JAVA

android bottomnav fab

<androidx.coordinatorlayout.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/coordinator"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <androidx.fragment.app.FragmentContainerView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginBottom="?attr/actionBarSize" />

    <com.google.android.material.bottomappbar.BottomAppBar
        android:id="@+id/bottomBar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom"
        app:backgroundTint="?attr/colorPrimary"
        app:contentInsetEnd="0dp"
        app:contentInsetStart="0dp"
        app:fabAlignmentMode="end">

        <com.google.android.material.bottomnavigation.BottomNavigationView
            android:id="@+id/bottomNavigation"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:backgroundTint="@android:color/transparent"
            app:elevation="0dp"
            android:layout_marginEnd="100dp"
            app:itemIconTint="@android:color/white"
            app:itemRippleColor="@android:color/white"
            app:itemTextColor="@android:color/white"
            app:menu="@menu/menu_activity_home_bottom_navigation" />

    </com.google.android.material.bottomappbar.BottomAppBar>

    <com.google.android.material.floatingactionbutton.FloatingActionButton
        android:id="@+id/fab"
        android:src="@drawable/ic_add_white_24dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_anchor="@id/bottomBar" />


</androidx.coordinatorlayout.widget.CoordinatorLayout>