Iphone 同一委托上的多个UIActionSheet

我在写一个益智游戏。当用户按下check按钮时，我查看他们输入的解决方案是否正确。根据结果，我将为他们呈现两张行动表中的一张。目前，我只有一些NSLog语句来确保调用了这些内容，但其中只有一个工作表似乎工作正常

当我单击淋浴RorsActionSheet中的按钮时，不会调用任何内容。行动表从屏幕上消失，但日志永远不会打印

我怀疑这与向同一个代理（self）声明两个操作表有关

应该调用的方法有：

- (void) levelCompleteActionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex {
    if (buttonIndex != [actionSheet cancelButtonIndex]) {
        NSLog(@"return to levelSelect");
        //pushViewController:levelSelect
    }
    else {
        NSLog(@"continue to examine solution");
    }
}


- (void) showErrorsActionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex {
    if (buttonIndex != [actionSheet cancelButtonIndex]) {
        NSLog(@"show errors in red");
    }
    else {
        NSLog(@"continue to try");
    }
}

我在接口文件中声明了UIActionSheet协议，如下所示：

@interface GamePlay : UIViewController <UIActionSheetDelegate> {

@界面游戏性：UIViewController{

UIActionSheet将在其委托上调用的方法是UIActionSheet委托协议中列出的方法

---

若要调用，您的方法必须是这些方法之一。我没有看到该协议中列出的

levelCompleteActionSheet

或

showErrorsActionSheet

：）您的方法必须命名为

actionSheet:ClickedButtonIndex:

，而不是您用整块布拼凑的某个名称。

为每个actionSheet设置一个标记，然后使用switch语句

指定标记 UIActionSheet代表

---

这一点同样适用于此类中的任何其他地方，包括

levelCompleteTactionSheet:

和

showErrorsActionSheet:

。唯一的区别是，您需要为每个actionSheet创建一个iVar，而不是在

checkSolution

中使用标记来创建它们解决此问题

levelCompleteActionSheet.tag=100

淋浴RorsActionSheet.tag=101

- (void) levelCompleteActionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex {

  if(actionSheet.tag == 100){

     // levelCompleteActionSheet implement your required function

     }
  else if(actionSheet.tag == 101){

     // showErrorsActionSheet implement your required function

   } 
}

- (void)checkSolution
{
    if (allCorrect) 
    {
        UIActionSheet *levelCompleteActionSheet = [[UIActionSheet alloc] initWithTitle:@"Congratulations! You Have Finished the Level!" delegate:self cancelButtonTitle:@"Review my work" destructiveButtonTitle:@"Choose next puzzle" otherButtonTitles:nil, nil];

        [levelCompleteActionSheet setTag: 0];

        [levelCompleteActionSheet showInView:self.view];
        [levelCompleteActionSheet release];
    }
    else
    {    
        UIActionSheet *showErrorsActionSheet = [[UIActionSheet alloc] initWithTitle:@"Sorry, thats not right. Show errors in red?" delegate:self cancelButtonTitle:@"No Thanks, I'll keep trying" destructiveButtonTitle:@"Yes please, I'm stuck!" otherButtonTitles:nil, nil];

        [showErrorsActionSheet setTag: 1];

        [showErrorsActionSheet showInView:self.view];
        [showErrorsActionSheet release];
    }
}

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex 
{
    switch ( actionSheet.tag )
    {
        case 0: /* levelCompleteActionSheet */
        {
            switch ( buttonIndex )
            {
                case 0: /* 1st button*/
                    break;
                case 1: /* 2nd button */
                    break;
            }
        }
            break;
        case 1: /* showErrorsActionSheet */
            break;
    }
}

- (void) levelCompleteActionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex {

  if(actionSheet.tag == 100){

     // levelCompleteActionSheet implement your required function

     }
  else if(actionSheet.tag == 101){

     // showErrorsActionSheet implement your required function

   } 
}