Building a Flutter Food Delivery App

Sep 7, 2024

Flutter Food Delivery App Tutorial

Overview

  • Building a food delivery app using Flutter with backend integration.
  • Features include user authentication, menu browsing, cart management, and order processing.
  • Users can register, log in, add items to the cart, and complete payments.
  • Final output includes a receipt with live updates to the backend database.

Key Features

  • Authentication: Register and log in users.
  • Menu Browsing: Users can view food options, add-ons, and manage cart items.
  • Cart Management: Users can modify the quantity of items, proceed to checkout, and enter payment details.
  • Order Processing: After payment, users are shown a receipt and order status updates.

Structure

  • Pages: Login, Register, Home, Settings, Food Detail, Cart, Checkout, Delivery Progress.
  • Components: Custom widgets for UI elements like buttons, text fields, and drawer items.
  • State Management: Utilizing Provider for state management.

Implementation Steps

Initial Setup

  1. Create a new Flutter project and organize files into folders (Pages, Components, Services).
  2. Set up themes (light and dark mode) and colors.
  3. Install Provider for state management.

Authentication

  • Create login and register pages, including text fields for email and password.
  • Implement logic to switch between login and register pages.
  • Use Firebase for backend authentication:
    • Enable email/password authentication in Firebase Console.
    • Implement authentication methods (sign in, sign up, sign out).

Menu Management

  • Create a model for food items with properties: name, description, image, price, and add-ons.
  • Implement menu display using tab bars for different categories (Burgers, Salads, etc.).
  • Create a food details page where users can select add-ons.
  • Add items to the cart.

Cart Functionality

  • Implement a cart page to display selected items.
  • Allow users to adjust quantities and remove items from the cart.
  • Create a checkout page for payment processing.
  • Integrate with a payment gateway (if needed).

Order Processing

  • Create a delivery progress page that displays order details and a receipt.
  • Use Firestore to save order data, including items and delivery address.

Final Steps

  • Implement the ability to update the delivery address.
  • Ensure that the user can see their order status and receipt.
  • Download full code and assets for the completed app.

Conclusion

  • The tutorial covers a complete food delivery app setup from scratch.
  • Full code available for download for further learning and implementation.