Drill-down stacked bar chart in android

Drill-down stacked bar chart in android

Is there any chart libraries having with drill-down? (Clickable event).I
already tried in Achartengine with onTouch but i can't able to get the
SeriesSelection,it's always throw null. Code Snippet i used:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.barchart_show);
barLayout = (LinearLayout) findViewById(R.id.barchart_main);
stBarChart = new StackedBarChart();
List<double[]> values = new ArrayList<double[]>();
values.add(new double[] { 14230, 12300, 14240, 15244, 15900,
19200, 22030, 21200, 19500, 15500,
12600, 14000 });
values.add(new double[] { 5230, 7300, 9240, 10540, 7900, 9200,
12030, 11200, 9500, 10500,
11600, 13500 });
barChartView = stBarChart.execute(values, getApplicationContext());
if(barChartView!=null) {
barChartView.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
SeriesSelection seriesSelection =
barChartView.getCurrentSeriesAndPoint();
double[] xy = barChartView.toRealPoint(0);
if (seriesSelection == null) {
Toast.makeText(BarChartShow.this, "No chart element
was clicked", Toast.LENGTH_SHORT)
.show();
} else {
Toast.makeText(
BarChartShow.this,
"Chart element in series index " +
seriesSelection.getSeriesIndex()
+ " data point index " +
seriesSelection.getPointIndex() + " was
clicked"
+ " closest point value X=" +
seriesSelection.getXValue() + ", Y=" +
seriesSelection.getValue()
+ " clicked point value X=" + (float) xy[0] +
", Y=" + (float) xy[1],
Toast.LENGTH_SHORT).show();
}
return true;
}
});
barLayout.addView(barChartView, new
LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
}
}
public GraphicalView execute(List values,Context context) {
String[] titles = new String[] { "2008", "2007" };
int[] colors = new int[] { Color.BLUE, Color.CYAN };
XYMultipleSeriesRenderer renderer = buildBarRenderer(colors);
renderer.setOrientation(Orientation.VERTICAL);
setChartSettings(renderer, "Monthly sales in the last 2 years",
"Month", "Units sold", 0.5,
12.5, 0, 24000, Color.GRAY, Color.LTGRAY);
renderer.getSeriesRendererAt(0).setDisplayChartValues(true);
renderer.getSeriesRendererAt(1).setDisplayChartValues(true);
//renderer.getSeriesRendererAt(2).setDisplayChartValues(true);
renderer.setXLabels(12);
renderer.setYLabels(10);
renderer.setXLabelsAlign(Align.LEFT);
renderer.setYLabelsAlign(Align.LEFT);
renderer.setPanEnabled(true, false);
// renderer.setZoomEnabled(false);
renderer.setZoomRate(1.1f);
renderer.setBarSpacing(0.5f);
renderer.setClickEnabled(true);
barChartView = ChartFactory.getBarChartView(context,
buildBarDataset(titles, values),
renderer, Type.STACKED);
return barChartView;
}