Android X backwards compatibility

Question

I have Android App that uses support library versions 27.1.2. I want to consume a library written using Android X (api 28).

There are few issues with name spacing of

Answer 1

This is not possible. To use any library that depends on AndroidX, your project must migrate your whole project to AndroidX.

Note that the reverse is supported - you can use libraries built with Support Library in projects that use AndroidX (that's the purpose of the android.enableJetifier=true flag).