Design patterns implemented in Java

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.

Termux - a terminal emulator application for Android OS extendible by variety of packages.

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.

Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas

A libre lightweight streaming front-end for Android.

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

Netty project - an event-driven asynchronous network application framework

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

Telegram for Android source

Bind Android views and callbacks to fields and methods.

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

Desktop/Android/HTML5/iOS Java game development framework

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

A tool for reverse engineering Android apk files

JDK main-line development https://openjdk.org/projects/jdk

LSPosed Framework

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

GraalVM compiles applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀

视频播放器（IJKplayer、ExoPlayer、MediaPlayer），HTTPS，16k page size，支持弹幕，外挂字幕，支持滤镜、水印、gif截图，片头广告、中间广告，多个同时播放，支持基本的拖动，声音、亮度调节，支持边播边缓存，支持视频自带rotation的旋转（90,270之类），重力旋转与手动旋转的同步支持，支持列表播放 ，列表全屏动画，视频加载速度，列表小窗口支持拖…

RxJava bindings for Android

IntelliJ IDEA & IntelliJ Platform

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

Tinker is a hot-fix solution library for Android, it supports dex, library and resources update without reinstall apk.

A fast dependency injector for Android and Java.

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