RetroMusicPlayer/app/src/main/res/layout/fragment_plain_player.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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="?attr/colorSurface"
    android:clickable="true"
    android:focusable="true">

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

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

    <LinearLayout
        android:id="@+id/titleContainer"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:clickable="false"
        android:orientation="vertical"
        android:padding="16dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/status_bar">

        <com.google.android.material.textview.MaterialTextView
            android:id="@+id/title"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:singleLine="true"
            android:textAppearance="@style/TextViewHeadline6"
            android:textStyle="bold"
            tools:ignore="MissingPrefix"
            tools:text="Title" />

        <com.google.android.material.textview.MaterialTextView
            android:id="@+id/text"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:clickable="true"
            android:ellipsize="end"
            android:focusable="true"
            android:maxLines="1"
            android:paddingTop="8dp"
            tools:text="Text" />
    </LinearLayout>

    <androidx.fragment.app.FragmentContainerView
        android:id="@+id/playerAlbumCoverFragment"
        android:name="code.name.monkey.retromusic.fragments.player.PlayerAlbumCoverFragment"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHeight_percent="0.5"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/titleContainer" />

    <androidx.fragment.app.FragmentContainerView
        android:id="@+id/playbackControlsFragment"
        android:name="code.name.monkey.retromusic.fragments.player.plain.PlainPlaybackControlsFragment"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintBottom_toTopOf="@id/playerToolbar"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/playerAlbumCoverFragment"
        tools:layout="@layout/fragment_player_playback_controls" />

    <com.google.android.material.appbar.MaterialToolbar
        android:id="@+id/playerToolbar"
        style="@style/Toolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="0"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/playbackControlsFragment"
        app:navigationIcon="@drawable/ic_keyboard_arrow_down_black" />
</androidx.constraintlayout.widget.ConstraintLayout>