Question

I have overridden my UINavigationController to implement these methods:

-(BOOL)shouldAutorotate
{
    return [[self.viewControllers lastObject] shouldAutorotate];
}
-(NSUInteger)supportedInterfaceOrientations
{
    return [[self.viewControllers lastObject] supportedInterfaceOrientations];
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return [[self.viewControllers lastObject] preferredInterfaceOrientationForPresentation];
}

Now from my first view, I modally present this MSNavigationPaneViewController here which is like a Facebook side sliding tab bar controller.

I need 1 of my view controllers that are displayed within here to be displayed Landscape only while the rest of the app’s views are Portrait only.

So in all my other View Controllers I have added:

-(NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}
- (BOOL)shouldAutorotate
{
    return UIInterfaceOrientationMaskPortrait;
}

and in the one that I want Landscape i’ve added:

- (BOOL)shouldAutorotate
{
    return UIInterfaceOrientationMaskLandscape;
}
-(NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskLandscape;
}

However all my views rotate.

If I change shouldRotate to NO on these other views then they stay in Portrait and the view I want to be Landscape can be rotated, however I can’t get it to rotate itself.
Also, once rotated if I go back to another view that has shouldRotate = NO; then it can’t be rotated back to Portrait.

I’ve been at this for hours now and can’t get it to work.

Thanks

EDIT —–

I have this half working now and have started a new question to get the auto rotation working here

Answer 1

It seems you are confusing what to return in shouldAutorotate. Use the following code as an example.

Since iOS is making a call into your app’s shouldAutorotate in response to an event from the accelerometer, it already knows the new orientation; if your app answers ‘YES`, iOS could then check the current orientation against the list of supported ones, and come up with a decision without your app querying for the current orientation.

// iOS 6

- (BOOL)shouldAutorotate {
    return YES;
}

- (NSUInteger)supportedInterfaceOrientations {
    return UIInterfaceOrientationMaskPortrait;
}

Also, You can let the view controller that presents your modal view controller inform it of rotation. Use: presentViewController:animated:completion: to present the view controller. presentModalViewController:animated: is deprecated if by chance you are using it.

If you add application:supportedInterfaceOrientationsForWindow:, make sure to follow the code guideline below. The documentation states that if you implement supportedInterfaceOrientations on a VC it should override the app delegate. However, people have noticed it makes a difference as to how you add the rootViewController to the main window.

Use:

window.rootViewController = viewController

instead of:

[window addSubview:viewController.view];