http://www.tuicool.com/articles/3ANRjyN

http://blog.csdn.net/shenyuanqing/article/details/50758936

http://www.open-open.com/lib/view/open1415440832246.html

http://blog.csdn.net/Super_codingman/article/details/50395937

http://www.open-open.com/code/view/1421140395968

安卓SharedPreferences封装