main.xml

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

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="0.60" 
        android:text="@string/t_some_text"
        />

    <Button
        android:id="@+id/quit_button_id"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/b_quit" />

</LinearLayout>