpoints that YES

Answer 1

One thing to look for is I found if I had UIPopoverController called in [UINavigationController viewDidAppear], then willRotateToInterfaceOrientation and didRotateFromInterfaceOrientation are not called. It looks like UIPopoverController being modal blocks the rotation method calls.

Answer 2

Yes me too. Ok, it won't get called in a sub-viewcontroller - have to pass it down. Can deal with that. And the notification idea works well except that you only get "did..." not "will..." (afaik) and anyway it's a messy solution to a problem which shouldn't be there.

My mistake was to call [super loadView] in my loadView. Not supposed to do that. When I removed [super loadView] and alloc'd the view myself willRotateToInterfaceOrientation started working.

What's really weird is that the [super loadView] was in the sub-viewcontroller and the event wasn't even reaching the top one...

Answer 3

Apple documentation

At launch time, apps should always set up their interface in a portrait orientation. After the application:didFinishLaunchingWithOptions: method returns, the app uses the view controller rotation mechanism described above to rotate the views to the appropriate orientation prior to showing the window.

So if you are using a TabBarViewController be carefull to set up the selected view in the application:didFinishLaunchingWithOptions: method.

Answer 4

Is this views viewController a subview of some other root view controller thats not a navigation controller? if so then the call does not propagate to the subviews controller, so that might be why your view isnt rotating.

Answer 5

If you are not receiving callbacks on willAutoRotateToInterfaceOrientation in any view controller, add the view controller as your root view controller's child view controller.

For Eg; say self.viewController is your root view controller and childViewController is the view controller in which you want to get auto-rotation callbacks, add the following line of code;

[self.viewController addChildViewController:childViewController];

Actually, adding as the child view controller to any view controller which gets rotation call backs will work too.

Hope it helps.

Answer 6

I have a similar problem and saw Daniel's answer however I can't find any confirmation of this in the developer documentation. Not that I don't believe the answer but I don't really understand why the orientation call does not propagate.

Someone gave me a trick that works using something like this:

[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(detectOrientation) name:@"UIDeviceOrientationDidChangeNotification" object:nil];