Chat Application

This is a simple chat application that allows users to register, login, and chat with their friends or family in different rooms. The application uses Firebase for authentication and real-time database, Room for local data storage, LiveData for observing data changes, and ViewModel for managing UI-related data.

Screenshots

Features

• User Registration and Login
• Create and Join Chat Rooms
• Real-time Messaging
• Local Data Storage with Room
• Data Observation with LiveData
• UI State Management with ViewModel

Technologies Used

• Firebase Authentication
• Firebase Realtime Database
• Room Persistence Library
• LiveData
• ViewModel

Getting Started

Prerequisites

• Android Studio
• A Firebase project with Realtime Database and Authentication set up

Installation

1. Clone the repository:

   https://github.com/ahmedNaser7/Chat.git

2. Open the project in Android Studio.

3. Add your google-services.json file to the app directory.

4. Sync the project with Gradle files.

Configuration

1. Set up Firebase Authentication:

   • Enable Email/Password authentication in the Firebase console.

2. Set up Firebase Realtime Database:

   • Add the required database rules in the Firebase console to allow read and write access.

Usage

1. Register: Create a new account using an email and password.
2. Login: Access the application using the registered credentials.
3. Create Room: Create a new chat room to start a conversation.
4. Join Room: Join an existing chat room using the room ID.
5. Chat: Send and receive messages in real-time.

Architecture

The application follows the MVVM (Model-View-ViewModel) architecture pattern for a clean separation of concerns and easy testability.

• Model: Contains the data classes and the repository for data handling.
• View: Includes the UI components and observes the data from the ViewModel.
• ViewModel: Acts as a bridge between the Model and the View, holding the UI data and handling logic.