sample/src/main/res/layout/control_bar_scale.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"
    android:id="@+id/scaleContainer"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:visibility="gone">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="64dp"
        android:layout_gravity="center_vertical"
        android:background="@android:color/white"
        android:gravity="center_vertical"
        android:orientation="horizontal">

        <TextView
            android:id="@+id/scaleText"
            android:layout_width="64dp"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:textColor="#222222"
            android:textSize="14sp"/>

        <androidx.appcompat.widget.AppCompatSeekBar
            android:id="@+id/scaleSeekBar"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginRight="8dp"
            android:layout_weight="1"/>

        <ImageButton
            android:id="@+id/closeScaleButton"
            android:layout_width="32dp"
            android:layout_height="32dp"
            android:layout_marginRight="16dp"
            android:background="?attr/selectableItemBackgroundBorderless"
            app:srcCompat="@drawable/ic_close"/>
    </LinearLayout>

    <View
        android:layout_width="match_parent"
        android:layout_height="@dimen/divider_height"
        android:layout_gravity="bottom"
        android:background="@color/divider"/>
</FrameLayout>