Banner is an open source Android library that allows developers to easily create an ad rotation effect widget like those made in Tmall，Taobao apps.

A unified payment library integrating WeChat and Alipay.

view

An animated arrow component.

A customizable style captcha component.

timer master

A popup library

Vita is a light and simple library that helps you to share ViewModel between fragments and even activities. Also you can create ViewModels that are available all over the application!