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https://issues.apache.org/jira/browse/CB-264?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13227824#comment-13227824
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Shazron Abdullah commented on CB-264:
-------------------------------------
Hmm, that looks like a WebKit crash. Can you check whether you get any memory
warnings in your console log?
Fundamentally, this is a WebKit bug that cannot be worked around currently (it
does not release memory of images that a not used anymore). I did extensive
measurements by loading huge images in a previous project, and it consistently
crashes because of this bug.
I believe it has been reported to the WebKit project, with no resolution:
https://bugs.webkit.org/show_bug.cgi?id=31253
https://bugs.webkit.org/show_bug.cgi?id=39628
Usually, setting the image src to null I think would flag the gc to recycle the
memory, but I don't think it will work because of this bug.
Others have the same problem, from the Apple Dev Forums (login needed):
https://devforums.apple.com/search.jspa?resultTypes=MESSAGE&q=UIWebView+memory&peopleEnabled=true&start=1&dateRange=all
There are purported "workarounds" in some of the posts (I don't remember which)
and I've tried them all – with no success.
I however, haven't tried the workarounds or re-tested this bug with iOS 5.1.
> camera.getPicture() CRASH when repeatedly called on iOS
> -------------------------------------------------------
>
> Key: CB-264
> URL: https://issues.apache.org/jira/browse/CB-264
> Project: Apache Callback
> Issue Type: Bug
> Components: iOS
> Affects Versions: 1.4.0
> Environment: PG 1.4.1 on iOS
> Crash on iPhone4S, iPad2 and iPod Touch
> Reporter: Phil Haeusler
> Assignee: Shazron Abdullah
> Priority: Critical
> Fix For: 1.6.0
>
>
> We are experiencing an intermittent crash when calling camera.getPicture() on
> multiple devices. The crash can occur either as the pickerController is
> popped in from the bottom, or after you tap the Use button to accept the
> picture. The app requires the taking and review of pictures in a fairly fast
> manner. We've found the crash can occur anytime after we've capture only 1
> or 2 photos. Sometimes we go for quite a while without crashing.
> We see that the images captured are stored in tmp/photo_nnn.jpg, but we do
> not believe we've reached any storage limits here.
> We are taking the image and displaying it in a <img> - so possibly there is
> an issue with UIWebView retaining references to previously loaded images, and
> exhausting it's memory. But not really sure if that could be an issue.
> We've created a small app that we can crash by repeated taking and viewing
> images. There doesn't seem to be anything special about it.
> https://gist.github.com/1868997
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