Apple told you about it, but not very clean. The process is actually pretty simple.
Xcode generates a header file for all your Swift code in the project, so you can use it in Objective-C. Yes, if you have multiple Swift files in your project, you shouldn’t think about what file you need to import — it’s just one for all Swift code. The file name of this header is
"ModuleName-Swift.h". And we’ll set it up now in a few steps. Continue reading “How to use Swift code in Objective-C”