iphone 弹出选择对话框 UIActionSheet

//弹出选择框
-(void)showOptionSheet{    
    NSString *title = [Comm str:@"option"];    
    UIActionSheet * dateSheet = [[UIActionSheet alloc] initWithTitle:title                                  
                                                            delegate:self                                 
                                                   cancelButtonTitle:[Comm str:@"passwordEdit"]
                                              destructiveButtonTitle:[Comm str:@"PayPasswordEdit"]                           
                                                   otherButtonTitles:nil];
    dateSheet.actionSheetStyle = self.navigationController.navigationBar.barStyle;
    [dateSheet showInView:self.view];
}

-(void)actionSheet:(UIActionSheet*)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{
    if (buttonIndex == 0) {
           //@"PayPasswordEdit"
    }else if (buttonIndex == 1) {
       //@"passwordEdit"
    }
}