Can I use .locStringKey referencing .strings files in a Swift package?

[Jeehut]

In my first stream where I tested the first beta of RemafoX I came across an issue (exactly here) where I noticed that LocalizedStringKeys don't seem to work when the .strings files lie in a Swift package. The project where this happened is open source an can be found here. I am applying PointFree's modularization approach in that project, but it seems LocalizedStringKey doesn't play very well with it.

What can I do? Is this a SwiftUI limitation or is it a bug in RemafoX?

[Jeehut]

After reading this blog post from @MarcoEidinger, I learned that Apple does already provide a solution for LocalizedStringKey when the .strings files lie in a Swift package: There's an initializer for the SwiftUI Text view taking a bundle parameter where developers need to pass Bundle.module or more generally the bundle of the package where the .strings files lie:

Text("MainScreen.Greeting", bundle: .module) // => "Hello, World!" in 🇺🇸English and "ハロー、ワールド" in 🇯🇵Japanese

Unfortunately, as far as I could find, Text seems to be the only view taking a bundle parameter. But most others views in SwiftUI have a label-based initializer, such as Button or TextField where you could always create a Text view with a custom bundle:

Button {
  print("Cancel requested")
} label: {
  Text("Global.Action.Cancel", bundle: .module)
}

You might want to add a Text view extension with a custom initializer to streamline this code a bit:

extension Text {
   public init(locStringKey: LocalizedStringKey) {
      self.init(locStringKey, bundle: .module)
   }
}

If that's too inconvenient, you can always revert back to using .string instead of .locStringKey which will give you a properly localized String for your built application. The only downside is (AFAIK) that the text won't localize in SwiftUI previews if you set them to a specific language to see multiple previews in different languages side-by-side.