Orientation strategy for mobile. Best practice?

Question

Hi all.
What's the best way to handle orientation changes on a mobile device when you have several child movies loaded in the background?
I'm thinking:
1. Each child movie have it's own listener for an orientation change. (calls function to adjust graphics as needed so they are ready when the movie is added to stage)
or
2. One primary listener on the main stage which the child movies respond to.
Thoughts? Am I way off-base on this?
Thanks!
JP
PS. Don't think this matters, but just in case, the app is for iOS only.

Answer 1

It's not difficult to make your own event, which you can use custom information in it. I prefer this method.
Here's a full example of a custom event I use all the time called AppEvent:
package
     import flash.events.Event;
     public class AppEvent extends Event
          public static const APP_EVENT:String = "appevent";
          public var params:Object;  // where you stick your custom goodies
          public function AppEvent(type:String, params:Object, bubbles:Boolean = false, cancelable:Boolean = false)
               super(type, bubbles, cancelable);
               this.params = params;
          public override function clone():Event
               return new AppEvent(type, this.params, bubbles, cancelable);
          public override function toString():String
               return formatToString("AppEvent", "params", "type", "bubbles", "cancelable");
To dispatch this event with a piece of data, you'd do this:
this.dispatchEvent(new AppEvent(AppEvent.APP_EVENT, {customVarA:"something",customVarB:"something"}));
In that example I sent "customVarA" and "customVarB" both set to the string "something". I'd read it like this:
function someHandler(e:AppEvent):void
     trace("A: " + e.params.customVarA + ", B: " + e.params.customVarB);
It sends an object through called e.params. You set whatever objects you want inside it.
To add a listener from a child clip just use the .parent property.
e.g.
this.parent.addEventListener(AppEvent.APP_EVENT, someHandler, false, 0, true);
Any time the parent dispatches the event the child will get it, with whatever custom parameters you need.