How to create a Swift framework to be used by an Objective C application
I am trying to create a Swift environment that can be used by an Objective C application.
- Xcode 6.1, iOS 8
Creating a Swift structure:
- Create a new Swift iOS 8 environment
- Create one Swift class that is public and inherits from NSObject
- Declare one function, eg. func doSomething (text: String)
- Creating a framework
- Question: Where can I get the result? Derived data? Which folder? I tried to build a Release output by selecting Build for Profiling
Creating an Objective C Application:
- Create a new Objective C application
- Add the framework to your application project.
- Question: How can I do this? It looks like nesting inline binary + linked structure should work. Is it correct?
- Make sure Embedded Content with Hidden Code is set to Yes
Depending on how I create the framework and whether I am configured for a simulator or device, I either get a linker error like this:
Undefined symbols for x86_64 architecture: "_OBJC_CLASS _ $ __ TtC14BogusFramework9PublicApi" referenced by: objc-class-ref in AppDelegate.o ld: symbol not found for x86_64 architecture
I am getting a runtime error that it cannot find the Swift libraries:
dyld: library not loaded: @ rpath / libswiftCore.dylib Link from: /private/var/mobile/Containers/Bundle/Application/1B3E1AE0-05D5-4F3E-B866-FA2D46A17363/BogusFrameworkTestAppObjC.app/Frameworks/BogusFramework Reason : image not found
I looked around a bit and found various options but none have worked so far.
Any help is appreciated.
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