「Java学习+面试指南」一份涵盖大部分 Java 程序员所需要掌握的核心知识。准备 Java 面试，首选 JavaGuide！

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

Render After Effects animations natively on Android and iOS, Web, and React Native

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…

Modular and customizable Material Design UI components for Android

A circular ImageView for Android

提高 Android UI 开发效率的 UI 库

💪 A framework for assisting in the renovation of Android componentization (帮助 Android App 进行组件化改造的路由框架)

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

🔥 A low-cost Android screen adaptation solution (今日头条屏幕适配方案终极版，一个极低成本的 Android 屏幕适配方案).

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

A Java API for generating .java source files.

⚔️ A common architecture for Android applications developing based on MVP, integrates many open source projects, to make your developing quicker and easier (一个整合了大量主流开源项目高度可配置化的 Android MVP 快速集成框架).

DEPRECATED

A Camera component for React Native. Also supports barcode scanning!

Android filters based on OpenGL (idea from GPUImage for iOS)

难得一见 Jetpack MVVM 最佳实践！在 "以简驭繁" 代码中，对 "视图控制器" 乃至 "标准化开发模式" 形成正确、深入理解！

Android loading animations

Java Native Access

proguard resource for Android by wechat team

An Android library that makes developers use SQLite database extremely easy.

Android library (AAR). Highly configurable, easily extendable deep zoom view for displaying huge images without loss of detail. Perfect for photo galleries, maps, building plans etc.

Android and Java bytecode viewer

一款用于在Android设备上获取照片（拍照或从相册、文件中选择）、裁剪图片、压缩图片的开源工具库

[停止维护]Android屏幕适配方案，直接填写设计图上的像素尺寸即可完成适配，最大限度解决适配问题。

Android-skin-support is an easy dynamic skin framework to use for Android, Only one line of code to integrate it. Android 换肤框架, 极低的学习成本, 极好的用户体验. "一行"代码就可以实现换肤, 你值得拥有!!!

JavaFX Material Design Library

DL : dynamic load framework in android

Cache support for any video player with help of single line

Implementation of Instagram with Material Design (originally based on Emmanuel Pacamalan's concept)