[Flutter] StatefulWidget에서 Navigator.pushNamed 쓰기

StatelessWidget에서 잘 쓰던 pushNamed가 StatefulWidget에서 작동하지 않는다면

BuildContext가 다르기 때문이다.

보통 예제에서 StatelessWidget 안에 StatefulWidget을 불러와 쓰기에 StatefulWiget을 호출할 때 context를 넘겨주면 Navigator.pushNamed가 정상 작동했다.

class Products extends StatefulWidget {
  final BuildContext ctx;
  const Products(this.ctx, {super.key});

  @override
  State<StatefulWidget> createState() {
    return _Products(ctx);
  }
}

class _Products extends State<Products> {
  final BuildContext ctx;
  _Products(this.ctx);
  
  ...
  Navigator.pushNaemd(ctx, "/d");
  
}