1. 网络 or 本地

https://www.jianshu.com/p/2d92b4f8a0c6

2. 本地配置

https://blog.csdn.net/hekaiyou/article/details/62889059

3. 自适应字体大小

https://blog.csdn.net/u011272795/article/details/82795477
https://www.codercto.com/a/32698.html

不明白为什么更新这个会卡死，卡死还必须重启。。。
https://pub.dev/packages/flutter_screenutil
https://github.com/OpenFlutter/flutter_screenutil

ScreenUtil.instance = ScreenUtil(width: 375, height: 667, allowFontScaling: false)..init(context);

注意一下这不能放到main的app下，必须在主场景下放置，否则出错，无法获得系统分辨率等信息

调用时使用

ScreenUtil.getInstance().setSp(16)