Android : execute class from included layout

Within my layout I have set a Include Other Layout. this layout schould in his turn show a listview with items loaded from the web (my webserver)

the only problem is: the items don't load in because the class that holds the code to load the items isnt called on because im using a Include Other Layout meaning only the layout is called and not the functional code from any .java files (classes)

leaving me with a blank page...

is there a way to make a call upon the class containing the code for the layout i have included?