Firebase storage for dev and prod

Question

How can I separate my firebase prod and dev storage with buildtypes or flavors in android ?

I already know how to separate the database but this doesn't apply to storage.
The problem is that the code to instantiate the storage doesn't rely on google-services.json but on a fixed url :
FirebaseStorage.getInstance().getReferenceFromUrl("gs://dev-app.appspot.com");

Answer 1

1. Set in build.gradle (module level)

 buildTypes {
        debug {
            buildConfigField "String", "BASE_URL", '"gs://dev-app.appspot.com"'
        }
        release {
            buildConfigField "String", "BASE_URL", '"gs://prod-app.appspot.com"'
        }

2. In your code use

   FirebaseStorage.getInstance().getReferenceFromUrl(BuildConfig.BASE_URL);