關鍵詞：ActionSheet AlertView
1、創建一個Single View Application工程，命名為：ActionSheetDemo，如下圖

2、在ViewController.xib上放置一個Button，Title為“刪除”
      修改ViewController.h，添加操作：
[cpp] 
<span style="font-family:Microsoft YaHei;font-size:18px;">-(IBAction)delete:(id)sender;</span> 
     將Button“刪除”的Touch Up Inside與操作delete關聯起來（操作方法上一篇已講過）
3、修改Controller ViewController，讓其實現協議UIActionSheetDelegate：
[cpp] view plaincopy
<span style="font-family:Microsoft YaHei;font-size:18px;">//修改，實現UIActionSheetDelegate協議 
@interface ViewController : UIViewController<UIActionSheetDelegate></span> 

4、修改ViewController.m
     實現操作delete，如下
[cpp] 
<span style="font-family:Microsoft YaHei;font-size:18px;">//執行刪除操作 
-(IBAction)delete:(id)sender{ 
    UIActionSheet *actionSheet = [[UIActionSheet alloc] 
                                  initWithTitle:@"確定要刪除該服務器？"  
                                  delegate:self //actionSheet的代理，按鈕被按下時收到通知，然後回調協議中的相關方法 
                                  cancelButtonTitle:@"取消" 
                                  destructiveButtonTitle:@"確定" 
                                  otherButtonTitles:nil]; 
    //展示actionSheet 
    [actionSheet showInView:self.view]; 
}</span> 
ViewController作為ActionSheet的代理，需要實現協議中定義的方法，有2中實現方法
方法一：實現didDismissWithButtonIndex，在ActionSheet消失後做提示處理
[cpp] 
<span style="font-family:Microsoft YaHei;font-size:18px;">//方法1 
-(void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex{ 
    NSLog(@"didDismissWithButtonIndex"); 
    UIAlertView *alert = nil; 
    if(buttonIndex == [actionSheet destructiveButtonIndex]){//確定 
        //NSLog(@"確定"); 
        alert = [[UIAlertView alloc] 
                 initWithTitle:@"結果"  
                 message:@"刪除完畢"  
                 delegate:self  
                 cancelButtonTitle:@"確定"  
                 otherButtonTitles:nil]; 
        [alert show]; 
    }else if(buttonIndex == [actionSheet cancelButtonIndex]){//取消 
        NSLog(@"取消"); 
    } 
}</span> 

方法而，實現clickedButtonAtIndex，在ActionSheet上的按鈕被點擊時做處理
[cpp] 
y:Microsoft YaHei;font-size:18px;">//方法2 
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{ 
    NSLog(@"clickedButtonAtIndex"); 
    UIAlertView *alert = nil; 
    if(buttonIndex == [actionSheet destructiveButtonIndex]){//確定 
        //NSLog(@"確定"); 
        //執行刪除操作 
        [self doDelete]; 
        alert = [[UIAlertView alloc] 
                 initWithTitle:@"結果"  
                 message:@"刪除完畢"  
                 delegate:self  
                 cancelButtonTitle:@"確定"  
                 otherButtonTitles:nil]; 
        [alert show]; 
    }else if(buttonIndex == [actionSheet cancelButtonIndex]){//取消 
        NSLog(@"取消"); 
    } 
}</span> 

兩種方法都是通過buttonIndex判斷當前點擊的按鈕，做不同處理
演示方法，doDelete沒有實現實際操作，如下
[cpp] 
<span style="font-family:Microsoft YaHei;font-size:18px;">-(void)doDelete{ 
    NSLog(@"執行刪除操作"); 
}</span> 

5、編譯、運行，效果如下：