定义路由

        // 在Scaffold中定义路由,如下        routes: <String, WidgetBuilder>{           // less 路由名称 ,StatelessGroupPage() 要跳转的实例page          'less': (BuildContext context) => StatelessGroupPage(),          'full': (BuildContext context) => StateFullGroupPage(),        }

路由跳转

       // 根据路由名称跳转 routerName:'less' 'full'       Navigator.pushNamed(context, routerName);

导航跳转

       // 导航直接跳转 page实例: StatelessGroupPage() StateFullGroupPage()       Navigator.push(context, MaterialPageRoute(builder:(context)=>page))