Expenso

Abstract

1. Introduction

A Simple Expense Tracker App built to demonstrate the use of modern android architecture component with MVVM Architecture . Made with love by Spikeysanju

2. Objective

📊 A Minimal Expense Tracker App built to demonstrate the use of modern android architecture component with MVVM Architecture

This project demonstrates how Kotlin, Android can be applied to a real-world Mobile App Development problem.

4. Technology Stack

• Kotlin - First class and official programming language for Android development.
• Coroutines - For asynchronous and more..
• Android Architecture Components - Collection of libraries that help you design robust, testable, and maintainable apps.
• Stateflow - StateFlow is a state-holder observable flow that emits the current and new state updates to its collectors.
• Flow - A flow is an asynchronous version of a Sequence, a type of collection whose values are lazily produced.
• ViewModel - Stores UI-related data that isn't destroyed on UI changes.
• Room - SQLite object mapping library.
• Jetpack Navigation - Navigation refers to the interactions that allow users to navigate across, into, and back out from the different pieces of content within your app

5. System Requirements

General requirements for this technology stack — check the README for exact versions.

• Android Studio (latest)
• JDK 17
• Android device or emulator
• Git (to clone the repository)

6. Installation & Setup

git clone https://github.com/Spikeysanju/Expenso.git
cd Expenso

Full setup instructions are in the project README.

7. Future Enhancements

Suggested extensions you can add to make this your own project.

• Add push notifications with Firebase Cloud Messaging
• Add offline support with local caching
• Publish an internal test build on the Play Store

8. Viva / Review Questions

Common questions examiners ask for projects in this domain.

1. Which framework is used and why (native vs cross-platform)?
2. How is app state managed across screens?
3. Where is the data stored — locally, Firebase or a REST backend?
4. How are permissions (camera, location, storage) handled?
5. How would you publish this app to the Play Store / App Store?

9. Source Code & License

This project is developed by Spikeysanju and published on GitHub under the Apache License 2.0. Please follow the license terms and credit the original author when you use or modify this code.