On Thu, 2014-01-30 at 10:25 -0500, W. Michael Petullo wrote:
> This is similar to what I tried to describe. However, if I ask for
> 10 elements and I get 10 elements, then I don't really know if (1)
> there are more elements or (2) that 10th element was really the final
> element, right?
>
Correct.
> I think the result is that if things align right (or "wrong"), then
> the
> application will provide a "more" menu entry when, in fact, there are
> no more elements to receive.
>
> I suppose an alternative would be to do a quick one-element browse
> just to
> check for more. I had considered that, but thought it seemed a bit
> kludgey.
>
> Am I still missing something?
>
Nothing missed, everything correct. I'm not fond of the doing the quick
one-element search.
But an alternative could be that if you ask for N elements in each page
to be shown, ask for N + 1 instead. That extra +1 wouldn't be shown, but
it would be used to find out if there are more elements or not.
Other alternative could be assuming the user is going to press "More
elements", so ask them to pre-cache. If you get them, you show the "More
elements" (and the user would inmediatly see them); if not do not show
the button. Still, I don't like very much it :)
J.A.
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