erpsuiteandroid/ApexDrivers/app/src/main/res/layout/option_group_header.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                android:layout_width="match_parent"
                android:layout_height="30dp">

    <TextView
        android:id="@+id/option_group_header_title_tv"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_margin="5dp"
        android:textSize="15sp"
        />

</RelativeLayout>