Presenting action sheet clipped by its superview. Some controls might not respond to touches. On iPhone try -[UIActionSheet showFromTabBar:] or -[UIActionSheet showFromToolbar:] instead of -[UIActionSheet showInView:].
将代码：[actionSheet showInView:self.view]; 改为：[actionSheet showInView:[UIApplication sharedApplication].keyWindow];即可
这个博客上写出了答案：http://dale.leepood.com/2012/04/；
http://blog.csdn.net/kylinbl/article/details/8996078