Since iOS updated some orientation relative methods are not working and app orientation support is broken. The following two scenarios are the most of the user have issues in iOS 6 fixing these is really easy with the simple code changes as shown below.

1.  Deprecated:

 

– (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation

{

             return UIInterfaceOrientationIsLandscape(interfaceOrientation);

}

This method is deprecated in iOS 6, instead of this we need to use these two methods:

-(NSUInteger) supportedInterfaceOrientations

{

         return UIInterfaceOrientationMaskLandscape;

}

 

-(BOOL)shouldAutorotate

{

        return YES;

}

1. Deprecated:

        [self.window addSubview: mainController.view];