Flutter层启动分析
Flutter启动流程初探
https://cloud.tencent.com/developer/article/1402617
Flutter源码分析系列（一）：runApp方法究竟做了什么
https://www.jianshu.com/p/a9364f778bf8
Flutter运行机制-从启动到显示
https://book.flutterchina.club/chapter14/flutter_app_startup.html
Java层启动分析
Flutter启动流程源码分析
https://juejin.cn/post/6844903812948295687
Flutter安卓Java层初始化源码分析
https://www.jianshu.com/p/d342da0b5430
