activity_main

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/yellow"
    tools:context=".MainActivity">

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/frame_layout"/>

    <com.google.android.material.bottomappbar.BottomAppBar
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/bottomAppBar"
        android:layout_gravity="bottom"
        android:backgroundTint="@color/black"
        app:fabCradleMargin="10dp"
        app:fabCradleRoundedCornerRadius="50dp">

        <com.google.android.material.bottomnavigation.BottomNavigationView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/bottomNavigationView"
            android:layout_marginEnd="20dp"
            app:labelVisibilityMode="labeled"
            app:itemTextColor="@color/yellow"
            app:itemIconTint="@color/yellow"
            android:background="@android:color/transparent"
            app:menu="@menu/bottom_menu"/>

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

<com.google.android.material.floatingactionbutton.FloatingActionButton
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:backgroundTint="@color/black"
    android:src="@drawable/ic_calendar"
    app:layout_anchor="@id/bottomAppBar"
    app:maxImageSize="35dp"
    app:tint="@color/yellow"/>

</androidx.coordinatorlayout.widget.CoordinatorLayout>