📚 StudyHub – Smart Notes Organizer

🚀 Overview

StudyHub is an Android application designed to help students organize their study materials efficiently. The app follows a Single Activity + Multiple Fragments architecture and allows users to manage subjects, folders, and note images in a structured way.

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🎯 Features

🔹 Splash Screen

• Displays app logo and name
• Simple animation (fade/scale)
• Automatically navigates to Main Screen after 3 seconds

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🔹 Main Screen

• Built using TabLayout + ViewPager2

• Contains three main sections:

  • Subjects
  • Folders
  • Settings

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🔹 Subjects Screen

• Displays subjects using RecyclerView (Grid Layout)

• Each subject includes:

  • Icon
  • Name
  • Number of folders
  • Open Folder button

• Uses:

  • Custom Adapter
  • Subject Model Class

• Clicking a subject navigates to Folders screen

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🔹 Folders Screen

• Displays folders using Custom ListView

• Each folder includes:

  • Icon
  • Name
  • Number of images
  • Open button
  • Delete button

• Uses:

  • Custom Adapter
  • Folder Model Class

• Allows navigation to Notes Images screen

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🔹 Notes Images Screen

• Displays images using RecyclerView (Grid – 2 columns)

• Features:

  • Add Image (opens gallery via implicit intent)
  • Delete Image
  • Share Image (using ACTION_SEND intent)

• Ensures validation before sharing

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🔹 Settings Screen

• Uses SharedPreferences for persistent storage

• Options include:

  • Dark Mode toggle
  • Show Image Preview toggle
  • Clear All Notes
  • Reset App Data

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💾 Persistent Data (SharedPreferences)

The app stores and retrieves data even after restart:

• Subjects list
• Folder structure
• Image paths
• Last opened subject
• App settings (toggles)

Example stored values:

studyhub.darkmode = true
studyhub.showPreview = true
studyhub.lastSubject = DSA
studyhub.folderCount = 3

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🧠 Architecture & Concepts Used

• Single Activity Architecture
• Fragments Navigation
• RecyclerView & Custom Adapters
• Custom ListView
• Model Classes (Subject, Folder, NoteImage)
• SharedPreferences (Persistent Storage)
• Implicit Intents (Image Sharing & Gallery Access)

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🏗️ Tech Stack

• Java / Android SDK
• XML (UI Design)
• Android Jetpack Components

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📌 Minimum Data Requirements

• At least 4 Subjects
• At least 3 Folders per Subject
• Multiple Images per Folder

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✅ Expected Behavior

• Data persists after app restart
• Users can add, delete, and share images
• Smooth navigation between fragments
• Settings are saved and restored correctly

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📈 Future Improvements

• Cloud storage integration
• User authentication
• Search and filter functionality
• Drag & drop folder management

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👨‍💻 Author

Developed as part of an academic assignment to demonstrate Android development concepts and best practices.

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