Dianne,
 
Thanks for the explanation, it does leave me concerned that we're yet again
seeing an android version rushed out the door and as a result of this we're
now being told of problems even before consumers have it on their devices.
 
Not upgrading to cupcake isn't an realistic option. The average consumer is
going to do the update and therefore to serve them effectively and test
applications properly I'll have to do the upgrade as well.
 
Al.

---

* Written an Android App? - List it at http://andappstore.com/ *

======
Funky Android Limited is registered in England & Wales with the
company number  6741909. The registered head office is Kemp House,
152-160 City Road, London,  EC1V 2NX, UK.

The views expressed in this email are those of the author and not
necessarily those of Funky Android Limited, it's associates, or it's
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  _____  

From: android-developers@googlegroups.com
[mailto:android-develop...@googlegroups.com] On Behalf Of Dianne Hackborn
Sent: 24 April 2009 09:23
To: android-developers@googlegroups.com
Subject: [android-developers] Re: Layout bugs


We didn't  have time for Cupcake, but we definitely want to have some very
well-defined limits in a future release.  There is no nice error because
what actually is happening is the app is running out of stack space -- some
optimizations and new features in the view hierarchy caused certain
functions to use a little more stack, which can result in apps that were
skirting the edge of the stack to go over the limit.

We apologize, and definitely aren't happy about this; we had some some
additional optimization of the code to reduce stack usage at the very last
minute but found a little later that it still wasn't enough.

Anyway, if this makes cupcake not a good as 1.1 to you, well okay, I guess
don't run cupcake or something.

(Btw, in practice, an application with a deep hierarchy like this is also
going to have noticeable performance issues because of the work required to
manage it, so this can be considered a nice opportunity to do a bit of good
optimization.)


On Fri, Apr 24, 2009 at 12:52 AM, Al Sutton <a...@funkyandroid.com> wrote:



Having read
http://android-developers.blogspot.com/2009/04/future-proofing-your-apps.htm
l I noted this little section;

"Due to changes in the View rendering infrastructure, unreasonably deep
(more than 10 or so) or broad (more than 30 total) View hierarchies in
layouts are now likely to cause crashes. This was always a risk for
excessively complex layouts, but you can think of Android 1.5 as being
better than 1.1 at exposing this problem..."

Will the SDK warn us when we're reaching the limit for crashes?

And more to the point why does it crash and not return some form of
meaningful error to the app? With an error code or thrown exception
developers could create various levels of layout complexity and step down
the layout complexity level until they find one the device will support.

Al.

P.S. No matter what the post says I see this as a regression in
functionality and I definitely do not see it as "Android 1.5 as being better
than 1.1" in any way.

---

* Written an Android App? - List it at http://andappstore.com/ *

======
Funky Android Limited is registered in England & Wales with the
company number  6741909. The registered head office is Kemp House,
152-160 City Road, London,  EC1V 2NX, UK.

The views expressed in this email are those of the author and not
necessarily those of Funky Android Limited, it's associates, or it's
subsidiaries.









-- 
Dianne Hackborn
Android framework engineer
hack...@android.com

Note: please don't send private questions to me, as I don't have time to
provide private support, and so won't reply to such e-mails.  All such
questions should be posted on public forums, where I and others can see and
answer them.





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