How can one build multiple UI layers with flex and flash?

How can one build multiple UI layers with flex开发者_运维技巧 and flash? Note, i use amfphp framework for my back end.

The backend shouldn't matter.

It really depends what you mean by multiple layers. Many people use a ViewStack to layer views on top of each other. The nature of a ViewStack is that only one view is shown at once.

A TabNavigator is a similar control; but comes with built in navigation.