官网 http://proguard.sourceforge.net/
Android进阶之ProGuard代码混淆 http://hanhailong.com/2015/12/28/Android%E8%BF%9B%E9%98%B6%E4%B9%8BProGuard%E4%BB%A3%E7%A0%81%E6%B7%B7%E6%B7%86/ https://segmentfault.com/a/1190000004461614 https://www.zybuluo.com/shark0017/note/163330
使用proguard混淆android代码
http://blog.isming.me/2014/05/31/use-proguard/
Proguard使用教程
http://www.cnblogs.com/duanxz/p/3651418.html
Android proguard 详解
http://blog.csdn.net/banketree/article/details/41928175
Proguard使用最新，最全教程，亲自试验
http://blog.csdn.net/rulon147/article/details/42550901