ShivamGoyal1899

class _ShoppingCartTabState extends State<ShoppingCartTab> {
  String name;      // ADD FROM HERE
  String email;
  String location;
  String pin;
  DateTime dateTime = DateTime.now();

  Widget _buildNameField() {
    return CupertinoTextField(
      prefix: const Icon(

ShivamGoyal1899

import 'package:flutter/cupertino.dart';
import 'package:flutter/widgets.dart';
import 'styles.dart';

class SearchBar extends StatelessWidget {
  const SearchBar({
    @required this.controller,
    @required this.focusNode,
  });

ShivamGoyal1899

class _SearchTabState extends State<SearchTab> {
  TextEditingController _controller;
  FocusNode _focusNode;
  String _terms = '';

  @override
  void initState() {
    super.initState();
    _controller = TextEditingController()..addListener(_onTextChanged);
    _focusNode = FocusNode();

ShivamGoyal1899

class _SearchTabState extends State<SearchTab> {
// ...

  @override
  Widget build(BuildContext context) {
    final model = Provider.of<AppStateModel>(context);   
    final results = model.search(_terms);                

    return DecoratedBox(
      decoration: const BoxDecoration(

ShivamGoyal1899

import 'package:flutter/cupertino.dart'
import 'package:provider/provider.dart'
import 'model/app_state_model.dart'
import 'product_row_item.dart'
import 'search_bar.dart'
import 'styles.dart'

ShivamGoyal1899

class ProductListTab extends StatelessWidget {
 @override
 Widget build(BuildContext context) {
   return CupertinoPageScaffold(
     child: Consumer<AppStateModel>(
       builder: (context, child, model) {
         final products = model.getProducts();
         return CustomScrollView(
           semanticChildCount: products.length,
           slivers: <Widget>[

ShivamGoyal1899

class ProductListTab extends StatelessWidget {
 @override
 Widget build(BuildContext context) {
   return CupertinoPageScaffold(
     child: Consumer<AppStateModel>(
       builder: (context, child, model) {
         final products = model.getProducts();  // NEW
         return CustomScrollView(
           semanticChildCount: products.length, // NEW
           slivers: <Widget>[

ShivamGoyal1899

import 'package:flutter/cupertino.dart';
import 'package:provider/provider.dart';

import 'model/app_state_model.dart';
import 'model/product.dart';
import 'styles.dart';

class ProductRowItem extends StatelessWidget {
  const ProductRowItem({
    this.index,

ShivamGoyal1899

import 'package:flutter/cupertino.dart';
import 'package:flutter/services.dart';
import 'package:provider/provider.dart';         // NEW

import 'app.dart';
import 'model/app_state_model.dart';             // NEW

void main() {
 SystemChrome.setPreferredOrientations(
     [DeviceOrientation.portraitUp, DeviceOrientation.portraitDown]);

ShivamGoyal1899

import 'package:flutter/foundation.dart' as foundation;

import 'product.dart';
import 'products_repository.dart';

double _salesTaxRate = 0.06;
double _shippingCostPerItem = 7;

class AppStateModel extends foundation.ChangeNotifier {
  // All the available products.