spineLocation
Location of the spine.
Declaration
static let spineLocation: UIPageViewController.OptionsKeyDiscussion
For possible values, see UIPageViewController.SpineLocation. A spine location is only valid if the transition style is UIPageViewController.TransitionStyle.pageCurl.
If the transition style is UIPageViewController.TransitionStyle.pageCurl, the default value for this property is UIPageViewController.SpineLocation.min; otherwise, the default is UIPageViewController.SpineLocation.none.