AndroidÆô¶¯ºÍ·þÎñ

http://www.cnblogs.com/hangxin1940/archive/2011/10/14/2206754.html

http://space.itpub.net/7232789/viewspace-715120

http://disanji.net/2010/12/03/android-system-property-service/

http://blog.csdn.net/caimouse/article/details/5789174

http://blog.csdn.net/maxleng/article/details/5508372