The final variable 'champion' must be initialized. Try initializing the variable-CodePudding

So what I have here is a map with some data, so i want to use some of this tha but when I try to call it on ma DetailScreen this message shows up

class _DetailViewState extends State<DetailView> {
  final Champion champion;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        backgroundColor: Colors.black45,
        body: Stack(children: [
          Container(
              height: 300, child: Image.asset("images/brimstone-valo.jpg")),

also here is my map example

import 'package:valorant_heros/constants/constant.dart';

class Champion {
  late String name;
  late String nickName;
  late Role role;
  late Difficulty difficulty;
  late String image;
  late String description;

  Champion(
      { required this.name,
       required this.nickName,
       required this.role,
       required this.difficulty,
       required this.image,
       required this.description});
}

var agentMap = {
  "brimstone": Champion(
      name: "Brimstone",
      nickName: "aa",
      role: Role.CONTROLADOR,
      difficulty: Difficulty.FACIL,
      image: "images/brimstone-valo.jpg",
      description:
          'Vindo diretamente dos EUA, o arsenal orbital de Brimstone garante que o esquadrão dele esteja sempre em vantagem. Sua capacidade de oferecer utilidade com precisão a distância faz dele um comandante inigualável na linha de frente.'),

CodePudding user response：

You can use constructor to receiving the model. But while it is on state class, you can use late and initialize it before reading.

class _DetailViewStateState extends State<DetailViewState> {
  late final Champion champion;