Re: UIActionSheet -addButtonWithTitle weirdness on iPad
Re: UIActionSheet -addButtonWithTitle weirdness on iPad
- Subject: Re: UIActionSheet -addButtonWithTitle weirdness on iPad
- From: Fritz Anderson <email@hidden>
- Date: Thu, 03 Oct 2013 14:58:23 -0500
On 3 Oct 2013, at 12:59 PM, David Duncan <email@hidden> wrote:
> On Oct 2, 2013, at 11:49 PM, Markus Spoettl <email@hidden> wrote:
>
>> On 10/2/13 10:40 PM, David Duncan wrote:
>>> On Oct 2, 2013, at 9:33 AM, Markus Spoettl <email@hidden> wrote:
>>>
>>>> On the iPad (both device and simulator) this produces a sheet with
>>>> "Button2" missing. No matter how many buttons one adds, the last one added
>>>> goes missing.
>>>>
>>>> On iPhone (again both device and simulator) this produces a sheet with the
>>>> expected buttons "Cancel", "Button1", "Button2".
>>>>
>>>> If I set the cancelButtonTitle: parameter to nil, both iPad and iPhone
>>>> behave correctly, iow "Button1", "Button2".
>>>
>>>
>>> Try setting the cancelButtonIndex after you’ve added the extra buttons. The
>>> safest way to do this would be to stash off the number of buttons after
>>> you’ve created it (via numberOfButtons) then add your extra buttons, then
>>> reset the cancelButtonIndex based on the stashed value. -- David Duncan
>>
>> Thanks Duncan, I will try that. However, as Fritz pointed out, the HIG says cancel buttons are undesireable, so I guess the easiest solution is to do that.
>
>
> When displaying an action sheet as a popover, the action sheet will automatically remove the cancel button, so you shouldn’t need to do that yourself (in fact I would recommend against it).
>
> Thinking a bit about this you may want to use canceledItemIndex instead of numberOfButtons, but either way its something to try.
> --
> David Duncan
The point of this thread is that it _doesn't_ remove the Cancel button. It removes the _last_ button, Cancel or not. And UIActionSheet knows which button is Cancel, because it was set in the initializer.
And (I'm sorry I haven't tried it yet) if the action popover arises from another popover, the Cancel button isn't supposed to be removed at all.
In my experiment with an action sheet anchored to a bar button, .numberOfButtons was as expected — if you specify Cancel plus to other buttons, the count is three — but only two buttons are visible. The button array contains all three buttons, as expected.
— F
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