<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="80dp"
        android:textSize="30dp"
        android:text="here comes the barcode"
        android:layout_marginTop="20dp"
        android:layout_marginBottom="50dp"
        android:id="@+id/textView1" />
    <TextView
        android:layout_width="match_parent"
        android:layout_height="80dp"
        android:textSize="30dp"
        android:text="and here the symbology"
        android:layout_marginTop="20dp"
        android:layout_marginBottom="50dp"
        android:id="@+id/textView2" />
</LinearLayout>