item_ripple_samples.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <io.github.vejei.bottomnavigationbar.BottomNavigationBar
        android:id="@+id/bar_unbounded_ripple"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toTopOf="@id/bar_bounded_ripple"
        app:navigation_menu="@menu/bottom_nav_five_items"
        app:item_unbounded_ripple="true"/>

    <io.github.vejei.bottomnavigationbar.BottomNavigationBar
        android:id="@+id/bar_bounded_ripple"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toBottomOf="@id/bar_unbounded_ripple"
        app:layout_constraintBottom_toTopOf="@id/bar_custom_ripple"
        app:navigation_menu="@menu/bottom_nav_five_items"
        app:item_unbounded_ripple="false"/>

    <io.github.vejei.bottomnavigationbar.BottomNavigationBar
        android:id="@+id/bar_custom_ripple"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toBottomOf="@id/bar_bounded_ripple"
        app:layout_constraintBottom_toTopOf="@id/bar_ripple_disabled"
        app:navigation_menu="@menu/bottom_nav_five_items"
        app:item_ripple_color="@color/teal_200"/>

    <io.github.vejei.bottomnavigationbar.BottomNavigationBar
        android:id="@+id/bar_ripple_disabled"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toBottomOf="@id/bar_custom_ripple"
        app:layout_constraintBottom_toBottomOf="parent"
        app:navigation_menu="@menu/bottom_nav_five_items"
        app:item_ripple_enabled="false"/>

</androidx.constraintlayout.widget.ConstraintLayout>