iOS-only parameters that specify the anchor element location and arrow direction of the popover when selecting images from an iPad's library or album.
Direction the arrow on the popover should point. Defined in Camera.PopoverArrowDirection Matches iOS UIPopoverArrowDirection constants. ARROW_UP : 1, ARROW_DOWN : 2, ARROW_LEFT : 4, ARROW_RIGHT : 8, ARROW_ANY : 15