junjizhi

import 'package:flutter/material.dart';

class CartBloc with ChangeNotifier {
  Map<int, int> _cart = {};

  Map<int, int> get cart => _cart;

  void addToCart(index) {
    if (_cart.containsKey(index)) {
      _cart[index] += 1;

junjizhi

// https://github.com/junjizhi/flutter-shopping-cart
import 'cart_bloc.dart';
import 'package:provider/provider.dart';

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return ChangeNotifierProvider<CartBloc>(
        builder: (context) => CartBloc(),
        child: MaterialApp(

junjizhi

# Returns all db files sorted by modified time. Usually the last one is your sqlite db file. 
gfind /Users/<username>/Library/Developer/CoreSimulator/Devices/ -name "*.db" -printf "%T+\t%p\n" | sort

junjizhi

#!/usr/bin/env bash
set -euxo pipefail

# Usage:
# cd /path/to/images/directory
# bash resize.bash

shopt -s extglob
for filename in [^resize]*.?(jpg|jpeg|png); do
    newFile="resized-$filename"