Date: Mon, 03 Feb 2014 10:42:47 -0800
From: Matt Neuburg <[email protected]>
To: Rick Mann <[email protected]>
Cc: "[email protected] Dev" <[email protected]>
Subject: Re: Mismatched viewWillAppear/viewDidDisapper calls possible?
Message-ID: <[email protected]>
Content-Type: text/plain; charset=us-ascii
On Mon, 27 Jan 2014 20:15:37 -0800, Rick Mann <[email protected]> said:
Should it ever be possible for there to be a mismatch between -viewWillAppear:
and -viewDidDisappear:? I suppose it is possible, since the docs say the Appear
methods aren't called in a popover in some circumstances (which I think is
really bad).
Certainly sometimes +viewWillAppear:+ or +viewWillDisappear:+ arrives without the corresponding
+viewDidAppear:+ or +viewDidDisappear:+. I filed a bug on this a couple of years ago and was told
that this was working as expected: nothing in the contract guarantees that "will" will be
followed by "did", they told me, though I tried to argue that the contract is right there
in the name. As you say, it's really bad; please, please file a bug. The guy giving the WWDC videos
on this topic a frighteningly cavalier attitude about this; he seems impervious to any
understanding of the fact that we need coherent reliable order and sequence for these events. m.
--
matt neuburg, phd = [email protected], http://www.apeth.net/matt/
Done: 15971784
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