Add UIActionSheetDelegate
delegate in .h file and try like this then it'l work.
UIActionSheet *actionSheet = [[UIActionSheet alloc]initWithTitle:nil delegate:nil cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles:@"Send Now",@"Non Recurring",@"Recurring", nil];
actionSheet.delegate = self;
[actionSheet showInView:self.view];