安卓 开源框架xUtils

http://www.tuicool.com/articles/jQnMRjB

https://github.com/wyouflf/xUtils3/tree/master

http://blog.csdn.net/dj0379/article/details/38356773/

http://www.jb51.net/article/89784.htm

http://www.jb51.net/article/98001.htm