viewportMaxScrollExtent method

double viewportMaxScrollExtent(
  1. RenderViewportBase<ContainerParentDataMixin<RenderSliver>> viewport
)
inherited

Getting maxScrollExtent of viewport

Implementation

double viewportMaxScrollExtent(RenderViewportBase viewport) {
  final offset = viewport.offset;
  if (offset is! ScrollPosition) {
    return 0;
  }
  return offset.maxScrollExtent;
}