UniHub

UniHub is an AI-powered study assistant application built with Flutter. It combines task management, study planning, and AI assistance into a single campus companion app.

Features

• Authentication: Secure login via Email/Password and Google Sign-In (Firebase Auth).
• AI Chat Assistant: Integration with Gemini AI for educational Q&A. Supports text, images, and uploading PDF documents for context-aware answers.
• Study Planner: Generates personalized weekly study schedules using AI based on user topics and hours.
• Notes Scanner: Uses vision capabilities to scan handwritten notes, transcribe them, and generate summaries, flashcards, and quizzes. Can export results to PDF.
• Smart Reminders: Specialized content-aware reminders system (UI implemented).
• Community Feed: A space for students to share resources and updates (UI implemented).
• Profile Management: User details and convenient account management.

Tech Stack

• Flutter: Dart-based cross-platform framework (Material Design 3).
• Firebase:
  • Auth: User identity management.
  • Firestore: Cloud database for storing user profiles and study data.
• AI & ML: Google Gemini (google_generative_ai) for generative text and vision tasks.
• PDF & File Handling:
  • syncfusion_flutter_pdf: For extracting text from uploaded PDFs.
  • pdf & printing: For generating downloadable study guides.
  • file_picker & image_picker: For local media selection.
• Markdown: flutter_markdown for rendering rich AI responses.

Setup & Configuration

Prerequisites

• Flutter SDK (3.0.0 or higher)
• Firebase Project with Auth and Firestore enabled
• Gemini API Key

Installation

1. Clone the repository and install dependencies:

   flutter pub get

2. Firebase Configuration:

   • Ensure android/app/google-services.json is present.
   • Ensure ios/Runner/GoogleService-Info.plist is present (for iOS).

3. Keystore (Release Builds):

   • Copy android/keystore.properties.example to android/keystore.properties.
   • Fill in your signing key details.

Running the App

This project uses compile-time variables for API keys to improve security. You must provide your Gemini API key when running or building the app.

Debug Mode:

flutter run --dart-define=GEMINI_API_KEY=your_actual_api_key_here

Release Build:

flutter build apk --release --dart-define=GEMINI_API_KEY=your_actual_api_key_here

Note on Security

• API keys are no longer hardcoded in the source.
• Debug logs are stripped in release mode.
• Android backups are disabled to prevent data leakage.