How to make Android library resources private?

Question

How do I make the resources (string, dimen, color, etc.) in my Android library module private?

I\'ve tried both documented ways of doing this and neither work...

Answer 1

Option #2 actually works. I had not properly defined my sourceSets in my build.gradle...

sourceSets {
    main.res.srcDirs = [
        'src/main/res',
        'src/main/res-public'
    ]
}