Method Swizzling in iOS 5?

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Apple sent an email a while ago to some devs that were found to be using method swizzling in App Store apps:

Your application, xxx, currently posted to the App Store is using
method_exchangeImplementations to exchange the implementation of Apple
provided APIs with your own implementations. Because of upcoming
changes, this behavior in your application may cause a crash or cause
user data loss on iPhone OS 4.0.

xxx uses method_exchangeImplementations to exchange the implementation
of dealloc with your method ttdealloc. It also exchanges the
implementation of the method popViewControllerAnimated: with your
method popViewControllerAnimated2:.

Please resolve this issue immediately and upload your new binary to
iTunes Connect. We may remove your application if we believe that
doing so is prudent or necessary.

Looks like they wanted to get rid of it, so I’d say chances are pretty high that they’ve now blocked it completely.

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