androidMultiOFActivityExample using main_layout.xml

There is a way to use the main_layout.xmlt using androidMultiOFActivityExample?
Now i’m using the androidMultiOFActivityExample, i’m able to program stuff from the ofActivity but when i place a button or something in main_layout.xml, it seems like that view is below, when i open the app or change the activity i can see the buttons i place in main_layout.xml in the back or maybe they just disappear , there is a way to show them above the OF view or show them?