I have lat&long values from database.how to display markers based on lat &long values using android google map api v2.In original android google maps,we display mark
You have to use the method GoogleMap.addMarker(MarkerOptions);
I've explained this in a tutorial on my blog:
http://bon-app-etit.blogspot.be/2012/12/add-informationobject-to-marker-in.html
On this blog, you'll find some more posts concerning the new Maps API: