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POiOS 4.3.2 user reported app crashing on launch
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  1. POiOS 4.3.2 user reported app crashing on launch
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    copied!<p>An update of my app has just been approved by Apple and users are now complaining the app does not launch anymore. It also happens to some new users. </p> <p>I have absolutely no idea where the problem is nor can I reproduce the problem. I have tested the update on various devices (&amp; simulator) before submitting the update: iPhone 2G running 3.1.3, iPod Touch 2G running 4.3 , iPhone 3G and iPhone 4 running 4.3.1. They ALL work as expected. The update has a few new features like random picking photos from user's photo library using AssetsLibrary framework, I have weak-linked the framework to support iOS 3 and the feature does not load until selected by the user so it should not be the problem. After all, the update has been tested and approved by Apple.</p> <p>I have difficulty collecting crash information from users with the problem, but I know one of them uses iPhone 4 with iOS 4.3.2. A quick google search reveals that iOS 4.3.2 has problems launching third party apps, I suspect my problem has something to do with this but I can not confirm it. I am planning to downgrade my dev iPhone 4 to iOS 4.3.2 to test it.</p> <p>Does anybody here experienced similar problem? My app's ranking has dropped significantly because of the negative reviews so I need to fix this as soon as possible.</p> <p><strong>Edit:</strong></p> <ul> <li><p>There should not be any watch dog problem, I tested the update on the above mentioned devices with and without Xcode/debugger.</p></li> <li><p>Memory management. I can not reproduce the problem (I tried quite hard) so I can not confirm if it's EXC_BAD_ACCESS, I did check reference count and nil released objects (safely release) when applicable, I am absolutely not a pro in memory management so I take it seriously, I checked leaks and allocations with instruments, stress-tested and did memory warning simulations, no problem was found.</p></li> <li><p>I have <code>UIApplicationWillEnterForegroundNotification</code> in <code>-loadview</code>, it's only available after iOS 4.0 so I check if it exists with <code>&amp;</code> operator because I use it.</p></li> <li><p>I do not persist data other than saving facebook connect token and expiry date (NSDate) in <code>NSUserDefaults</code>, since the problem also happens to new users so I think it's something else</p></li> </ul>
 

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