jgrandchavin

class ExampleScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return ViewModelProvider<ExampleScreenViewModel>(
      model: ExampleScreenViewModel(context: context),
      builder: (ExampleScreenViewModel model) {
        return Scaffold(
          backgroundColor: Colors.black45,
          body: Column(
            mainAxisAlignment: MainAxisAlignment.center,

jgrandchavin

class ViewModelProvider<T extends BaseViewModel> extends StatelessWidget {
  final BaseViewModel model;
  final Widget Function(T model) builder;

  ViewModelProvider({@required this.builder, @required this.model});

  @override
  Widget build(BuildContext context) {
    return ChangeNotifierProvider<T>(
      create: (BuildContext context2) => model,

jgrandchavin

class ExempleScreenViewModel extends BaseViewModel {
  // Values
  String mainTitle = 'Flutter Provider & ChangeNotifier Starter';
  int resourcesCount;
  int counter = 0;

  SplashScreenViewModel({@required BuildContext context}) : super(context: context) {
    resourcesCount = resourcesProvider.count;
  }
  

jgrandchavin

class BaseViewModel extends ChangeNotifier {
  final BuildContext context;

  AuthenticationProvider authenticationProvider;
  ResourcesProvider resourcesProvider;
  ChatProvider chatProvider;

  BaseViewModel({@required this.context}) {
    authenticationProvider = Provider.of<AuthenticationProvider>(context);
    resourcesProvider = Provider.of<ResourcesProvider>(context);

jgrandchavin

abstract class BaseProvider {
  AuthenticationProvider authenticationProvider;
  
  BaseProvider({@required this.authenticationProvider});

  void dispose() {}
}

jgrandchavin

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    SystemChrome.setPreferredOrientations([
      DeviceOrientation.portraitUp,
    ]);

    return Provider<AuthenticationProvider>(

jgrandchavin

import 'package:bloc_provider/bloc_provider.dart';
import 'package:flare_flutter/flare_actor.dart';
import 'package:flutter/material.dart';
import 'package:flutter_svg/svg.dart';
import 'package:location/location.dart';
import 'package:sensors/sensors.dart';
import 'package:http/http.dart' as http;
import 'dart:convert' as c;
import 'package:rxdart/rxdart.dart';

jgrandchavin

class AQ {
  var city;
  var aqi;
  var cat;
  var reco;
  var color;
  var asset;

  AQ.fJ(j)
      : aqi = j['data']['indexes']['baqi']['aqi'],