《Hello 算法》：动画图解、一键运行的数据结构与算法教程。支持简中、繁中、English、日本語，提供 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 等代码实现

http下载工具，基于http代理，支持多连接分块下载

A Minecraft Launcher which is multi-functional, cross-platform and popular

Lightweight Java and Android library for integration with Ethereum clients

Jitsi is an audio/video and chat communicator that supports protocols such as SIP, XMPP/Jabber, IRC and many other useful features.

Android StackBlur is a library that can perform a blurry effect on a Bitmap based on a gradient or radius, and return the result. The library is based on the code of Mario Klingemann.

BitTorrent library and client with DHT, magnet links, encryption and more

🔥🔥🔥 基础封装视频播放器player，可以在ExoPlayer、MediaPlayer原生MediaPlayer可以自由切换内核；该播放器整体架构：播放器内核(自由切换) + 视频播放器 + 边播边缓存 + 高度定制播放器UI视图层。支持视频简单播放，列表播放，仿抖音滑动播放，自动切换播放，使用案例丰富，拓展性强。

IjkPlayer/MediaPlayer+TextureView，支持列表，完美切换全屏、小窗口的Android视频播放器

Building Open-Ended Embodied Agents with Internet-Scale Knowledge

Use graphviz with pure java

Android上专为视频直播打造的轻量级弹幕库（100多kb）

[DEPRECATED]A simple frame for mobile pay in China, easy to use & expand . 简单易用的第三方可扩展支付框架。

绅士(exhentai)下载器

Android Browser for KanColle 2nd Phase (HTML5)

With this simple API you can simply call GraphViz's dot from your Java programs.

kcanotify for H5

一个图片转换器，可以把任意两张图片转换成一张黑白的png图片，该png图片在白色背景和黑色背景下呈现不同的形态

a toy app