🛒 Flutter Provider State Management Example

This repository contains the source code for a Flutter app that demonstrates the use of the Provider package to manage state in a real-world scenario. The app is a simple product catalog where users can add items to a cart and view the cart's total value. The main focus of this project is to show how Provider can be used for efficient state management in Flutter applications.

🔗 Watch the full tutorial on YouTube

🎯 Purpose of This Project

The primary goal of this project is to demonstrate how to use the Provider package in Flutter for managing global app state. It is designed to provide a real-world example rather than a fully functional app, focusing on practical use cases of Provider in Flutter.

🛠️ Features

Display a list of products.
Add products to a cart.
View the total price of items in the cart.
Efficient state management using Provider.

🏗️ Technologies & Packages

Flutter: For building the cross-platform app.
Provider: For state management.
Dart: Programming language for Flutter.

🏃 Getting Started

Prerequisites

Make sure you have Flutter installed on your machine. You can follow the official installation guide.

Installation

Clone this repository:

git clone https://github.com/Amanullahgit/flutter-provider-state-management.git
cd flutter-provider-state-management

Install dependencies:
```
flutter pub get
```
Run the app:
```
flutter run
```

📂 Project Structure

lib/
├── models/
│   ├── cart_item.dart        # Cart item model
│   ├── product.dart          # Product model
├── providers/
│   ├── cart_provider.dart    # Manages cart state
│   ├── product_provider.dart # Manages product list state
├── screens/
│   ├── cart_screen.dart      # Cart screen
│   ├── product_screen.dart   # Product list screen
├── main.dart                 # Entry point, MultiProvider setup

🎬 Video Tutorial Overview

In the video tutorial, we cover:

Introduction to the Provider package and its importance for state management.
Building a product catalog where users can add items to the cart.
Managing cart state and calculating the total price of items.
Demonstrating how Consumer and Provider.of work to optimize widget rebuilding.
Best practices for structuring your Flutter app using Provider.

Watch the full tutorial here.

🛠️ How It Works

ProductProvider: Manages the list of products available in the store (in this example, hardcoded).
CartProvider: Manages the cart's contents and calculates the total price of products. This state is shared globally using ChangeNotifierProvider.
Consumer: Used to rebuild specific parts of the UI when the cart state changes, optimizing performance by preventing unnecessary rebuilds.

🚀 Potential Enhancements

Add product details and images.
Implement user authentication.
Create a checkout flow and integrate a payment gateway (for a full e-commerce app).

🤝 Contributing

Feel free to fork this repository and submit pull requests. If you encounter any issues or have suggestions for improvements, please open an issue.

🔗 Useful Links

Happy coding! 😊