I got a small app that use the Direction Service feature of Google Map. It is working well, I can change routes, but I have a small problem, where a user could go back to a list of markers after tracing a route.
I can't find a way to delete routes with google map. For markers I store them and do
if you are using DirectionsRenderer to display the routes, you can call setMap(null) on it too. That way you delete the displayed route.