Android自定义控件

专栏：自定义控件

http://blog.youkuaiyun.com/column/details/androidcustomview.html

android字符串进阶

http://mikewang.blog.51cto.com/3826268/862643

android视频

老罗

http://edu.51cto.com/course/course_id-702.html

Material Design

http://www.1sters.com/wikis/material_design_zh/animation/authentic-motion.html