Google core libraries for Java

RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

Dex to Java decompiler

An image loading and caching library for Android focused on smooth scrolling

ZXing ("Zebra Crossing") barcode scanning library for Java, Android

Telegram for Android source

Bind Android views and callbacks to fields and methods.

a fast, scalable, multi-language and extensible build system

Event bus for Android and Java that simplifies communication between Activities, Fragments, Threads, Services, etc. Less code, better quality.

This project is deprecated and stale. The latest ExoPlayer code is available in https://github.com/androidx/media

RxJava bindings for Android

A fast dependency injector for Android and Java.

Powerful and flexible library for loading, caching and displaying images on Android.

Guice (pronounced 'juice') is a lightweight dependency injection framework for Java 11 and above, brought to you by Google.

The Most Powerful Swipe Layout!

Redis Java client

Realm is a mobile database: a replacement for SQLite & ORMs

An Android library that allows you to easily create applications with slide-in menus. You may use it in your Android apps provided that you cite this project and include the license in your app. Th…

Java JWT: JSON Web Token for Java and Android

Server supporting the Signal Private Messenger applications on Android, Desktop, and iOS

Paging indicator widgets compatible with the ViewPager from the Android Support Library and ActionBarSherlock.

Views and Drawable for displaying animated GIFs on Android

Android library to observe scroll events on scrollable views.

This library provides a simple way to add a draggable sliding up panel (popularized by Google Music and Google Maps) to your Android application. Brought to you by Umano.

Android filters based on OpenGL (idea from GPUImage for iOS)

Custom fonts in Android the easy way...

Epoxy is an Android library for building complex screens in a RecyclerView

A fast build system that encourages the creation of small, reusable modules over a variety of platforms and languages.

Android view for displaying PDFs rendered with PdfiumAndroid

Java interface to OpenCV, FFmpeg, and more