GFItemsCarouselSlideEndCallback typedef
GFItemsCarouselSlideEndCallback =
void Function(DragEndDetails details)
When a pointer that was previously in contact with the screen and moving is no longer in contact with the screen.
The velocity at which the pointer was moving when it stopped contacting the screen.
Implementation
typedef GFItemsCarouselSlideEndCallback = void Function(DragEndDetails details);