didFollowDragBack method

  1. @protected
void didFollowDragBack(
  1. Offset followed
)

Implementation

@protected
void didFollowDragBack(Offset followed) {
  if (_dragBackExtent.width == 0) {
    return;
  }
  final value = 1 - followed.dx / _dragBackExtent.width;
  final held = clampDouble(value, _dragEdge, 1 - _dragEdge);
  dragBackController.value = held;
  _dragBackOverdrag.value = math.max(0, value - held);
}