Pie Chart Drawing in Android [closed]

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This is the code I have used for the chart - it is not displaying properly:

RectF rectf = new RectF (10, 10, 200, 200);
Paint paint = new Paint();

for(int i=0;i<list.length;i++) {
  if (i == 0) {
    paint.setColor(COLORS[i]);
    canvas.drawArc(rectf, 0, list_degree[i], true, paint);
  } else {
    paint.setColor(COLORS[i]);
    canvas.drawArc(rectf, (list_degree[i-1]), (list_degree[i]), true, paint);
  }
}

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May be you should try some charting libraries which will give you a Nice look of Charts something like achartengine,flot graph etc