A standard cause of exc_bad_access mistakes that are not detectable because of the compiler is aiming to accessibility introduced objects. In this sort of instances, enabling NSZombies in Xcode might be a powerful debugging strategy. Enabling NSZombies retains objects that could Commonly be unveiled alive as “zombies”.

This provides far better effectiveness, while you should Understand that whenever the view’s bounds improve, the shadow route also really should be up to date.

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On the other hand, you may outline a shadow path to prevent this highly-priced calculation and improve the rendering. For a regular rectangular view, you would determine a shadow path as:

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Just before iOS five, the developer needed to manually deal with the threads. However, the release of iOS five included new ways to the managed item context to eliminate the need for manual thread management; as a substitute you can securely access Core Data objects through a block of code passed to your performBlock: or performBlockAndWait: methods.

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If the apple iphone initially arrived out, clean scrolling was on the list of keys to the beneficial person practical experience. However, there are plenty of issues a amateur developer will make that hire ipad programmers could potentially cause a lag to manifest though scrolling. Illustrations incorporate: