CBSE Question Papers Android App

A comprehensive Android application for CBSE Class 10 students to access past papers, practice questions, and track their learning progress.

🌟 Features

Core Features ✅ Implemented

• 📚 Subjects Library: Six main subjects (Mathematics, Science, Social Science, English, Hindi, Sanskrit)
• 📖 Chapter Organization: Systematic chapter-wise content organization
• 🏗️ Modern Architecture: Built with Room Database, MVVM, and Material Design 3
• 🌙 Dark/Light Theme: Complete theme support with Material You colors
• 📱 Bottom Navigation: Intuitive navigation between major sections

Features in Development 🚧

• 📄 Past Papers Library: 30 years of CBSE question papers (downloadable & viewable in-app)
• 🔍 Smart Search & Filters: Search by keyword, filter by year/chapter/marks
• 🎯 Practice Mode: MCQ/subjective questions with timer and progress tracking
• 💡 Solutions & Hints: Step-by-step solutions for all questions
• 📴 Offline Access: Download papers for offline study
• ⭐ Bookmark & Notes: Save important questions with personal notes
• 📊 Progress Tracker: Detailed analytics with achievements and badges
• 🎲 Daily Challenge: Daily quiz to maintain learning streak

🏗️ Technical Architecture

Technology Stack

• Language: Kotlin
• UI Framework: Android Material Design 3
• Database: Room (SQLite)
• Architecture: MVVM with Repository Pattern
• Async Operations: Coroutines + LiveData
• Navigation: Android Navigation Component
• Build System: Gradle with Kotlin DSL

Project Structure

app/
├── src/main/java/com/cbse/questionpapers/
│   ├── data/
│   │   ├── database/          # Room Database, DAOs, Converters
│   │   ├── model/            # Data models (Subject, Chapter, Question, etc.)
│   │   └── repository/       # Repository pattern implementation
│   ├── ui/
│   │   ├── activities/       # Activities (MainActivity, SubjectActivity, etc.)
│   │   ├── fragments/        # Bottom navigation fragments
│   │   ├── adapters/         # RecyclerView adapters
│   │   └── viewmodels/       # ViewModels with factories
│   └── CBSEApplication.kt    # Application class
└── src/main/res/
    ├── layout/               # XML layouts
    ├── values/               # Strings, colors, themes
    ├── drawable/             # Vector icons and graphics
    └── navigation/           # Navigation graph

Database Schema

• Subjects: Main subject categories
• Chapters: Chapter organization within subjects
• Questions: Question bank with metadata
• PastPapers: Historical question papers
• UserProgress: Individual progress tracking

🎨 UI/UX Design

Design Principles

• Material Design 3: Modern, accessible design system
• Responsive Layout: Adapts to different screen sizes
• Intuitive Navigation: Clear user flow and navigation patterns
• Accessibility: Support for screen readers and accessibility services

Color Scheme

• Primary: Blue (#1976D2) - Trust and education
• Secondary: Teal (#03DAC6) - Growth and progress
• Subject Colors: Unique colors for each subject
• Dark Theme: Full dark mode support

Navigation Structure

Bottom Navigation:
├── 📚 Subjects → Subject List → Chapters → Questions
├── 📄 Past Papers → Year/Subject filtered papers
├── 📊 Progress → Analytics and achievements
└── 🎲 Daily Quiz → Daily challenges

📊 Sample Data

The app includes comprehensive sample data:

• 6 Subjects with full descriptions
• 70+ Chapters across all subjects
• Sample Questions with solutions
• Past Papers from recent years
• Different Question Types: MCQ, Short Answer, Long Answer

Sample Question Types

• Multiple Choice Questions (MCQ)
• Short Answer Questions (2-3 marks)
• Long Answer Questions (5 marks)
• Numerical Problems
• Assertion-Reason Questions

🚀 Getting Started

Prerequisites

• Android Studio Arctic Fox or newer
• Android SDK 24+
• Kotlin 1.9.10+

Installation

1. Clone the repository
2. Open in Android Studio
3. Sync Gradle files
4. Run on device/emulator

Building

# Debug build
./gradlew assembleDebug

# Release build
./gradlew assembleRelease

📋 Development Roadmap

Phase 1: Core Foundation ✅ COMPLETE

• Project setup and architecture
• Database schema and models
• Basic UI with navigation
• Subject and chapter browsing
• Sample data integration

Phase 2: Question System 🚧 IN PROGRESS

• Question viewing and filtering
• Search functionality
• Bookmark system
• Notes feature

Phase 3: Practice Features 📋 PLANNED

• Practice mode with timer
• Quiz engine
• Solution viewer
• Progress tracking

Phase 4: Advanced Features 📋 PLANNED

• Past paper integration
• Offline download system
• Daily challenges
• Achievement system
• Performance analytics

Phase 5: Polish & Launch 📋 PLANNED

• UI/UX refinements
• Performance optimization
• Testing and bug fixes
• Play Store preparation

🔧 Development Guide

Adding New Features

1. Create data models in data/model/
2. Add database entities and DAOs
3. Implement repository methods
4. Create ViewModels
5. Design UI layouts
6. Implement adapters if needed
7. Add navigation routes

Code Style

• Follow Kotlin coding conventions
• Use descriptive variable and function names
• Comment complex logic
• Maintain consistent indentation

📱 App Screenshots

The app features a clean, modern interface with:

• Home Screen: Subject grid with progress indicators
• Subject View: Chapter list with completion status
• Chapter View: Question count and practice options
• Dark Mode: Full theme support

🤝 Contributing

This is an educational project demonstrating modern Android development practices.

Areas for Contribution

• UI/UX improvements
• Additional question content
• Feature implementations
• Performance optimizations
• Test coverage

📄 License

This project is for educational purposes and demonstrates modern Android app architecture.

🙏 Acknowledgments

• Material Design team for design guidelines
• Android team for development tools
• CBSE for educational content structure
• Open source community for libraries and inspiration

---

Built with ❤️ for CBSE students

Empowering education through technology