Global Event Listeners for all Views in a ViewNavigatorApplication

Question

Hello,
As the subject states, I have a ViewNavigatorApplication and I am trying to set up a "global" event listener for all views. Which I am able to do, however I am having problems...
In my first view, I assign this listener:
NativeApplication.nativeApplication.addEventListener(KeyboardEvent.KEY_DOWN, handleKeys);
And I also have this function:
public function handleKeys(event:KeyboardEvent):void {
     if (event.keyCode == Keyboard.MENU) {
                    trace("menu pressed");
                    navigator.pushView(MainMenuView);
This works fine from the first view. But when I switch views, I get an exception on pushView (navigator is null). I think I understand why, so what is the best practice for something like this? How can I get access to the spark component navigator from that function when called from a different view? Or is there a better way to go about this?
Thank you!

Answer 1

Try putting the code in the main mxml:
<?xml version="1.0" encoding="utf-8"?>
<s:ViewNavigatorApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
    xmlns:s="library://ns.adobe.com/flex/spark"
    xmlns:mx="library://ns.adobe.com/flex/mx"
    firstView="home"
    applicationComplete="init()" >
    <fx:Script>
        <![CDATA[
            private function init():void {
                this.addEventListener(KeyboardEvent.KEY_DOWN, handleKeys);
            private function handleKeys(event:KeyboardEvent):void {