Importing Swift classes within a Objective-C Framework

Question

I have a custom Framework that has a bunch of Objective-C Classes. Within the Framework, I'd like to add more classes using Swift. However, when trying to expose the Swift classes to the Objective-C code using: MyProduct-Swift.h, it comes up as "MyProduct-Swift.h file not found".

I've tried this in a single view template and it works fine. Is it not possible to import Swift within a framework?

I've also verified that I have set the Defines Module setting and the Module Name. I've tried it with and without these settings.

Is that your only compiler error? The header isn't generated if the Swift code doesn't compile. — Steve Waddicor
– Steve Waddicor, Commented Jun 9, 2014 at 21:50
@SteveWaddicor All I'm doing in the Swift code is declaring a custom class. And ya, that's my only compiler error. — Oxcug
– Oxcug, Commented Jun 9, 2014 at 22:26
Actually there is no ability to import swift files for now because it's required to add class header into the list of published headers. Swift files from the framework does not produce such headers... for now. — Alexander Volkov
– Alexander Volkov, Commented Sep 13, 2014 at 21:33

Matej Ukmar · Accepted Answer · 2015-01-02 14:59:28Z

14

I found some additional steps to make it all work. In addition to setting 'Define Module' to YES and 'Product Module Name' (usually these are set correct by default if you create new touch Framework in Xcode 6) you also need:

add 'public' keyword to all Swift classes you need in Objective C
you need to add 'public' keyword even to all the methods and properties within the class that you want to access from Objective C
You need to import Swift header in a 'long' way like this:

#import <ProjectName/ModuleName-Swift.h>

answered Jan 2, 2015 at 14:59

Matej Ukmar

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1 Comment

Sham Sundar C Over a year ago

How can we expose internal swift class in Objective-c without making it public?

Irina · Accepted Answer · 2014-06-10 21:22:14Z

4

Ok, I found what the problem is.

Make sure that in Build Settings - > Packaging you have Define Module set to YES and Product Module Name is set as well. Then in the storyboard file the name for the Module should be the same and match what you have in your Build Settings. Then in your Obj-C file write include "-Swift.h"

That did the trick for me.

answered Jun 10, 2014 at 21:22

Irina

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