🎓 Student Manager Application

A full-stack Student Management System built with Kotlin (Android) and Spring Boot (Backend).
This project allows users to add, view, update, and delete student records easily with a clean UI and modern architecture.

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🧠 Overview

This project demonstrates a complete Android–Spring Boot integration using:

• 🧩 MVVM architecture on Android
• ⚡ RxJava2 for asynchronous data handling
• ✔️ Live Data for change data to live and save with viewModel
• 💿 Room for save data to local
• 🌐 Retrofit for API communication
• 💾 Spring Boot REST API as the backend

💡 You can view the Spring Boot backend project in my other repository:
🔗 Student Manager Backend Repository

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🚀 Features

🖥️ Android App (Frontend)

• Developed with Kotlin
• MVVM architecture pattern
• Retrofit + RxJava2 integration
• SweetAlertDialog for modern alerts
• ViewModel for save smart
• Room local database
• ViewBinding enabled
• CRUD operations: Add, View, Update, Delete students

🗄️ Spring Boot Backend

• RESTful API using Spring Boot
• MVC architecture
• JPA Repository for database operations
• Connected to MySQL / H2
• Endpoints:
  • POST /students → Add new student
  • GET /students → Retrieve all students
  • PUT /students/{id} → Update student
  • DELETE /students/{id} → Delete student

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🛠️ Tech Stack

Android

Component	Technology
Language	Kotlin
Architecture	MVVM
LocalDatabase	Room DB
Networking	Retrofit2 + RxJava2
UI	ViewBinding, SweetAlertDialog
Min SDK	24
Target SDK	36

Backend

Component	Technology
Framework	Spring Boot
Architecture	MVC
Language	Kotlin / Java
Database	MySQL / H2
Architecture	MVC
Build Tool	Gradle / Maven

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📂 Project Structure (Android)

com.example.studentmanagermvcandrxjava/
├── model/
|  |── api/
|  |   └──ApiService   
|  ├──local/
|  |   |──student/
|  |   |   |──Student    
|  |   |   └──StudentDao   
|  |   └──MyDatabase
|  └──MainRepository  
|
├── MainScreen/
|   ├──MainScreenActivity
|   ├──MainScreenViewModel
|   └──StudentAdapter
|
├── AddStudent/
|   ├──AddStudentActivity
|   └──AddStudentViewModel
|
└── utils/
|   ├──Extentions
|   ├──Utils
|   ├──Constance
|   ├──MainViewModelFactory
|   ├──ApiServiceSingleTon
|   └──Constance
|

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⚙️ Installation & Setup

🔧 Backend Setup

You can find the backend setup instructions in the backend repository:
👉 Student Manager Backend Repository

📱 Android Setup

git clone https://github.com/omidiDeveloper/StudentManager
cd StudentManager

In Retrofit config:

const val BASE_URL = "http://YOUR_LOCAL_IP:8080/"

Then build and run on Android Studio.

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📸 Screenshots (Optional)

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🧪 Example API Response

[
  {
    "id": 1,
    "name": "Mohammad Omidi",
    "course": "Android",
    "score": "20"
  },
  {
    "id": 2,
    "name": "test user",
    "course": "Physics",
    "score": "10"
  }
]

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📦 Dependencies (Android)

implementation "com.squareup.retrofit2:retrofit:3.0.0"
implementation "com.squareup.retrofit2:converter-gson:3.0.0"
implementation "com.squareup.retrofit2:adapter-rxjava2:3.0.0"
implementation "io.reactivex.rxjava2:rxandroid:2.1.1"
implementation "io.reactivex.rxjava2:rxjava:2.2.21"
implementation "com.github.f0ris.sweetalert:library:1.6.2"

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👨‍💻 Author

Mohammad Omidi

📍 Android Developer | Kotlin & Spring Boot Enthusiast

-📧 OmidiKotlin@gmail.com
-💻 GitHub: @omidiDeveloper
-🔗 LinkedIn: Mohammad Omidi Zadeh

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📝 License

MIT License © 2025 Mohammad Omidi

⭐ If you like this project, give it a star!