Change color of the touched column

Hi,

I’m using scichart for android and trying to change the color of the column that was hit by touch. I have successfully identified which index of the data series that was hit. I’ve looked all over the android documentation but does not find an answer or example for this. This is my onTouch function:

@Override
    public boolean onTouch(View view, MotionEvent motionEvent) {
        SciChartSurface surface = (SciChartSurface) view;
        touchPoint.set(motionEvent.getX(), motionEvent.getY());
        surface.translatePoint(touchPoint, surface.getRenderableSeriesArea());

        for (IRenderableSeries renderableSeries : surface.getRenderableSeries()) {
            renderableSeries.hitTest(hitTestInfo, touchPoint.x, touchPoint.y, 30);
            if (hitTestInfo.isHit) {
                Double yValue = consumptionDataSeries.getYValues().get(hitTestInfo.dataSeriesIndex);
                // Todo: Show a text annotation and color the column differently
                Toast.makeText(this.getContext(), yValue.toString(), Toast.LENGTH_SHORT).show();
            }
        }
        return true;
    }

What should I do next?