Tusky/app/src/main/res/layout/activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<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/mainDrawerLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true">

    <androidx.coordinatorlayout.widget.CoordinatorLayout
        android:id="@+id/mainCoordinatorLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context="com.keylesspalace.tusky.MainActivity">

        <com.google.android.material.appbar.AppBarLayout
            android:id="@+id/appBar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:elevation="@dimen/actionbar_elevation"
            app:elevationOverlayEnabled="false">

            <androidx.appcompat.widget.Toolbar
                android:id="@+id/mainToolbar"
                style="@style/Widget.AppCompat.Toolbar"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                app:contentInsetStartWithNavigation="0dp"
                app:layout_scrollFlags="scroll|enterAlways"
                app:navigationContentDescription="@string/action_open_drawer" />

            <LinearLayout
                android:id="@+id/topNav"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal">

                <com.google.android.material.imageview.ShapeableImageView
                    android:id="@+id/topNavAvatar"
                    android:layout_width="36dp"
                    android:layout_height="36dp"
                    android:layout_gravity="center_vertical"
                    android:layout_marginStart="10dp"
                    android:layout_marginEnd="10dp"
                    android:background="@drawable/avatar_default"
                    app:shapeAppearance="@style/ShapeAppearance.Avatar" />

                <com.google.android.material.tabs.TabLayout
                    android:id="@+id/tabLayout"
                    style="@style/TuskyTabAppearance"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    app:tabGravity="fill"
                    app:tabMaxWidth="0dp"
                    app:tabMode="fixed" />
            </LinearLayout>

        </com.google.android.material.appbar.AppBarLayout>

        <androidx.viewpager2.widget.ViewPager2
            android:id="@+id/viewPager"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginBottom="?attr/actionBarSize"
            android:background="?attr/windowBackgroundColor"
            app:layout_behavior="@string/appbar_scrolling_view_behavior" />

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

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal">

                <com.google.android.material.imageview.ShapeableImageView
                    android:id="@+id/bottomNavAvatar"
                    android:layout_width="36dp"
                    android:layout_height="36dp"
                    android:layout_gravity="center_vertical"
                    android:layout_marginStart="10dp"
                    android:layout_marginEnd="10dp"
                    android:background="@drawable/avatar_default"
                    app:shapeAppearance="@style/ShapeAppearance.Avatar" />

                <com.google.android.material.tabs.TabLayout
                    android:id="@+id/bottomTabLayout"
                    android:layout_width="match_parent"
                    android:layout_height="?attr/actionBarSize"
                    app:tabGravity="fill"
                    app:tabIndicator="@null"
                    app:tabMode="fixed" />

            </LinearLayout>

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

        <com.google.android.material.floatingactionbutton.FloatingActionButton
            android:id="@+id/composeButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="@dimen/fabMargin"
            android:contentDescription="@string/action_compose"
            app:layout_anchor="@id/viewPager"
            app:layout_anchorGravity="bottom|end"
            app:srcCompat="@drawable/ic_create_24dp" />

        <include layout="@layout/item_status_bottom_sheet" />

        <ProgressBar
            android:id="@+id/progressBar"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:visibility="gone" />

    </androidx.coordinatorlayout.widget.CoordinatorLayout>

    <com.mikepenz.materialdrawer.widget.MaterialDrawerSliderView
        android:id="@+id/mainDrawer"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:fitsSystemWindows="true" />

</androidx.drawerlayout.widget.DrawerLayout>