[android help] How to keep map state on device rotation?

I have a nested fragment that i would like to maintain the state when the device orientation changed.

It is something like this: http://i.stack.imgur.com/FPE7q.png

I'm instantiate a mapView in the nested fragment and when the device is rotated the user must be in the same place where it was. How can I accomplish that?

Thank you

.

stackoverflow.comm