import 'package:flutter/material.dart';

class SlideUpSliverDelegate extends SliverPersistentHeaderDelegate {
  const SlideUpSliverDelegate({
    required this.child,
    required this.maxExtent,
    required this.minExtent,
  });

  final Widget child;
  @override
  final double maxExtent;
  @override
  final double minExtent;

  @override
  Widget build(
    BuildContext context,
    double shrinkOffset,
    bool overlapsContent,
  ) =>
      Transform.translate(
        offset: Offset(0, -shrinkOffset),
        child: child,
      );

  @override
  bool shouldRebuild(
    SliverPersistentHeaderDelegate oldDelegate,
  ) =>
      false;
}