RetroMusicPlayer/app/src/main/res/layout/activity_playing_queue.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"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

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

        <com.google.android.material.appbar.CollapsingToolbarLayout
            android:id="@+id/collapsing_toolbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layout_scrollFlags="scroll|enterAlways"
            app:titleEnabled="false">


            <androidx.appcompat.widget.Toolbar
                android:id="@+id/toolbar"
                style="@style/Toolbar48"
                app:layout_collapseMode="pin"
                app:title=""
                tools:ignore="UnusedAttribute">

                <TextView
                    android:id="@+id/title"
                    style="@style/BigTitleTextAppearance"
                    android:text="@string/queue" />

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

        <TextView
            android:id="@+id/player_queue_sub_header"
            android:layout_width="match_parent"
            android:layout_height="48dp"
            android:gravity="center_vertical"
            android:paddingLeft="16dp"
            android:paddingRight="16dp"
            android:text="@string/up_next"
            android:textAppearance="@style/TextAppearance.AppCompat.Body2" />

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

    <FrameLayout
        android:id="@+id/fragment_container"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>