Android : programmatically adding a layout to phonegap as banner

i have layout like this

<ir.adad.AdView
        android:id="@+id/ad"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        token="hadi" />

and i want to add it to my phone-gap application onCreate method. so far i have written the code and extend Droidgap but i don't know how to turn my above code to java code for adding this layout to my app