tests/DefaultStorageMonitoringCompanionApp/res/layout/activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    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:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:id="@+id/notification"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:minLines="10"
        android:textSize="24dp"
        android:textColor="#ff0000"
        android:text="Gathering data..."/>

</RelativeLayout>