aaronksaunders

void main() => runApp(
      ChangeNotifierProvider(
        child: TabBarDemo(),
        builder: (BuildContext context) {
          return CartModel();
        },
      ),
    );

aaronksaunders

class TabBarDemo extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    var count = Provider.of(context).items.length;

aaronksaunders

  RaisedButton(
      child: Text("Add Item"),
      onPressed: () async {
        final form = _formKey.currentState;
        form.save();
        if (form.validate()) {
          Provider.of(context)
              .add(new Item(_name, num.parse(_price)));
        } else {
          print('validate failed');

aaronksaunders

import 'dart:collection';
import 'package:flutter/material.dart';

class Item {
  String name;
  num price;

  Item(this.name, this.price);
}

aaronksaunders

  RaisedButton(
      child: Text("Add Item"),
      onPressed: () async {
        final form = _formKey.currentState;
        form.save();
        if (form.validate()) {
          Provider.of(context)
              .add(new Item(_name, num.parse(_price)));
        } else {
          print('validate failed');

aaronksaunders

class TabBarDemo extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    var count = Provider.of(context).items.length;

aaronksaunders

import 'dart:collection';
import 'package:flutter/material.dart';

class Item {
  String name;
  num price;

  Item(this.name, this.price);
}

aaronksaunders

void main() => runApp(
      ChangeNotifierProvider(
        child: TabBarDemo(),
        builder: (BuildContext context) {
          return CartModel();
        },
      ),
    );

aaronksaunders

// FILE: App.tsx

 } />

aaronksaunders

// FILE: TabRoot.tsx

interface IAppProps {}

const TabRoot: React.FC = props => {
  return (