Rotating Map in Direction Moving in Android

I don't know if I am just searching for the answer using the wrong set of words or what but I am trying to make a map app in Android that will show and track your location. Which works just fin开发者_JS百科e however, I would like to add in the functionality to make it so that the top of the map is the direction you are moving rather than North. What do I need to do to make this happen?

Thanks