PlayPay

PlayPay is a mobile payment application built with Flutter and Firebase that allows users to make (Mock) payments using QR codes.

Prerequisites

Before getting started, make sure you have the following installed:

• Flutter SDK (latest stable version)
• Android SDK (via Android Studio)
• Git for cloning the repository
• A Google account for Firebase access

Setup and Build Instructions

Follow these steps to set up and run the PlayPay application:

1. Clone the Repository

2. Firebase Setup

1. Go to the Firebase Console
2. Click "Create a project" or select an existing project
3. Give your project a name (e.g., "PlayPay")
4. Follow the on-screen instructions to complete project creation

3. Add Android App to Firebase

1. In the Firebase console, click on the Android icon to add an Android app
2. Enter the package name: com.example.playpay (or your custom package name if changed)
3. Enter app nickname: "PlayPay"
4. (Optional) Enter SHA-1 if you need Google Sign-In
5. Click "Register app"

4. Download Configuration File

1. Download the google-services.json file provided by Firebase
2. Place this file in the android/app directory of your Flutter project

5. Configure Your App

The project should already be configured with the necessary Firebase dependencies, but verify:

• The Google Services plugin is applied in android/app/build.gradle.kts
• Firebase dependencies are in pubspec.yaml

6. Connect Android Device

1. Enable USB debugging on your Android device
2. Connect it to your development machine
3. Verify connection with flutter devices

7. Run the Application

8. Enable Authentication in Firebase

1. In the Firebase console, go to "Authentication"
2. Click "Get started"
3. Select "Email/Password" from the sign-in methods
4. Enable the "Email/Password" option and save

9. Create a User

1. In the Firebase Authentication section, click "Add user"
2. Enter an email and password for testing
3. Click "Add user"

10. Login and Use PlayPay

1. Open the app on your device
2. Login with the credentials you created
3. Start using the PlayPay features

Features

• User authentication with email and password
• QR code generation for payments
• QR code scanning for processing payments
• Profile management
• Secure PIN setup for transactions

Troubleshooting

• If you encounter build errors, make sure google-services.json is in the correct location
• For "Failed to load FirebaseOptions" errors, verify your Firebase configuration
• Make sure all dependencies are up-to-date with flutter pub upgrade