AakashPandey

//   .......

Expanded(
  child: StateBuilder(
    models: [allHeroesList],
      builder: (context, _) {
        return ListView.separated(
          padding: EdgeInsets.symmetric(horizontal: 10),
            itemCount: allHeroesList.allHeroes.length,
 

AakashPandey

floatingActionButton: FloatingActionButton(
  child: Icon(Icons.save),
    onPressed: () {
      if (_inp.text != "" && widget.hero == null) {
        
        allHeroesList.addHero(_inp.text);
        
        Navigator.of(context).pop();
      
      } else if (_inp.text != "") {

AakashPandey

import 'package:flutter/material.dart';
import './config/routes.dart';
import './config/themes.dart';

import './model/herodata.dart';

final HeroList allHeroesList = HeroList();

void main() => runApp(MyApp());

AakashPandey

import 'package:states_rebuilder/states_rebuilder.dart';

class HeroList extends StatesRebuilder {
  List<HeroModel> allHeroes = [];
  int count = 6;

  HeroList() {
    this.allHeroes.add(HeroModel(1, "Narco"));
    this.allHeroes.add(HeroModel(2, "Bombasto"));
    this.allHeroes.add(HeroModel(3, "Celeritas"));