如何在flutter滑块小部件中设置自定义tickMarkShape

import 'package:flutter/material.dart';

class CustomTickMarkShape extends TickMarkShape {
  @override
  Size getPreferredSize({SliderThemeData sliderTheme, bool isEnabled}) {
    // 返回刻度标记的首选大小
    return Size(10.0, 10.0);
  }

  @override
  void paint(
    PaintingContext context,
    Offset center, {
    RenderBox parentBox,
    SliderThemeData sliderTheme,
    Animation<double> enableAnimation,
    Offset thumbCenter,
    bool isEnabled,
    bool isDiscrete,
  }) {
    // 在给定的中心位置绘制刻度标记
    final canvas = context.canvas;
    final paint = Paint()
      ..color = Colors.grey
      ..strokeWidth = 2.0;

    canvas.drawLine(
      Offset(center.dx, center.dy - 5.0),
      Offset(center.dx, center.dy + 5.0),
      paint,
    );
  }
}

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Custom Tick Mark Shape'),
        ),
        body: Center(
          child: Slider(
            min: 0,
            max: 100,
            divisions: 10,
            label: 'Value',
            onChanged: (value) {},
            tickMarkShape: CustomTickMarkShape(),
          ),
        ),
      ),
    );
  }
}