[Projeto] Desafio final

Não conseguir gravar o Gif porém conseguir implementar a lógica!

import 'package:flutter/material.dart';
import 'package:nosso_primeiro_projeto/data/task_inherited.dart';
import 'package:nosso_primeiro_projeto/screens/form_screen.dart';

class InitialScreen extends StatefulWidget {
  const InitialScreen({Key? key}) : super(key: key);

  @override
  State<InitialScreen> createState() => _InitialScreenState();
}

class _InitialScreenState extends State<InitialScreen> {
  double level = 0;
  double progress = 0;
  void refreshGeneralLevel() {
    setState(() {
      level = 0;
      progress = 0;
      for (var task in TaskInherited.of(context).taskList) {
        level += (task.nivel * task.dificuldade) / 10;
      }
      progress = level / 100;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        leading: Container(),
        title: const Text('Tarefas'),
        flexibleSpace: Row(
          mainAxisAlignment: MainAxisAlignment.spaceBetween,
          children: [
            Padding(
              padding: const EdgeInsets.fromLTRB(50, 70, 8, 8),
              child: SizedBox(
                child: LinearProgressIndicator(
                  color: Colors.white,
                  value: progress,
                ),
                width: 170,
              ),
            ),
            Padding(
              padding: const EdgeInsets.fromLTRB(6, 50, 15, 8),
              child: Text(
                'Nível: $level',
                textAlign: TextAlign.left,
                style: const TextStyle(
                  color: Colors.white,
                  fontSize: 16,
                ),
              ),
            ),
            Padding(
              padding: EdgeInsets.fromLTRB(0, 20, 45, 0),
              child: SizedBox(
                height: 25,
                width: 25,
                child: IconButton(
                    onPressed: () {
                      refreshGeneralLevel();
                    },
                    icon: const Icon(
                      Icons.refresh,
                      size: 30,
                      color: Colors.white,
                    )),
              ),
            ),
          ],
        ),
      ),
      body: ListView(
        children: TaskInherited.of(context).taskList,
        padding: const EdgeInsets.only(top: 8, bottom: 70),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () {
          Navigator.push(
            context,
            MaterialPageRoute(
              builder: (contextNew) => FormScreen(
                taskContext: context,
#               ),
            ),
          );
        },
        child: const Icon(Icons.add),
      ),
    );
  }
}