A common reason behind exc_bad_access problems that are not detectable from the compiler is trying to accessibility introduced objects. In this sort of scenarios, enabling NSZombies in Xcode is often an effective debugging procedure. Enabling NSZombies keeps objects that could normally be produced alive as “zombies”.

The opportunity to Check out dynamically at runtime if a category supports a way might be specifically valuable with delegates (see the following issue With this tutorial) that could have optional approaches a developer can prefer to put into action or not.

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Have in mind, though, that adjustments to Core Data objects never always propagate quickly to other threads. Within the normal situation, Main Info objects which might be loaded into memory will not be up-to-date on a different thread until eventually These objects are fetched yet again from persistent storage.

The respondsToSelector: system returns a Boolean value that signifies if the receiver implements or inherits a technique that can respond to a specified message.

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