http://www.cnblogs.com/GoodHelper/archive/2011/07/08/android_socket_chart.html
http://blog.csdn.net/watkinsong/article/details/7565586
http://blog.csdn.net/watkinsong/article/details/7565558
http://blog.csdn.net/watkinsong/article/details/7565558
http://blog.csdn.net/watkinsong/article/details/7565586
http://www.cnblogs.com/stg609/archive/2008/11/15/1333889.html