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Feature‑Rich Open‑Source Android Launcher in Kotlin

Lunar Launcher is a clean, minimalistic yet feature-rich Android launcher whose source code is publicly available under the GPL‑3.0 open-source…

Lunar Launcher is a clean, minimalistic yet feature-rich Android launcher whose source code is publicly available under the GPL‑3.0 open-source license. Implemented entirely in Kotlin, this launcher brings Material Design 3 and Material You aesthetics to your home screen, offering a modern user interface, customizable theming, and polished animations. Because you have full access to the source code, developers can easily inspect, modify, extend, or fork the project to suit custom needs or integrate into larger applications.

The launcher supports dynamic wallpaper color filters, adaptive day/night theming, and responsive double‑tap sleep/lock actions via device admin or root privileges. Frequently referenced source code keywords include “Kotlin,” “Material You,” “OpenWeatherMap API,” “RSS‐feed integration,” “app drawer customization,” “app vault,” and “quick access shortcuts.”

On the home screen, users benefit from built-in battery indicator animations, flexible time and date formats (12/24‑hour), and a weather widget powered by OpenWeatherMap. The TODO list embeds features like adding, editing, copying tasks, timed destruction with reminders, and optional access locking. The app drawer enhances productivity through quick search, gesture-based navigation, customizable grid layouts, app renaming, icon‑pack support, and an optional hidden vault for apps. Developers digging into the source code will appreciate modular design around “app drawer UI”, “quick search logic”, and “feed widget host.”

Under Feeds, Lunar Launcher delivers device stats and feeds sourced from RSS/Atom links you insert via settings—pulling from the open‑source code and demonstrating clean integration of feed parsing libraries. There’s also a widget host to embed third‑party widgets. Quick Access includes up to six favorite apps, contacts, URLs, and system settings for brightness and volume—customizable through intuitive UI tied directly to the source code’s settings handlers.

Permissions handled by the source code include network access for feeds and weather, storage access for wallpapers, system settings adjustment, call placement, and uninstall requests. All of this is managed transparently and ethically in Kotlin, with clearly documented behavior in code.

If you want to explore or contribute to the code, you can fork the official repository, dive into Gradle‑KTS build scripts, and explore code architecture. Thanks to its GPL‑3.0 license, you’re free to use, modify, and distribute the source code, provided you comply with license terms—such as preserving copyright notices and publishing changes under the same license.

  • Author: Md. Rasel Hossain (GitHub: iamrasel)
  • Programming Language: Kotlin
  • License: GPL‑3.0
  • Usage Restrictions: Free to use, modify, redistribute under GPL‑3.0; derivative works must be open-source and distributed under the same license. You must include the original license and attribution in any redistributed or modified versions.
  • Repository Link: https://github.com/iamrasel/lunar-launcher

rysasahrial

A lecturer specializing in mobile application development using the Java programming language. Actively engaged in teaching, research, and mobile technology development.

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