<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <FrameLayout
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
    <RelativeLayout
        android:id="@+id/progressBarOverlay"
        android:visibility="gone"
        android:clickable="true"
        android:background="@color/overlay_grey"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <ProgressBar
            android:id="@+id/progressBar"
            android:indeterminate="true"
            android:layout_centerInParent="true"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </RelativeLayout>
</RelativeLayout>