PlayerAndroid/app/src/main/res/layout/fragment_full.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout 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:clickable="true"
    android:focusable="true">

    <View
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="?attr/colorSurface" />

    <fragment
        android:id="@+id/playerAlbumCoverFragment"
        android:name="code.name.monkey.retromusic.fragments.player.PlayerAlbumCoverFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:layout="@layout/fragment_album_full_cover" />

    <View
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#C0000000" />


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom"
        android:orientation="vertical">

        <fragment
            android:id="@+id/playbackControlsFragment"
            android:name="code.name.monkey.retromusic.fragments.player.full.FullPlaybackControlsFragment"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="bottom"
            tools:layout="@layout/fragment_full_player_controls" />


    </LinearLayout>

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

        <FrameLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

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

        <com.google.android.material.appbar.MaterialToolbar
            android:id="@+id/playerToolbar"
            style="@style/Toolbar"
            android:navigationIcon="@drawable/ic_keyboard_arrow_down_black_24dp"
            app:navigationIcon="@drawable/ic_keyboard_arrow_down_black_24dp">

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content">

                <com.google.android.material.textview.MaterialTextView
                    android:id="@+id/nextSongLabel"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:alpha="0.75"
                    android:ellipsize="end"
                    android:gravity="center"
                    android:maxLines="1"
                    android:paddingStart="16dp"
                    android:paddingEnd="16dp"
                    android:text="@string/next_song"
                    android:textAppearance="@style/TextViewSubtitle2"
                    android:textColor="@color/md_white_1000"
                    app:layout_constraintEnd_toStartOf="@+id/artistImage"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toTopOf="parent" />

                <com.google.android.material.textview.MaterialTextView
                    android:id="@+id/nextSong"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="4dp"
                    android:ellipsize="end"
                    android:gravity="center"
                    android:paddingStart="16dp"
                    android:paddingEnd="16dp"
                    android:singleLine="true"
                    android:textAppearance="@style/TextViewSubtitle1"
                    android:textColor="@color/md_white_1000"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintEnd_toStartOf="@+id/artistImage"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toBottomOf="@+id/nextSongLabel"
                    tools:text="@tools:sample/lorem/random" />

                <code.name.monkey.retromusic.views.CircularImageView
                    android:id="@+id/artistImage"
                    android:layout_width="36dp"
                    android:layout_height="36dp"
                    android:layout_gravity="end"
                    android:layout_marginEnd="8dp"
                    android:elevation="10dp"
                    app:civ_border="false"
                    app:civ_shadow="false"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintTop_toTopOf="parent"
                    app:srcCompat="@drawable/default_artist_art" />
            </androidx.constraintlayout.widget.ConstraintLayout>

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

        <FrameLayout
            android:id="@+id/player_lyrics"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:alpha="0"
            android:clipToPadding="false"
            android:elevation="20dp"
            android:padding="16dp"
            android:visibility="gone"
            tools:visibility="visible">

            <TextView
                android:id="@+id/player_lyrics_line1"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="center_vertical"
                android:shadowColor="@color/md_black_1000"
                android:shadowRadius="4"
                android:textAlignment="center"
                android:textColor="@color/md_white_1000"
                android:textSize="22sp"
                android:visibility="gone" />

            <TextView
                android:id="@+id/player_lyrics_line2"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="center_vertical"
                android:shadowColor="@color/md_black_1000"
                android:shadowRadius="4"
                android:textAlignment="center"
                android:textColor="@color/md_white_1000"
                android:textSize="22sp" />

        </FrameLayout>

    </LinearLayout>
</FrameLayout>