UIActionSheet，取消按钮运行方法

Question

Every time I press a cancel button in UIActionSheet, it runs a method. I have no idea why, I checked whole my code many times, but I still can't see the problem. Could you help me to find it ?

-(IBAction)moreOptions
{

    giftTitle = self.title;

     if(![giftTitle isEqualToString:@"bla"])
     {
        actionSheet = [[UIActionSheet alloc]initWithTitle:giftTitle
                                                            delegate:self
                                                   cancelButtonTitle:@"Back"
                                              destructiveButtonTitle:nil
                                                   otherButtonTitles:@"Send via email",
                                  @"Read in Wikipedia"
                                  , nil];
     }
    else 
    {
        actionSheet = [[UIActionSheet alloc]initWithTitle:giftTitle
                                                 delegate:self
                                        cancelButtonTitle:@"Back"
                                   destructiveButtonTitle:nil
                                        otherButtonTitles:@"Send via email",
                       @"Read in Wikipedia", @"Pineapple mode"
                       , nil];

    }
    actionSheet.actionSheetStyle = UIActionSheetStyleDefault;
    [actionSheet showInView:self.view.window];

}

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{

    // выстраеваем дальнейшие действия кнопок

        switch (buttonIndex) 
        {
            case 0:
                [self showPicker];
            break;

            case 1:
                [self goWiki];
            break;

            case 2:
                [self showPineapple];
            break;

            default:
            break;

        }

}

So it runs method showPineapple . Please help !

Answer 1

Ya when you press cancel button on action sheet then it's delegate function always call, with the last index.

If you are implementing multiple actionsheet then just use it by tag value.

Answer 2

You need to implement something like this:

Change your if and else sections to add a unique tag for each UIActionSheet:

if(![giftTitle isEqualToString:@"bla"]) {
    actionSheet = [[UIActionSheet alloc]initWithTitle:giftTitle
                                             delegate:self
                                    cancelButtonTitle:@"Back"
                               destructiveButtonTitle:nil
                                    otherButtonTitles:@"Send via email", @"Read in Wikipedia" , nil];
    actionSheet.tag = 10;
} else {
    actionSheet = [[UIActionSheet alloc]initWithTitle:giftTitle
                                             delegate:self
                                    cancelButtonTitle:@"Back"
                               destructiveButtonTitle:nil
                                    otherButtonTitles:@"Send via email", @"Read in Wikipedia", @"Pineapple mode", nil];

    actionSheet.tag = 20;
}

Then look for the tag in the actionSheet:clickedButtonAtIndex: message handler:

case 2:
   if (actionSheet.tag == 20)
      [self showPineapple];
   break;

This means [self showPineapple] will only run in the else scenario, while nothing will happen in the if scenario (just as nothing will happen for buttonIndex 3 in the else scenario (where the Cancel button is indeed at index 3) .