?
http://blog.csdn.net/lan410812571/article/details/12840263
http://blog.csdn.net/hmg25/article/details/8100896
?
http://www.eoeandroid.com/thread-307819-1-1.html
http://blog.csdn.net/leilu2008/article/details/10210031
http://blog.csdn.net/tu_bingbing/article/details/8504680