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Asked: 2026-05-27T05:06:37+00:00

I’m new to Objective-C but has a lot experience with Java and .NET. I’m

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I’m new to Objective-C but has a lot experience with Java and .NET.

I’m trying to add EGOPhotoViewer to my iOS 5 project in Xcode 4.2.1. But I get a lot of release, dealloc, retain etc. issues while compiling their code, since I’m using Automatic Reference Counting (I think!).

How can I create a class library, framework or what it is called in Objective C for their code, that I can add to my project?

EDIT:
I’ve done the approach from JeremyP by inserting the code with a new target. I compiled in the beginning, but after a while I get this compile error:

Undefined symbols for architecture i386:
  "_OBJC_METACLASS_$_EGOPhotoViewController", referenced from:
      _OBJC_METACLASS_$_PhotoViewController in PhotoViewController.o
  "_OBJC_CLASS_$_EGOPhotoViewController", referenced from:
      _OBJC_CLASS_$_PhotoViewController in PhotoViewController.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Does anybody know why?

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1 Answer

  1. Editorial Team

    You can’t create frameworks for iOS. You can however, create static libraries using beryllium’s technique. You can also add a static library to your existing project using File / New / New Target... Obviously, once you create the target you can change the Objective-C automatic reference counting build setting to “no” for your new target.

    I thought it was possible to turn ARC on and off at the source file level, but I can’t figure out how.

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