eh_downloader_flutter/lib/components/scroll_parent.dart

import 'package:flutter/material.dart';

class ScrollParent extends StatelessWidget {
  final ScrollController controller;
  final Widget child;

  const ScrollParent({Key? key, required this.controller, required this.child})
      : super(key: key);

  @override
  Widget build(BuildContext context) {
    return NotificationListener<OverscrollNotification>(
      onNotification: (OverscrollNotification value) {
        if (value.overscroll < 0 && controller.offset + value.overscroll <= 0) {
          if (controller.offset != 0) controller.jumpTo(0);
          return true;
        }
        if (controller.offset + value.overscroll >=
            controller.position.maxScrollExtent) {
          if (controller.offset != controller.position.maxScrollExtent)
            controller.jumpTo(controller.position.maxScrollExtent);
          return true;
        }
        controller.jumpTo(controller.offset + value.overscroll);
        return true;
      },
      child: child,
    );
  }
}