I'm building a Flex application with about a dozen different screens. There's relationships between the screens such as when on screen 1, I click on something that is an input to screen 2. Then I might bring up screen 3, then go back to 2 and then bring up screen 4. To make it clear to the user where they are in the application, we'd like to implement a breadcrumbs concept where the user gets to see which screen they are and be able to navigate back up the trail they came from.
So in thinking about how to implement this, it seems to me that I should have a stack of views. Views get pushed onto the stack, then popped off. The breadcrumbs would be a visual depiction of that stack, eg: Home >> Alert 123 >> Customer B Summary >> Customer B Detail
Having said this, I'm trying to come up with a pattern for how to implement this. The obvious starting point would be a mx:ViewStack as a container. Then I'd add views as children and make them visible - effectively "pushing" then onto the view stack. Then to close that screen I'd remove them as children to "pop" them off. This would have to update some stack data structure somewhere that the breadcrumbs would be able to see. In fact the breadcrumbs themselves can modify the stack when the user clicks on an item in the breadcrumbs to jump to.
In any case, I'm going to be working on this but just curious if anybody has anything to share around any patterns/frameworks you've used to manage multiple screens and how they come up and go away and navigate between them that I can use for some ideas.
Seems like a simple thing but in practice it's not always straight-forward.