效果图 引入依赖 flutter_seekbar: git: https://github.com/LiuC520/flutter_seekbar.git 全量demo代码 https://github.com/LiuC520/flutter_seekbar/blob/master/example/lib/main.dart 简化demo效果 简化demo代码 import 'package:flutter/material.dart'; import 'package:flu