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

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

A declarative API to handle Android runtime permissions.

An Android TabLayout Lib

A powerful, customizable and extensible ViewPager indicator framework. As the best alternative of ViewPagerIndicator, TabLayout and PagerSlidingTabStrip —— 强大、可定制、易扩展的 ViewPager 指示器框架。是ViewPagerInd…

[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。

The most simple SwipeMenu in the history, 0 coupling, support any ViewGroup. Step integration swipe (delete) menu, high imitation QQ, iOS. ~史上最简单侧滑菜单，0耦合，支持任意ViewGroup。一步集成侧滑(删除)菜单，高仿QQ、IOS。~

Android源码设计模式分析项目

仿美团选择城市、微信通讯录、饿了么点餐列表的导航悬停分组索引列表。

An Android transformation library providing a variety of image transformations for Picasso

在ijkplayer编译的bilibili开源编译版本上，去掉失败的依赖，增加对https支持

用CoordinatorLayout实现Toolbar隐藏和折叠