How to disable changing of orientations in iOS 5.1.1 after rotation?

Question

I would like to know how to disable Portrait and UpsideDown orientations in my app for iOS 5.1.1. I want my app to use only LandScape orientation (interface was drawn in Interface Build in .xib file) and don't change it in case of rotation.
I need it especially for iOS 5.1.1

Answer 1

A similar question: how do you make an app ONLY support landscape?

This method was used in the answer above:

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 
{
    if (interfaceOrientation==UIInterfaceOrientationLandscapeLeft || interfaceOrientation==UIInterfaceOrientationLandscapeRight)
        return YES;

    return NO;
}

Answer 2

You can set it in project settings. In xCode 5 you open the project navigator, click on your project, click on the general tab, and check the boxes you want.