Design patterns implemented in Java

Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.

Free and Open Source, Distributed, RESTful Search Engine

Everything you need to know to get the job.

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

A powerful 🚀 Android chart view / graph view library, supporting line- bar- pie- radar- bubble- and candlestick charts as well as scaling, panning and animations.

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

Apache Flink

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

Bind Android views and callbacks to fields and methods.

Jenkins automation server

Desktop/Android/HTML5/iOS Java game development framework

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

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

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

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

A fast dependency injector for Android and Java.

Modular and customizable Material Design UI components for Android

A circular ImageView for Android

Style and Grammar Checker for 25+ Languages

Suite of tools for deploying and training deep learning models using the JVM. Highlights include model import for keras, tensorflow, and onnx/pytorch, a modular and tiny c++ library for running mat…

✔️ Simple, pretty and powerful logger for android

Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.

Stetho is a debug bridge for Android applications, enabling the powerful Chrome Developer Tools and much more.

greenDAO is a light & fast ORM solution for Android that maps objects to SQLite databases.

Your Cheat Sheet For Android Interview - Android Interview Questions and Answers

The Java gRPC implementation. HTTP/2 based RPC

Realm is a mobile database: a replacement for SQLite & ORMs

Multitask、MultiThread(MultiConnection)、Breakpoint-resume、High-concurrency、Simple to use、Single/NotSingle-process