Hibok/lib/utils/separator_line.dart

import 'package:flutter/material.dart';

class MySeparator extends StatelessWidget {
  final double height;
  final Color color;

  const MySeparator({this.height = 1.6, this.color = Colors.black});

  @override
  Widget build(BuildContext context) {
    return Container(child: RotatedBox(child: LayoutBuilder(
      builder: (BuildContext context, BoxConstraints constraints) {
        final boxWidth = constraints.constrainWidth();
        final dashWidth = height;
        final dashHeight = 1.5;
        final dashCount = (boxWidth / (2 * dashWidth)).floor();
        return Flex(
          children: List.generate(dashCount, (_) {
            return SizedBox(
              width: dashWidth,
              height: dashHeight,
              child: DecoratedBox(
                decoration: BoxDecoration(color: color),
              ),
            );
          }),
          mainAxisAlignment: MainAxisAlignment.spaceBetween,
          direction: Axis.horizontal,
        );
      },
    ),quarterTurns: 1,),height: 26,);
  }
}