带有模态对话框的UINavigationController旋转问题

UIWindow
   -- GlobalNavigationController.view (subclasses UIViewController)
      -- UIView
      -- UINavigationController.view

- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation {
    [self.parentViewController didRotateFromInterfaceOrientation:fromInterfaceOrientation];
}

[_navigationController setValue:self forKey:@\"_parentViewController\"];