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POAs a new Objective-C developer, what memory-related issues should I watch out for using ARC?
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  1. POAs a new Objective-C developer, what memory-related issues should I watch out for using ARC?
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    copied!<p>Recently I've begun to code in Objective-C for iOS 5 devices. My brand new MacBook is loaded with Xcode 4.2 and the latest Mac &amp; iOS SDKs. So far it's been a fun experience but there is one problem that I see with the current state of documentation and available books.</p> <p>Specifically, most books (that have yet to be updated) always reference how and when to manage your memory. This is great, however, the current SDK/compiler includes Automatic Reference Counting and since I leave this turned on for my projects, I have no clue as to what I should personally monitor and manage myself.</p> <p>I come from a C# background. Memory management in C# (technically, .NET) is entirely handled by the framework garbage collector. I understand that ARC is actually a compiler feature that automatically adds boiler-plate code where it belongs. Furthermore, my attempts to try and discover where I should manage my own releasing of objects has caused nothing but compiler errors because ARC wants to take care of it for me.</p> <p>I have yet to find a case where I've needed to manage my objects. I am becoming "lazy" because I don't know what to monitor and release myself and I am completely oblivious about how this behavior could affect the performance of my application.</p> <p>In new-user terms, what "gotchas" should I be aware of while using ARC in my iOS projects? I've read a few questions regarding memory management and ARC around here but, to be honest, they are not to friendly to the new iOS developer. Could someone please give a reasonable, bullet-point list that explains what problems and issues to watch out for, as well as a fair guide as to when self-management of memory is necessary?</p>
 

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