QuickNotes - Voice to Text Notes Android App

QuickNotes is a feature-rich Android application designed to streamline note-taking through seamless multi-modal interaction. Whether you prefer typing or speaking, QuickNotes ensures your ideas are captured instantly and organized efficiently.

🚀 Features

• Multi-Modal Note Taking: Create notes by either typing or using voice commands with real-time Speech-to-Text conversion.
• Audio Playback: Listen to your saved notes using the built-in Text-to-Speech (TTS) engine.
• AI Chat Companion: Integrated Google Gemini AI for smart assistance, note summarization, and query handling.
• Priority Categorization: Organize your thoughts with color-coded priority levels (Low, Medium, High, Info).
• Secure Authentication: Personalized user accounts with secure Login and Signup functionality.
• Intelligent Search: Quickly find specific notes using the dynamic search bar.
• Modern UI: A clean, responsive design utilizing Material Design components and a Staggered Grid Layout.
• Offline Persistence: All notes are stored locally using the Room database, ensuring access even without an internet connection.

🛠️ Tech Stack

• Platform: Android
• Language: Java
• AI Engine: Google Gemini API (Generative AI SDK)
• Database: Room Persistence Library (SQLite)
• Networking: Retrofit & OkHttp
• Architecture: MVVM (Model-ViewModel-Repository)
• UI Components: Material Design 3, RecyclerView (Staggered Layout)
• Core APIs:
  • SpeechRecognizer for Voice-to-Text
  • TextToSpeech for Text-to-Audio playback

🔑 Configuration

To use the AI features, you need to provide your own Google Gemini API Key:

1. Create a local.properties file in the root directory (if it doesn't exist).
2. Add your API key:

   GEMINI_API_KEY=your_api_key_here

🏗️ Architecture Overview

The app follows the MVVM (Model-View-ViewModel) architectural pattern to ensure code maintainability, testability, and scalability:

• View: Activities (MainActivity, LoginActivity, etc.) handle UI rendering and user interactions.
• ViewModel: Manages UI-related data and communication with the Repository, surviving configuration changes.
• Repository: Acts as a mediator between the Room Database and ViewModels.
• Model: Data entities representing Note, User, and ChatMessage.

📂 Project Structure

app/src/main/java/com/example/text_to_voice_notes/
├── AppDatabase.java        # Room database configuration
├── Note.java               # Note entity
├── NoteDao.java            # Note database operations
├── NoteViewModel.java      # State management for notes
├── MainActivity.java       # Primary notes dashboard
├── ChatActivity.java       # AI Chat interface
├── Login/SignupActivity    # User authentication
└── NoteAdapter.java        # UI logic for the notes list

⚙️ Installation

1. Clone the repository:

   git clone https://github.com/harinandanmv/quicknotes-app.git

2. Open in Android Studio:
   • File -> Open -> Select the project directory.
3. Sync Project with Gradle Files:
   • Wait for dependencies to download and indexing to complete.
4. Run the App:
   • Connect an Android device or use an emulator.
   • Click the 'Run' (Green Play) button.

📝 Usage

• Add a Note: Tap the '+' button to type a note or the 'Microphone' button to record one via voice.
• Categorize: Long-press a note or use the color picker during creation to set priority.
• Listen: Tap the 'Play' icon on any note to hear it read aloud.
• Search: Use the search bar at the top to filter notes by keyword.
• AI Chat: Tap the chat icon to interact with the integrated AI assistant.

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Developed by Harinandan MV