Force controllers to Change their orientation in Either Portrait or Landscape

Question

I have following Controllers, (I have selected all types orientation modes in iPad)

Here is my iPad Storyboard layout

Custom NavigationController >         


        

Answer 1

- (BOOL) shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{
return (interfaceOrientation == UIInterfaceOrientationPortrait);//choose portrait or landscape
}
- (BOOL) shouldAutorotate{
return NO;
}
- (NSUInteger) supportedInterfaceOrientations{
return UIInterfaceOrientationMaskPortrait;//choose portrait or landscape, same as above
}