Flashdim

Modern flashlight app with dim functionality on Android 13+

Mobile App DevelopmentKotlinApache-2.0

Abstract

Flashdim is an open-source Mobile App Development project. Modern flashlight app with dim functionality on Android 13+. Join the FlashDim Matrix room to talk with the community about the app or to ask me (the dev) anything: https://matrix.to/#/#flashdim:matrix.org. It is built using Kotlin, Android. Key capabilities include: dimming your flashlight level by level; shortcut buttons for different brightness levels; SOS flash button. The complete source code is publicly available on GitHub under the Apache License 2.0, making it a useful reference for students building a Mobile App Development mini project or final-year project.

1. Introduction

Join the FlashDim Matrix room to talk with the community about the app or to ask me (the dev) anything: https://matrix.to/#/#flashdim:matrix.org

Starting with Android 13, it's possible to control multiple brightness levels of the flashlight. To be able to use this new feature I've developed this app.

Google Play and the Google Play logo are trademarks of Google LLC. GITHUB®, the GITHUB® logo design, the INVERTOCAT logo design, OCTOCAT®, and the OCTOCAT® logo design are trademarks of GitHub, Inc.

2. Objective

Modern flashlight app with dim functionality on Android 13+

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

3. Key Features / Modules

  • dimming your flashlight level by level
  • shortcut buttons for different brightness levels
  • SOS flash button
  • morse code flash mode
  • ⏲ Interval / BPM mode
  • quick settings tile for fast access
  • press both volume buttons for easy flashlight toggle
  • private, no ads, no internet connection
  • modern Material You (M3) design elements
  • app colors adapt to device's system colors

4. Technology Stack

KotlinAndroid

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/cyb3rko/flashdim.git
cd flashdim

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 cyb3rko 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.

View Source on GitHubDownload ZIP

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