我记得，我也遇到了同样的挑战。
我创建了自己的wave滑块：
import 'dart:math';import 'package:flutter/material.dart';List<int> bars = [];const barWidth = 5.0;double screenWidth;int numberOfBars;void main() { runApp(MyApp());}class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( home: Home(), ); }}void randomNumberGenerator() { Random r = Random(); for (var i = 0; i < numberOfBars; i++) { bars.add(r.nextInt(40) + 10); }}class Home extends StatelessWidget { @override Widget build(BuildContext context) { if (bars.isEmpty) { screenWidth = MediaQuery.of(context).size.width; numberOfBars = screenWidth ~/ barWidth; randomNumberGenerator(); } return Container(child: WaveSlider()); }}class WaveSlider extends StatefulWidget { @override State<StatefulWidget> createState() => WaveSliderState();}class WaveSliderState extends State<WaveSlider> { double bar2Position = 180.0; _onTapDown(TapDownDetails details) { var x = details.globalPosition.dx; print("tap down " + x.toString()); setState(() { bar2Position = x; }); } @override Widget build(BuildContext context) { int barItem = 0; return Scaffold( body: Center( child: Stack( alignment: Alignment.centerLeft, children: <Widget>[ GestureDetector( onTapDown: (TapDownDetails details) => _onTapDown(details), onHorizontalDragUpdate: (DragUpdateDetails details) { setState(() { bar2Position = details.globalPosition.dx; }); }, child: Container( child: Row( crossAxisAlignment: CrossAxisAlignment.end, mainAxisAlignment: MainAxisAlignment.start, children: bars.map((int height) { Color color = barItem + 1 < bar2Position / barWidth ? Colors.deepPurple : Colors.blueGrey; barItem++; return Container(color: color,height: height.toDouble(),width: 5.0, ); }).toList(), ), ), ), ], ), ), ); }}
