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I am working on a project with mixed Objective-C and Swift; I followed the "Using Swift with Cocoa and Objective-C" guide by Apple and it works great.
Out of curiosity, I would like to locate and read the generated header described in the "Mix and Match" chapter :
But I can not find it anywhere in Xcode
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${Your project name}-Swift. h is for objc based project to use swift code I remember. It is generated by XCode, to translate swift code to a header file for objc to import. If you don't need to use swift in objc project, you don't need it.
Alternatively, you can create a bridging header yourself by choosing File > New > File > [operating system] > Source > Header File. Edit the bridging header to expose your Objective-C code to your Swift code: In your Objective-C bridging header, import every Objective-C header you want to expose to Swift.
Yes, developers do need to perform work and creating a header file of the public interface it work. It is also documentation which I guess can also be skipped since it is work. The auto-created header file does no good for Swift classes using other Swift classes.
You need to quote the header file name when importing it in the bridging header. Like this: #import "UIImageView+WebCache.
Using Finder, after a successful build in Xcode 10, the generated header can be found deep in the derived data :
~/Library/Developer/Xcode/DerivedData/
ProductModuleName-foo/
Build/
Intermediates.noindex/
ProductModuleName.build/
Debug-iphoneos/
ProductModuleName.build/
DerivedSources/
ProductModuleName-Swift.h
Where ProductModuleName is the PRODUCT_MODULE_NAME of your target and foo a seemingly random string.
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If you want to find the header file in your project, press..
cmd + shift + 0
when the search bar pops up, search for your file name
MyProject-swift.h
on the file press
cmd + shift + j
then right click and tap reveal in finder
1) Go to any objective c class where you import Myproject-swift.h
2) Then press cmd on "#import Myproject-swift.h" on top of the file
3) Click "jump to definition"
3) And there it is!
Let me know if that solves your problem!
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