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public void animateMarker(final Marker marker, final LatLng toPosition,
                              final boolean hideMarker)
    {
        final Handler handler = new Handler();
        final long start = SystemClock.uptimeMillis();
        Projection proj = map.getProjection();
        Point startPoint = proj.toScreenLocation(marker.getPosition());
        final LatLng startLatLng = proj.fromScreenLocation(startPoint);
        final long duration = 500;

        final Interpolator interpolator = new LinearInterpolator();

        handler.post(new Runnable()
        {
            @Override
            public void run()
            {
                long elapsed = SystemClock.uptimeMillis() - start;
                float t = interpolator.getInterpolation((float) elapsed
                        / duration);
                double lng = t * toPosition.longitude + (1 - t)
                        * startLatLng.longitude;
                double lat = t * toPosition.latitude + (1 - t)
                        * startLatLng.latitude;
                marker.setPosition(new LatLng(lat, lng));

                if (t < 1.0)
                {
                    // Post again 16ms later.
                    handler.postDelayed(this, 16);
                }
                else
                {
                    if (hideMarker)
                    {
                        marker.setVisible(false);
                    }
                    else
                    {
                        marker.setVisible(true);
                    }
                }
            }
        });
    }