@Override
public boolean onOptionsItemSelected(MenuItem item) {

    if(item.getItemId() == R.id.action_addItem) {

        invalidateOptionsMenu();

        canAddMarker = true;



            mMap.setOnMapClickListener(new OnMapClickListener() {

                @Override
                public void onMapClick(LatLng point) {

                if(canAddMarker){

                    mMap.animateCamera(CameraUpdateFactory.newLatLng(point));

                    mMap.addMarker(new MarkerOptions().position(point).title("Test Title").snippet("Test snippet"));


                }


                }
            });

    else {

               //Code to disable listener
    }

    }