How to include assets / resources in a Swift Package Manager library?

Question

I would like to ship my library using Apple\'s Swift Package Manager. However my lib includes a .bundle file with several strings translated in different languages. Using co

Answer 1

Due to framework bundles not being supported yet, the only way to provide bundle assets with an SPM target is through a Bundle. If you implement code in your framework to search for a particular bundle in your main project (supporting asset bundles), you can load resources from said bundle.

Example:

Access the bundled resources:

extension Bundle {
    static func myResourceBundle() throws -> Bundle {
        let bundles = Bundle.allBundles
        let bundlePaths = bundles.compactMap { $0.resourceURL?.appendingPathComponent("MyAssetBundle", isDirectory: false).appendingPathExtension("bundle") }

        guard let bundle = bundlePaths.compactMap({ Bundle(url: $0) }).first else {
            throw NSError(domain: "com.myframework", code: 404, userInfo: [NSLocalizedDescriptionKey: "Missing resource bundle"])
        }
        return bundle
    }
}

Utilize the Bundled resources:

        let bundle = try! Bundle.myResourceBundle()
        return UIColor(named: "myColor", in: bundle, compatibleWith: nil)!

You can apply the same logic for all resource files, including but not limited to storyboards, xibs, images, colors, data blobs, and files of various extensions (json, txt, etc).

Note: Sometimes this makes sense, sometimes it doesn't. Determine use to own project's discretion. It would take very specific scenarios to justify separating Storyboards/Xibs into bundled assets.