ChatApp

A real-time Android chat application built with Kotlin and Firebase. This app features a modern UI and real-time synchronization for a seamless communication experience.

🚀 Features

• User Authentication: Secure Sign-up and Sign-in using Firebase Authentication.
• Real-time Messaging: Instant message delivery and updates using Firebase Firestore snapshots.
• Presence Tracking: Real-time "Online" status and "Last seen" timestamps for all users.
• Typing Indicators: Live "User is typing..." feedback displayed in the chat toolbar.
• Read Receipts: Visual status indicators for messages:
  • 🕒 Pending
  • ✓ Sent
  • ✓✓ Read (Green)
• Multimedia Support: Send text messages and images.
• User Profiles:
  • View detailed user profiles including their live status.
  • Update your own profile picture with a preview and save/discard validation.
• Message Management: Long-press on your own messages to "Unsend" (delete) them for everyone.
• Modern & Responsive UI:
  • Built with Material Design 3 and View Binding.
  • Edge-to-Edge support with intelligent keyboard (IME) inset handling.
  • Circular image views for all user avatars.
  • Smooth slide animations between Auth screens.

🛠️ Tech Stack

• Language: Kotlin
• Backend: Firebase (Firestore, Authentication)
• Image Handling: Glide for efficient loading and caching.
• UI Components:
  • Material Design 3
  • CircularImageView
  • ConstraintLayout & RecyclerView
• Image Optimization: Intelligent Bitmap scaling and compression to Base64 for Firestore-friendly storage.

📸 Screenshots

(Add your screenshots here to showcase the UI)

⚙️ Setup Instructions

1. Clone the repository:

   git clone https://github.com/yourusername/Chatapp.git

2. Firebase Configuration:
   • Create a new project in the Firebase Console.
   • Add an Android app with the package name com.example.chatapp.
   • Download the google-services.json file and place it in the app/ directory.
   • Enable Email/Password authentication in the Firebase Auth tab.
   • Create a Cloud Firestore database.
3. Build & Run:
   • Open the project in Android Studio.
   • Sync project with Gradle files.
   • Run the app on an emulator or a physical device.

📄 License

This project is licensed under the MIT License.