Design patterns implemented in Java

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

FASTJSON 2.0.x has been released, faster and more secure, recommend you upgrade.

🔥下拉刷新、上拉加载、二级刷新、淘宝二楼、RefreshLayout、OverScroll，Android智能下拉刷新框架，支持越界回弹、越界拖动，具有极强的扩展性，集成了几十种炫酷的Header和 Footer。

一款面向泛前端产品研发全生命周期的效率平台。

Arduino IDE 1.x

Zuul is a gateway service that provides dynamic routing, monitoring, resiliency, security, and more.

Luban(鲁班)—Image compression with efficiency very close to WeChat Moments/可能是最接近微信朋友圈的图片压缩算法

业内为数不多致力于极致体验的超强全自研跨平台(windows/linux/android/iOS)流媒体内核，通过模块化自由组合，支持实时RTMP推流、RTSP推流、RTMP播放器、RTSP播放器、录像、多路流媒体转发、音视频导播、动态视频合成、音频混音、直播互动、内置轻量级RTSP服务等，比快更快，业界真正靠谱的超低延迟直播SDK(延迟低至100~200ms)。

Android开源弹幕引擎·烈焰弹幕使 ～

Reactive Programming for Android

A cross-language remote procedure call(RPC) framework for rapid development of high performance distributed services.

Code samples for YouTube APIs, including the YouTube Data API, YouTube Analytics API, and YouTube Live Streaming API. The repo contains language-specific directories that contain the samples.

Leetcode solutions

🌱 一款现代化的脚手架项目

Easy Machine Learning is a general-purpose dataflow-based system for easing the process of applying machine learning algorithms to real world tasks.

Open source library for content based image retrieval / visual information retrieval.

an App for some picture

an Android app kind like Facerig(but simpler)

Dingtalk for jenkins

Ytk-learn is a distributed machine learning library which implements most of popular machine learning algorithms(GBDT, GBRT, Mixture Logistic Regression, Gradient Boosting Soft Tree, Factorization …

Raspberry Pi