RetroMusicPlayer/app/src/main/res/layout-land/activity_settings.xml

<?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"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.google.android.material.appbar.AppBarLayout
        android:id="@+id/appBarLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:elevation="0dp"
        app:elevation="0dp">

        <com.google.android.material.appbar.CollapsingToolbarLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:titleEnabled="false">

            <androidx.appcompat.widget.Toolbar
                android:id="@+id/toolbar"
                style="@style/Toolbar"
                app:layout_collapseMode="pin"
                app:navigationIcon="@drawable/ic_keyboard_backspace_black_24dp"
                app:title="">

                <TextView
                    android:id="@+id/settingsTitle"
                    style="@style/BigTitleTextAppearance"
                    android:text="@string/action_settings" />

            </androidx.appcompat.widget.Toolbar>
        </com.google.android.material.appbar.CollapsingToolbarLayout>

        <View
            android:layout_width="match_parent"
            android:layout_height="1dp"
            android:background="?dividerColor" />
    </com.google.android.material.appbar.AppBarLayout>

    <LinearLayout
        android:id="@+id/background"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <FrameLayout
            android:id="@+id/contentFrame"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1" />

        <FrameLayout
            android:id="@+id/detailContentFrame"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1" />
    </LinearLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>