上代码
//flutter 登录后跳转到根路由 Navigator.of(context).pushAndRemoveUntil( new MaterialPageRoute(builder: (context) => "根目录类名" ), (route) => route == null);
flutter 跳转至根路由
原文：https://www.cnblogs.com/tianmiaogongzuoshi/p/11436399.html
