[Android] IntentService

http://ysl-paradise.blogspot.tw/2010/10/intentservice.html

http://lp43.blogspot.tw/2010/12/intentservice.html

http://blog.csdn.net/lincyang/article/details/6673338

http://android.blog.51cto.com/268543/528166

http://rainbow702.iteye.com/blog/1143286