alertView

属性详细

http://blog.csdn.net/banyingli/article/details/6167592

自定义alertView

http://www.cocoachina.com/bbs/read.php?tid=980&page=1

http://blog.sina.com.cn/s/blog_4adf31ea0100nw42.html

http://www.cocoachina.com/bbs/read.php?tid-11741.html

http://www.cocoachina.com/bbs/read.php?tid=14452

这篇登入设计的自定义alertview很强悍:

http://dev.iphonetw.net/archiver/tid-194.html