PMChat – Flutter Chat App with Background Calling & AI Features

PMChat is a complete, production-ready chat application built with Flutter & Firebase. It goes far beyond a standard messaging app — packed with AI-powered features, real-time messaging, and WhatsApp-like background incoming calls that work even when the app is completely closed.

Whether you are building a WhatsApp clone, a Telegram alternative, or a powerful team communication platform, PMChat gives you a fully working codebase. The architecture is clean, the code is well-commented, and setting it up for your own brand takes just minutes.

📦 What Is Included?

• ✅ Complete Flutter Source Code (Android & iOS)
• ✅ Firebase Cloud Functions (Node.js) for background notifications & calls
• ✅ Step-by-step HTML Setup Documentation
• ✅ All assets (icons, images, audio files)
• ✅ All API keys removed — ready for your own credentials

⏱️ Save 300+ Hours of Development Time!

Building an app like PMChat from scratch would take a senior Flutter developer over 300 hours. By purchasing PMChat, you get a production-ready codebase instantly.

📱 Live Demo — Try Before You Buy!

👉 Download & Install Demo APK (Android)

• 📞 Background & Killed-State Incoming Calls: Calls ring on the lock screen even when the app is completely closed — just like WhatsApp. Powered by flutter_callkit_incoming and Firebase Cloud Functions (FCM data-only push). Fully working on Android.
• 🔥 Real-Time Messaging: Lightning-fast chat powered by Cloud Firestore — typing indicators, message read receipts (double ticks), and online/offline presence.
• 🎥 Voice & Video Calls (ZegoCloud): High-quality 1-on-1 audio and video calls with a premium in-call UI.
• 🤖 AI Image Generation: Users can generate stunning AI images directly inside the chat with a single text prompt.
• 💡 Smart Replies (Google ML Kit): The app intelligently suggests quick reply options based on received messages.
• 🌐 Live Message Translation (Google ML Kit): Translate any message into another language instantly.
• 🏷️ AI Image Labeling (Google ML Kit): Automatically identifies and labels objects in shared images.
• 🎙️ Voice Messages with Audio Waveform: Record, send, and play voice notes with a beautiful animated waveform.
• 🗣️ Speech-to-Text & Text-to-Speech: Dictate messages with your voice and have messages read aloud.
• 🔔 Push Notifications: Reliable push notifications for messages and calls via OneSignal & Firebase FCM — works in background and killed states.
• 📁 Media & File Sharing: Send and receive images, videos (with compression), PDFs, and documents.
• 👥 Contact Sync: Automatically finds which phone contacts are already using the app.
• 📡 Offline Detection: A smart banner notifies users the moment they lose or regain internet.
• 🌙 Dark & Light Theme: Full dark and light mode support.
• 🔒 Privacy Controls: Users can control who sees their profile photo, status, last seen, and online presence.
• 📰 In-App News Feed: A built-in news reader with an animated globe icon.
• 🎬 Reels / Status Feature: Post short video reels and photo statuses — similar to WhatsApp Status and Instagram Stories.
• 👤 Group Chats: Create and manage group conversations with full admin controls.
• 📦 Clean Architecture: Well-organized folder structure — Services, Screens, Widgets, Models, and Utils, cleanly separated.

• Flutter SDK — Latest stable version.
• IDE: Android Studio or Visual Studio Code.
• Firebase Account (Free) — Authentication, Firestore, Storage, Cloud Functions, FCM.
• Node.js (v18+) — Required to deploy the included Firebase Cloud Functions.
• ZegoCloud Account (Free tier) — Voice & Video calling. Get AppID and AppSign from their console.
• OneSignal Account (Free) — Push notifications. Get App ID and REST API Key.
• Cloudinary Account (Free tier) — Media uploads. Get Cloud Name and Upload Preset.

1. Unzip the downloaded package. You will find a pmchat_source_code folder and a Documentation folder.
2. Open pmchat_source_code in Android Studio or VS Code.
3. In the terminal, run: flutter pub get
4. Configure Firebase: Create a project at Firebase Console. Enable Authentication (Email + Google), Firestore, Storage, and Cloud Functions. Then run:
   dart pub global activate flutterfire_cli
flutterfire configure
5. Deploy Cloud Functions: In the terminal, navigate into the functions folder inside the project and run:
   npm install
firebase deploy --only functions
   (This enables background call notifications on killed/background state.)
6. Configure API Keys: Open lib/utils/app_config.dart and replace the YOUR_..._HERE placeholders with your own credentials:
   • ZegoCloud AppID & AppSign
   • OneSignal App ID & REST API Key
   • Cloudinary Cloud Name & Upload Preset
7. Run: flutter run

📄 A detailed HTML documentation file is included in the Documentation folder with screenshots and guidance for each step.