Picture Selector Library for Android or 图片选择器

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

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

基于zxing的扫一扫，优化了扫描二维码速度，集成最新版本的jar包（zxing-core.jar 3.3.3），集成简单，速度快，可配置颜色，还有闪光灯，解析二维码图片，生成二维码等功能

体验极佳的Android图片手势控件。An Android image gesture control with excellent user experience.

A photoView to scale image and finish activity，高仿微信可拖拽返回PhotoView

Material Design Widgets Study Samples

爱播支持列表播放、全屏播放、重力自动旋转、清晰度切换、播放引擎切换、自定义主题颜色、窗口播放等

demo of my practices