Open source computer vision and machine learning software library. OpenCV was built to provide a common infrastructure for computer vision applications and to accelerate the use of machine perception in the commercial products.
Design pattern samples implemented in Java.
Font Awesome gives you scalable vector icons that can instantly be customized - size, color, drop shadow, and anything that can be done with the power of CSS.
RxJava is a Java VM implementation of Reactive Extensions: a library for composing asynchronous and event-based programs by using observable sequences.
It extends the observer pattern to support sequences of data/events and adds operators that allow you to compose sequences together declaratively while abstracting away concerns about things like low-level threading, synchronization, thread-safety and concurrent data structures.
Get a full fake REST API with zero coding in less than 30 seconds.
material-design-icons are the official open-source icons featured in the Google Material Design specification.
The Guava project contains several of Google's core libraries that we rely on in our Java-based projects: collections, caching, primitives support, concurrency libraries, common annotations, string processing, I/O, and so forth.
An OCR Engine that was developed at HP Labs between 1985 and 1995... and now at Google.
A simple charting library for Android, supporting line- bar- and piecharts, scaling, dragging and selecting.
Godot is a fully featured game engine. It focuses on having great tools, and a visual oriented workflow that can export to PC, Mobile and Web platforms with no hassle. The editor, language and APIs are feature rich, yet simple to learn, allowing you to become productive in a matter of hours.
100% interoperable with Java™
ZXing ("zebra crossing") is an open-source, multi-format 1D/2D barcode image processing library implemented in Java, with ports to other languages.
Glide is fast and efficient image loading library for Android that wraps image downloading, resizing, memory and disk caching, and bitmap recycling into one simple and easy to use interface. By default, Glide includes an implementation for fetching images over http based on Google's Volley project for fast, parallelized network operations on Android.
Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized. Your data is your data alone and you deserve to choose where it is stored, if it is shared with some third party and how it's transmitted over the Internet.
Every major open-source project has its own style guide: a set of conventions (sometimes arbitrary) about how to write code for that project. It is much easier to understand a large codebase when all the code in it is in a consistent style.
"Style" covers a lot of ground, from "use camelCase for variable names" to "never use global variables" to "never use exceptions." This project holds the style guidelines we use for Google code. If you are modifying a project that originated at Google, you may be pointed to this page to see the style guides that apply to that project.
Lottie is a mobile library for Andorid and iOS that parses Adobe After Effects animations exported as json with Bodymovin and renders them natively on mobile!
ButterKnife is a view "injection" library for Android which uses annotation processing to generate boilerplate code for you.
Android optimized event bus that simplifies communication between Activities, Fragments, Threads, Services, etc. Less code, better quality.
This project is the Android app for the conference. The app supports devices running Android 4.0+, and is optimized for phones and tablets of all shapes and sizes. It also contains an Android Wear integration.
libGDX is a cross-platform Java game development framework based on OpenGL (ES) that works on Windows, Linux, Mac OS X, Android, your WebGL enabled browser and iOS.
This project aims to provide a reusable instrument for asynchronous image loading, caching and displaying.
jadx - Dex to Java decompiler.
Command line and GUI tools for produce Java source code from Android Dex and Apk files.
As the name says, SmartRefreshLayout is a "smart" refresh layout，Because of its "smart", it does not just support all the View as other refresh layouts said, but also support multi-layered nested view structures.
Powerful and flexible