android异步加载AsyncTask

http://blog.csdn.net/abc5382334/article/details/17097633

http://keeponmoving.iteye.com/blog/1515611

http://www.cnblogs.com/suinuaner/archive/2013/04/11/android_fifty.html

http://blog.csdn.net/lanjianhun/article/details/8675299

http://blog.csdn.net/alex0203/article/details/7646973

http://www.cnphp6.com/archives/58164

http://blog.csdn.net/weihan1314/article/details/8045993