BottomAppBar inside BottomNavigationView adds rectangle

When BottomNavigationView is added inside BottomAppBar, offset rectangle appears. The below screenshot shows the behavior.

https://ibb.co/gDsm029

I tried to change insets and added the following code, but it does not work. ViewUtils.doOnApplyWindowInsets(bottomAppBar) { view, insets, initialPadding -> insets!! }

XML layout: `<?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=“@android:color/darker_gray”> <FrameLayout android:layout_width="match_parent" android:layout_height="match_parent" android:layout_alignParentStart="true"/>

<com.google.android.material.bottomappbar.BottomAppBar
    android:id="@+id/bottomAppBar"
    android:layout_width="match_parent"
    android:layout_height="50dp"
    android:layout_gravity="bottom"
    app:fabAlignmentMode="center">

    <com.google.android.material.bottomnavigation.BottomNavigationView
        android:id="@+id/bottomNavigation"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:background="@android:color/transparent"
        app:labelVisibilityMode="unlabeled"
        app:menu="@menu/menu_nav" />

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

<com.google.android.material.floatingactionbutton.FloatingActionButton
    android:id="@+id/abCodeFloatingActionButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    app:layout_anchor="@id/bottomAppBar" />

</androidx.coordinatorlayout.widget.CoordinatorLayout>`

Android API version: 28

Material Library version: 1.2.0-alpha01 (before I used 1.1.0-apha02 and it was ok, but because of the bug connected with TextInputLayout cutout border when the hint is disabled, I moved to the last library version.)

Device: Samsung SM-A605FN (A6+)

[Orange1353]

You can work around the bug, if you add a background for BottomNavigationView:

background_transparent.xml

<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" > <solid android:color="#00000000" /> </shape>

[alisoleimani-android]

You can work around the bug, if you add a background for BottomNavigationView:

background_transparent.xml

<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" > <solid android:color="#00000000" /> </shape>

This solution worked for me, thank you my friend!