TubeLab-App-Android/app/src/main/res/layout/activity_main.xml

<?xml version="1.0" encoding="utf-8"?><!--
    Copyright 2020 Thomas Schneider

    This file is a part of TubeLab

    This program is free software; you can redistribute it and/or modify it under the terms of the
    GNU General Public License as published by the Free Software Foundation; either version 3 of the
    License, or (at your option) any later version.

    TubeLab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
    the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
    Public License for more details.

    You should have received a copy of the GNU General Public License along with TubeLab; if not,
    see <http://www.gnu.org/licenses>.
-->

<androidx.drawerlayout.widget.DrawerLayout 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:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:openDrawer="start">

    <androidx.coordinatorlayout.widget.CoordinatorLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".MainActivity">

        <com.google.android.material.appbar.AppBarLayout
            android:id="@+id/appBar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
           >
            <androidx.appcompat.widget.Toolbar
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                android:background="?colorPrimary"
                android:theme="@style/ThemeOverlay.AppCompat.Dark"
                app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
                app:layout_scrollFlags="scroll|enterAlways"
                android:fitsSystemWindows="true"
                />
        </com.google.android.material.appbar.AppBarLayout>


        <FrameLayout
            app:layout_behavior="@string/appbar_scrolling_view_behavior"
            android:id="@+id/nav_host_fragment"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginBottom="?attr/actionBarSize"
            />
        <com.google.android.material.bottomnavigation.BottomNavigationView
            android:id="@+id/nav_view"
            android:layout_gravity="bottom"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginStart="0dp"
            android:layout_marginEnd="0dp"
            android:background="?android:attr/windowBackground"
            app:itemIconTint="@color/bottom_nav_color"
            app:itemTextColor="@color/bottom_nav_color"
            />
    </androidx.coordinatorlayout.widget.CoordinatorLayout>

</androidx.drawerlayout.widget.DrawerLayout>