UIAlertSheet&#39;s constructor takes an otherButtonTitles parameter as a varg list. I&#39;d like to specify the other button titles from an NSArray instead. Is this possible?

i.e. I have to do this:

    id alert = [[UIActionSheet alloc] initWithTitle: titleString
                                      delegate: self
                                      cancelButtonTitle: cancelString
                                      destructiveButtonTitle: nil
                                      otherButtonTitles: button1Title, button2Title, nil];

But since I&#39;m generating the list of available buttons at runtime, I really want something like this:

    id alert = [[UIActionSheet alloc] initWithTitle: titleString
                                           delegate: self
                                  cancelButtonTitle: cancelString
                             destructiveButtonTitle: nil
                                  otherButtonTitles: otherButtonTitles];

Right now, I&#39;m thinking that I need to have a seperate call to `initWithTitle:` for 1 item, 2 items and 3 items. Like this:

    if ( [titles count] == 1 ) {
         alert = [[UIActionSheet alloc] initWithTitle: titleString
                                             delegate: self
                                    cancelButtonTitle: cancelString
                               destructiveButtonTitle: nil
                                    otherButtonTitles: [titles objectAtIndex: 0], nil];
    } else if ( [titles count] == 2) {
         alert = [[UIActionSheet alloc] initWithTitle: titleString
                                             delegate: self
                                    cancelButtonTitle: cancelString
                               destructiveButtonTitle: nil
                                    otherButtonTitles: [titles objectAtIndex: 0], [titles objectAtIndex: 1],  nil];
    } else {
        // and so on
    }

That&#39;s a lot of duplicate code, but it might actually be reasonable since I have at most three buttons. How can I avoid this?

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Use NSArray to specify otherButtonTitles?