RetroMusicPlayer/app/src/main/res/layout/sliding_music_panel_layout.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:id="@+id/mainContent"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <!--<com.sothree.slidinguppanel.SlidingUpPanelLayout xmlns:sothree="http://schemas.android.com/apk/res-auto"
        android:id="@+id/slidingLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="bottom"
        sothree:umanoOverlay="false"
        sothree:umanoPanelHeight="0dp"
        sothree:umanoScrollableView="@+id/recycler_view"
        sothree:umanoShadowHeight="0dp">-->

    <FrameLayout
        android:id="@+id/mainContentFrame"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1" />

    <com.google.android.material.card.MaterialCardView
        android:id="@+id/slidingPanel"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:behavior_hideable="false"
        app:behavior_peekHeight="0dp"
        app:cardElevation="0dp"
        app:cardUseCompatPadding="false"
        app:layout_behavior="com.google.android.material.bottomsheet.BottomSheetBehavior">


        <FrameLayout
            android:id="@+id/playerFragmentContainer"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

        <fragment
            android:id="@+id/miniPlayerFragment"
            android:name="code.name.monkey.retromusic.fragments.MiniPlayerFragment"
            android:layout_width="match_parent"
            android:layout_height="48dp"
            tools:layout="@layout/fragment_mini_player" />


    </com.google.android.material.card.MaterialCardView>
    <!-- </com.sothree.slidinguppanel.SlidingUpPanelLayout>-->

    <code.name.monkey.retromusic.views.BottomNavigationBarTinted
        android:id="@+id/bottomNavigationView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom"
        android:background="?colorSecondary"
        android:elevation="0dp"
        android:visibility="gone"
        app:itemIconTint="@drawable/bottom_navigation_item_colors"
        app:itemTextAppearanceActive="@style/BottomSheetItemTextAppearanceActive"
        app:itemTextAppearanceInactive="@style/BottomSheetItemTextAppearanceInactive"
        app:itemTextColor="@drawable/bottom_navigation_item_colors"
        app:labelVisibilityMode="labeled"
        app:menu="@menu/bottom_navigation_main"
        tools:layout_height="56dp" />

</androidx.coordinatorlayout.widget.CoordinatorLayout>