RetroMusicPlayer/app/src/main/res/layout/activity_lock_screen.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"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/root_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

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

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

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:gravity="center_vertical"
        android:orientation="vertical"
        tools:ignore="UselessParent">

        <fragment
            android:id="@+id/playback_controls_fragment"
            android:name="code.name.monkey.retromusic.fragments.player.lockscreen.LockScreenPlayerControlsFragment"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            tools:layout="@layout/fragment_lock_screen_playback_controls" />
    </LinearLayout>


    <code.name.monkey.retromusic.views.WidthFitSquareLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="0">

        <com.google.android.material.card.MaterialCardView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginStart="16dp"
            android:layout_marginEnd="16dp"
            android:layout_marginBottom="16dp"
            app:cardCornerRadius="8dp"
            app:cardElevation="8dp">

            <ImageView
                android:id="@+id/image"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:contentDescription="TODO"
                android:scaleType="centerCrop"
                tools:srcCompat="@tools:sample/backgrounds/scenic[0]" />

        </com.google.android.material.card.MaterialCardView>
    </code.name.monkey.retromusic.views.WidthFitSquareLayout>

    <TextView
        android:id="@+id/slide"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="0"
        android:gravity="center"
        android:padding="16dp"
        android:text="@string/swipe_to_unlock" />
</LinearLayout>