I have been trying to configure the bottom navigation bar to looks like the material.io,
I checked https://material.io/develop/android/components/bottom-navigation-view/ and https://developer.android.com/reference/com/google/android/material/bottomnavigation/BottomNavigationView
I am out of luck, and looks like they may not use BottomNavigationView.calss to create this
https://material.io/design/environment/surfaces.html#attributes

You can implement that bottom app bar on Android with
BottomAppBarfromcom.google.android.material:material:1.0.0. Here is the reference guide :https://material.io/develop/android/components/bottom-app-bar/There is a "Develop" section on material.io that teaches you how to use libraries to use each component on all platforms. At the moment, most components are not implemented on Android, but hopefully
BottomAppBaris already available !