Preferredinterfaceorientationforpresentation Must Return a Supported Interface Orientation

preferredInterfaceOrientationForPresentation must return a supported interface orientation

Your code should look like this:

-(BOOL)shouldAutorotate
{
    return NO;
}

-(NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskLandscape;
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return UIInterfaceOrientationLandscapeRight;
}

Also, make sure in your Info.plist you have set the correct orientations for you app because what you return from supportedInterfaceOrientations is intersected with the Info.plist and if it can't find a common one then you'll get that error.

preferredInterfaceOrientationForPresentation must return a supported interface orientation (iOS 6)

In -supportedInterfaceOrientations, you need to return values from UIInterfaceOrientationMask, not UIInterfaceOrientation. In particular, it looks like you want UIInterfaceOrientationMaskPortrait

Here's what the documentation for -supportedInterfaceOrientations says about the return value:

Return Value

A bit mask specifying which orientations are supported. See “UIInterfaceOrientationMask” for valid bit-mask values. The value returned by this method must not be 0.

iOS6 Preferred Interface Orientation Not Working

It would appear Apple have removed the ability to push a view in a specific orientation. preferredInterfaceOrientationForPresentation does get called, but only when popping back or presenting a view controller. I had to present my landscape view rather than push it, and set shouldAutoRotate = NO.

Refer to: In iOS6, trouble forcing ViewController to certain interfaceOrientation when pushed on stack for more details.

Error when dismissing a MPmovieViewController in landscape to a view in portrait only (UIApplicationInvalidInterfaceOrientation)

I'm answering myself. In fact it was very simple.

Just add to the portrait only view :

-(UIInterfaceOrientation)preferredInterfaceOrientationForPresentation { return UIInterfaceOrientationPortrait; }

Thanks

App crashes on closing modal view controller

You are returning the wrong thing. The value it expects is UIInterfaceOrientationPortrait, but you're returning UIInterfaceOrientationMaskPortrait. Note the Mask part.

Understanding iOS 6 Interface orientation change

About preferredInterfaceOrientationForPresentation

preferredInterfaceOrientationForPresentation is never called because this is not a "presented" view controller. There is no "presentation" involved here.

"Presented" and "presentation" are not some vague terms meaning "appears". These are precise, technical terms meaning that this view controller is brought into play with the call presentViewController:animated:completion:. In other words, this event arrives only if this is what we used to call a "modal" view controller.

Well, your view controller is not a modal view controller; it is not brought into play with presentViewController:animated:completion:. So there is no "presentation" involved, and therefore preferredInterfaceOrientationForPresentation is irrelevant here.

I'm being very explicit about this because I'm thinking that many folks will be confused or misled in the same way you were. So perhaps this note will help them.

Launch into Landscape

In iOS 6, the "Supported Interface Orientations" key in your Info.plist is taken much more seriously than previously. The solution to your overall problem of launching into a desired orientation is:

1. Make sure that "Supported Interface Orientations" in your Info.plist lists all orientations your app will ever be allowed to assume.

2. Make sure that the desired launch orientation is first within the "Supported Interface Orientations".

That's all there is to it. You should not in fact have to put any code into the root view controller to manage the initial orientation.

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