Rotary action on fast scroll index in native app

Can the “rotary action on fast scroll index” as described here be implemented in a native app? I’ve checked out the native “ContactsUI” sample, but it doesn’t include that fast scroll index.

Hello inf1592056328,
Would you please share your source code or code snippet attempts taken by you to implement this feature?

I didn’t try an implementation. I just saw it in the documentation (see link in original post) and was wondering why it was not listed there as being available in a native app.