Change background of selected item

How can I change background of the selected item in order to make it look like this:

I tried to do i this way:
bottomNavigation.getItem(index).setColor(ContextCompat.getColor(DashboardActivity.this, R.color.colorPurpleButtonPressed));
inside of the OnBottomNavigationItemClickListener,
but it causes StackOverFlow

Start at DashboardActivity's OnBottomNavigationItemClickListener and the bottomNavigation.getItem(index).setColor call, then reproduce the StackOverflow reported when changing the selected item. The change is complete when the selected item background matches the supplied screenshot without triggering that failure.

Written by the indexing model from the issue text.