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

A powerful 🚀 Android chart view / graph view library, supporting line- bar- pie- radar- bubble- and candlestick charts as well as scaling, panning and animations.

Render After Effects animations natively on Android and iOS, Web, and React Native

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

Bind Android views and callbacks to fields and methods.

Telegram for Android source

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

A Java serialization/deserialization library to convert Java Objects into JSON and back

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

RxJava bindings for Android

A tool for reverse engineering Android apk files

Implementation of ImageView for Android that supports zooming, by various touch gestures.

A fast dependency injector for Android and Java.

An Android library for managing images and the memory they use.

Modular and customizable Material Design UI components for Android

This is a sample app that is part of a series of blog posts I have written about how to architect an android application using Uncle Bob's clean architecture approach.

Android Transition animations explanation with examples.

Very spicy additions to the Java programming language.

The Most Powerful Swipe Layout!

Tools to work with android .dex and java .class files

Fast Android Development. Easy maintainance.

A Java API for generating .java source files.

An asynchronous, callback-based Http client for Android built on top of Apache's HttpClient libraries.

A barebones WebSocket client and server implementation written in 100% Java.

A collection of source code generators for Java.

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.

A collection of samples demonstrating different frameworks and techniques for automated testing

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