android异步

有2个方案，一是自己写thead + handler 来实现， 另一种是使用AsyncTask。我选择后者

参考文档：

http://blog.youkuaiyun.com/mylzc/article/details/6736988

http://blog.youkuaiyun.com/mylzc/article/details/6772129

下面连接提供了自己写thread + handler 的完整demo代码

http://masl.cis.gvsu.edu/2010/04/05/android-code-sample-asynchronous-http-connections/

下面连接提到Android Asynchronous HTTPClient的实现和优化

http://itstarting.iteye.com/blog/1231195

Demo:  Grab a URL Source with ProgressDialog and AsyncTask

http://www.androidsnippets.com/grab-a-url-source-with-progressdialog-and-asynctask

AsyncTask的基本概念

http://changkunyang.iteye.com/blog/1112531

http://dyingbleed.iteye.com/blog/1178114

http://blog.youkuaiyun.com/furongkang/article/details/6998734