http://blog.****.net/ryantang03/article/details/8948037
http://blog.****.net/ryantang03/article/details/8941364
http://blog.****.net/yanbober/article/details/45306483
http://stormzhang.com/devtools/2014/11/28/android-studio-tutorial2/
http://stormzhang.com/devtools/2015/06/17/android-studio-all/
http://stormzhang.com/android/2016/06/10/learn-android-byself/