Re: cursor ills
Re: cursor ills
- Subject: Re: cursor ills
- From: "M. Uli Kusterer" <email@hidden>
- Date: Thu, 2 Oct 2003 22:40:58 +0200
At 15:21 Uhr -0400 02.10.2003, robert l clair wrote:
In my limited sample, 5 or so, they don't think of
it as the wait cursor - they think of it as the "spinning ball of
death" cursor. If it disappears
and the app comes back it isn't like "Oh it finished doing what it
was doing" it's more "A near
death experience miraculously averted." I think the problem is that
(1) it doesn't appear immediately
when a potentially lengthly operation starts and (2) at least on a
perceptual basis the delay before
it starts doesn't feel consistent. It think that a application
controlled wait cursor, used consistently,
would make them happier.
It *is* the spinning beach ball of death. Wherever did you get the
idea that it was a "wait" cursor? Hogging the CPU for a lengthy
amount of time without responding to events is considered bad form
for an application on a modern, pre-emptively threaded, multi-tasked
OS.
Look at the Finder: Normally, it displays the "spinning watch
cursor" when it's doing something lengthy, and it also handles events
at least in a limited fashion (you could run a nested run loop, for
example, which takes care of handling window redraws, though even
better would be just to fire a separate NSThread to actually take
care of the busywork, and let the user keep on working with your app
as she pleases).
It's a feature, not a bug. It's Apple's way of telling you to
rethink your application's design, instead of messing about as you
would have done on those old single-tasked OSs.
In the good old MultiFinder days, Apple tried by asking nicely with
their cooperative multitasking. That didn't work, so now they just
force you to do the right thing by otherwise forcing the beach ball
upon you.
(OK, there is an API to turn off the beach ball, but if you really
think you have to do a bad design, find it yourself... :-p )
--
Cheers,
M. Uli Kusterer
------------------------------------------------------------
"The Witnesses of TeachText are everywhere..."
http://www.zathras.de
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| | >cursor ills (From: robert l clair <email@hidden>) |