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Editorial Team
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Asked: 2026-05-29T07:51:30+00:00

I would like to include and use this category in my project (lets call

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I would like to include and use this category in my project (lets call it target project). While I want to learn about categories in general, I do need help including the category specified in the link. I haven’t done this before so I need detailed instructions addressing the four questions and any other essential information:

  1. After I copy the project into my Xcode do I need to run it?
  2. In my target project do I need to include it as a library or include it some other way?
  3. What needs to go in my target project class header file?
  4. What needs to go in my target project implementation file?
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1 Answer

  1. Editorial Team

    If you are using a static library, which I don’t believe you are, all of your dependencies must be compiled using the -all_load linker flag (see Technical Q&A QA1490
    Building Objective-C static libraries with categories    , or else you will run into the ‘Unknown Selector’ issue.

    Other than that, you simply include the .h and .m (or .h and .a in the case of a static library) files of the category, and all frameworks that may be required by the category, and you move on with your project.

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