[DeveloperDave]

All the examples I see are typically 1-screen examples, and that example extends MainScreen.

Question #1:
Now that I'm writing an app with many screens, should they all be extending MainScreen, or FullScreen, or what exactly?

(I feel like I read somewhere that there should be only 1 MainScreen in your app - is that right?)

Question #2:
When I tried to change my screens to inherit from MainScreen to FullScreen, the menu functionality I had put in makeMenu() no longer worked -- the BB menu button and the context menu would not display, even though I overrode makeMenu().

PHP Code:

    /**
     * Set up the menu items.
     */
    public void makeMenu(Menu menu, int instance)
    {        
        MenuItem mnuDoIt = new MenuItem("Do it!", 100, 10) {
            public void run()
            {                
                RemoteApp.getInstance().pushScreen( new DoItScreen() );
            }
        };
        menu.add(mnuDoIt);
        
        super.makeMenu(menu, instance);
     } 


Thanks folks! Sorry I'm such a newb.

[Dougsg38p]

MainScreen provides some default functionality that you won't find in FullScreen.

There is no reason not to use MainScreen for all of your screens, unless some of the default functionality isn't what you want.