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

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

RxJava bindings for Android

Cute view animation collection.

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

A collection of source code generators for Java.

Views and Drawable for displaying animated GIFs on Android

Android library to observe scroll events on scrollable views.

Java JsonPath implementation

A sample Android app which showcases advanced usage of Dagger among other open source libraries.

A Model-View-Presenter / Model-View-Intent library for modern Android apps

An enhanced Guava-based event bus with emphasis on Android support.

Android Library to build a UI Card

A solution for streaming H.264, H.263, AMR, AAC using RTP on Android

A Java API to read, write and create MP4 files

Name UI states, navigate between them, remember where you've been.

A surgical debugging tool to uncover the layers under your app.

A simple image cropping library for Android.

A simple library that makes it easy to pair thin views with dedicated controllers, isolated from most of the vagaries of the Activity life cycle.

Process Phoenix facilitates restarting your application process.

High-quality WebSocket client implementation in Java.

linear time regular expression matching in Java

WebSockets (hybi13/RFC) and socket.io client for Android

A packet interceptor for Android built on top of VpnService

Tomahawk's Android Music Player

🚚 Android processing library for managing SharedPreferences persistence efficiently and structurally.

IRCCloud Android App

SimpleRtmp is a simple Java library for implementing RTMP clients, with no external dependencies or NIO

PNGJ : pure Java library for high performance PNG encoding

Compatibility package project for android device difference.