Google Maps V2 in custom Fragment class.

private static View mView;
private static GoogleMap mMap;
private static Double latitude, longitude;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    if (container == null) {
        return null;
    }
    mView = (RelativeLayout) inflater.inflate(R.layout.fragment_harita, container, false);

    latitude = 26.78;
    longitude = 72.56;

    setUpMapIfNeeded();

    return mView;

public static void setUpMapIfNeeded() {
    // Do a null check to confirm that we have not already instantiated the map.
    if (mMap == null) {
        // Try to obtain the map from the SupportMapFragment.
        GoogleMap mGoogleMap = ((SupportMapFragment) getChildFragmentManager().findFragmentById(R.id.map)).getMap();
        // Check if we were successful in obtaining the map.
        if (mMap != null)
            setUpMap();
    }
}

private static void setUpMap() {
    // For showing a move to my loction button
    mMap.setMyLocationEnabled(true);
    // For dropping a marker at a point on the Map
    mMap.addMarker(new MarkerOptions().position(new LatLng(latitude, longitude)).title("My Home").snippet("Home Address"));
    // For zooming automatically to the Dropped PIN Location
    mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(latitude,
            longitude), 12.0f));
}