Google Map API V2 - How do I keep a marker in the center of the screen while user is scrolling the map?

Question

Google Map API V2 - How do I keep a marker in the center of the screen while user is scrolling the map ?

My purpose is to let user choose a location. I use the follo

Answer 1

Get a marker reference when call addMarker. After when the camera moves, moves the marker to the target position returned by the camera.

private Marker marker;

public void onMapReady(final GoogleMap googleMap) {
        LatLng sydney = new LatLng(-34, 151);
        MarkerOptions markerOptions = new MarkerOptions().position(sydney).title("Marker in Sydney");
        marker = googleMap.addMarker(markerOptions);
        googleMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
        googleMap.setOnCameraMoveListener(new GoogleMap.OnCameraMoveListener() {
            @Override
            public void onCameraMove() {
                final LatLng target = googleMap.getCameraPosition().target;
                marker.setPosition(target);
            }
        });
}