protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
canvas.getClipBounds(mRect);
final CategoryDataset dataset = createDataset();
final JFreeChart chart = createChart(dataset);
chart.draw(canvas, new Rectangle2D.Double(0, 0, mRect.width(), mRect.height()));
Paint p = new Paint();
p.setColor(Color.RED);
}
