why iPhone 5 doesn't rotate to upsideDown

Question

i added the new methods to my code like described at apples iOS 6 Documentations but on the iPhone 5 the App doesn\'t rotate to upside down. Only the to landscape Ways.

Answer 1

Thanks to Cliff Ribaudo really help full your answer for UITabbarController based project but in my case i am only using UINavigationController so i have modified your answer for UINavigationController categeory.

@interface UINavigationController (RotationAll)
-(NSUInteger)supportedInterfaceOrientations;
@end   


@implementation UINavigationController (RotationAll)
  -(NSUInteger)supportedInterfaceOrientations {
    return UIInterfaceOrientationMaskAll;
  }
@end