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

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:orientation="vertical"
    app:layout_behavior="com.google.android.material.appbar.AppBarLayout$ScrollingViewBehavior">

    <code.name.monkey.retromusic.lyrics.LrcView
        android:id="@+id/lyricsView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</LinearLayout>