MPAndroidChart。如何在单个图表上使用不同数据类型的数据集？

LineChart chart = findViewById(R.id.chart);

List<Entry> lineEntries = new ArrayList<>();
lineEntries.add(new Entry(0, 10));
lineEntries.add(new Entry(1, 20));
lineEntries.add(new Entry(2, 30));
LineDataSet lineDataSet = new LineDataSet(lineEntries, "折线图数据集");

List<BarEntry> barEntries = new ArrayList<>();
barEntries.add(new BarEntry(0, 50));
barEntries.add(new BarEntry(1, 40));
barEntries.add(new BarEntry(2, 30));
BarDataSet barDataSet = new BarDataSet(barEntries, "柱状图数据集");

lineDataSet.setColor(Color.RED);
lineDataSet.setLineWidth(2f);
lineDataSet.setDrawCircles(true);
lineDataSet.setCircleColor(Color.RED);
lineDataSet.setCircleRadius(4f);
lineDataSet.setValueTextSize(12f);

barDataSet.setColor(Color.BLUE);
barDataSet.setValueTextSize(12f);

List<ILineDataSet> dataSets = new ArrayList<>();
dataSets.add(lineDataSet);
dataSets.add(barDataSet);

LineData data = new LineData(dataSets);

chart.setData(data);
chart.invalidate();