Kotlin Android

Open-source Kotlin projects categorized as Android

Top 23 Kotlin Android Projects

  • GitHub repo architecture-samples

    A collection of samples to discuss and showcase different architectural tools and patterns for Android apps.

    Project mention: Weekly Questions Thread - January 26, 2021 | reddit.com/r/androiddev | 2021-01-26

    The only test file that uses EspressoIdlingResource is TasksActivityTest. However, they uninstall the Hilt module that injects the only file that implements EspressoIdlingResource, DefaultTasksRepository.kt.

  • GitHub repo leakcanary

    A memory leak detection library for Android.

    Project mention: Concerned about the co-installed "Leaks" app | reddit.com/r/Busuu | 2021-02-12

    Thanks. I believe this is the source for it.

  • GitHub repo material-dialogs

    😍 A beautiful, fluid, and extensible dialogs API for Kotlin & Android.

    Project mention: Weekly Questions Thread February 16 2021 | reddit.com/r/androiddev | 2021-02-19

    I use Material Dialog https://github.com/afollestad/material-dialogs which allows you to pass in HTML for the message which uses the color as I defined here.

  • GitHub repo flexbox-layout

    Flexbox for Android

    Project mention: Example where Flow widget in ConstraintLayout shines | reddit.com/r/android_devs | 2021-03-24

    This blog doesn't really mention the actual case Flow tries to solve. It is more akin to FlexBoxLayout where it can wrap the row/column if the child widget's size exceeds the size of the container.

  • GitHub repo MaterialDrawer

    The flexible, easy to use, all in one drawer library for your Android project. Now brand new with material 2 design.

    Project mention: Publishing Android libraries to MavenCentral in 2021 | reddit.com/r/androiddev | 2021-02-08

    I've seen a workaround for this, but I don't think that's any better than what I have now.

  • GitHub repo tachiyomi

    Free and open source manga reader for Android.

    Project mention: Tachiyomi v0.10.10 released | reddit.com/r/animepiracy | 2021-04-12
  • GitHub repo recyclerview-animators

    An Android Animation library which easily add itemanimator to RecyclerView items.

    Project mention: How can I code an app like this? | reddit.com/r/androidapps | 2021-02-23

    Probably uses a library of some sort for animations, the rest would be Recyclerviews and components normal to Android. The whole thing is set in a Fragment/ Tabbed Activity.

  • GitHub repo compose-samples

    Official Jetpack Compose samples.

    Project mention: I'm looking for a good sample codebase to review/learn from that uses MVVM, live data, compose and either dagger or hilt. Any suggestions? | reddit.com/r/androiddev | 2021-04-04

    Google has some compose samples.

  • GitHub repo koin

    Koin - a pragmatic lightweight dependency injection framework for Kotlin

    Project mention: I'm a lost newbie : how to dev state-of-the-art Android apps? | reddit.com/r/androiddev | 2021-02-06

    ah, yes

  • GitHub repo Coil

    Image loading for Android backed by Kotlin Coroutines.

  • GitHub repo Compressor

    An android image compression library.

  • GitHub repo Android-Iconics

    Android-Iconics - Use any icon font, or vector (.svg) as drawable in your application.

  • GitHub repo Fenix

    Firefox for Android

    Project mention: firefox mobile (android) - undo close tab at original position? | reddit.com/r/firefox | 2021-04-12

    This is a known bug since undo was first implemented, but the fix has technical constraints that need to be resolved: https://github.com/mozilla-mobile/fenix/issues/10986

  • GitHub repo android-showcase

    💎 Android application following best practices: Kotlin, Coroutines, JetPack, Clean Architecture, Feature Modules, Tests, MVVM, DI, Static Analysis...

    Project mention: What are the pros of going with Jetpack's Navigation Component? | reddit.com/r/androiddev | 2021-02-14

    That debounce thing is real, no wonder I've seen many sample apps using similar approach to denounce click listener. Do you know why the crash happens?

  • GitHub repo WilliamChart

    Android Library to rapidly develop attractive and insightful charts in android applications. (by diogobernardino)

  • GitHub repo Pokedex

    🗡️ Android Pokedex using Hilt, Motion, Coroutines, Flow, Jetpack (Room, ViewModel, LiveData) based on MVVM architecture.

    Project mention: Advice needed regarding MVVM Pattern | reddit.com/r/androiddev | 2021-03-27

    I would recommend reading the code of the following project. It uses all the modern practices including live data, hilt, paging 3 with mvvm. https://github.com/skydoves/Pokedex

  • GitHub repo compose-jb

    Jetpack Compose for Desktop, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.

    Project mention: remember { mutableStateOf() } – A cheat sheet | reddit.com/r/androiddev | 2021-04-06

    I took a look at it now (for example, search this page: https://github.com/JetBrains/compose-jb/tree/master/tutorials/Window_API) and I understand it better this time. It seems what they're doing is using mutableStateOf before entering their first Composable function. (Window is an entry point that lets you go from the non-Composable world to the Composable world)

  • GitHub repo Fuel

    The easiest HTTP networking library for Kotlin/Android

    Project mention: Customizing your GitHub profile - Scripting | dev.to | 2020-09-13

    But when I started to use it, I faced an issue. In a traditional Maven project, the workaround would be to add the dependency in the available version, and thus override the default one. Yet, it doesn't work with Kotlin Scripting - it's not possible to override versions in the same way.

  • GitHub repo uhabits

    Loop Habit Tracker, a mobile app for creating and maintaining long-term positive habits

    Project mention: Your best app to help to get more discipline and productivity ? (I use habits and Forest) | reddit.com/r/Discipline | 2021-04-06

    Loop Habit Tracker (opensource, free, great UX) - https://github.com/iSoron/uhabits

  • GitHub repo Fotoapparat

    Making Camera for Android more friendly. 📸

    Project mention: Camera X, Camera 2 or something else? | reddit.com/r/androiddev | 2021-03-12

    I don't really know industry standards, but in the past I've used the Fotoapparat library and it has always worked perfectly and with great performances (besides being very easy to use)

  • GitHub repo gradle-play-publisher

    GPP is Android's unofficial release automation Gradle Plugin. It can do anything from building, uploading, and then promoting your App Bundle or APK to publishing app listings and other metadata.

    Project mention: Improving CI/CD pipeline for Android via Fastlane and GitHub Actions | reddit.com/r/androiddev | 2021-02-15

    There you go: https://github.com/Triple-T/gradle-play-publisher

  • GitHub repo FastAdapter

    The bullet proof, fast and easy to use adapter library, which minimizes developing time to a fraction...

  • GitHub repo QKSMS

    The most beautiful SMS messenger for Android

    Project mention: Google and Android | reddit.com/r/foss | 2021-03-01

    comment source

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2021-04-12.


What are some of the best open-source Android projects in Kotlin? This list will help you:

Project Stars
1 architecture-samples 38,535
2 leakcanary 25,939
3 material-dialogs 18,687
4 flexbox-layout 16,631
5 MaterialDrawer 11,335
6 tachiyomi 10,644
7 recyclerview-animators 10,575
8 compose-samples 6,619
9 koin 6,581
10 Coil 5,851
11 Compressor 5,811
12 Android-Iconics 4,782
13 Fenix 4,751
14 android-showcase 4,615
15 WilliamChart 4,612
16 Pokedex 4,188
17 compose-jb 3,956
18 Fuel 3,880
19 uhabits 3,876
20 Fotoapparat 3,654
21 gradle-play-publisher 3,463
22 FastAdapter 3,352
23 QKSMS 3,235