Flutter开发桌面应用，自定义标题栏
预览图如下
This project is a starting point for a Flutter application.
A few resources to get you started if this is your first Flutter project:
For help getting started with Flutter development, view the online documentation, which offers tutorials, samples, guidance on mobile development, and a full API reference.
实现了窗口的最大化，最小化，关闭，更多菜单功能
主要使用了window_manager插件 https://pub.flutter-io.cn/packages/window_manager
项目参考了[flutter-netease-music] https://github.com/boyan01/flutter-netease-music项目 感谢作者boyan01的开源贡献
我已把[flutter-netease-music] https://github.com/boyan01/flutter-netease-music项目适配了flutter的3.0.3版本并推送到了GitLab https://gitlab.com/codetown/flutter-music-player.git