Android Tutorial: Adding buttons in the action bar part1

android_action_bar.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
    <item
        android:id="@+id/itemAdd"
        android:icon="@drawable/add"
        android:showAsAction="ifRoom|withText"
        android:title="@string/btnAdd">
    </item>
    <item
        android:id="@+id/itemRefresh"
        android:icon="@drawable/refresh"
        android:showAsAction="ifRoom|withText"
        android:title="@string/btnRefresh">
    </item>
    <item
        android:id="@+id/itemHelp"
        android:title="@string/btnHelp">
    </item>
</menu>