问如何在Android中绘制不同列数的分组条形图？

EN

List<String> xValues = ...; // "Shop1", "Shop2", "Shop3"

XAxis xAxis = chart.getXAxis();
xAxis.setValueFormatter(new MyValueFormatter(xValues));

// create 2 datasets 
BarDataSet set1 = new BarDataSet(valuesProduct1, "Product1"); //valuesProduct1 are the values corresponding to the shops, 
set1.setColor(Color.BLUE);

BarDataSet set2 = new BarDataSet(valuesProduct2, "Product2");
set2.setColor(Color.RED);

BarData data = new BarData(set1, set2);
chart.setData(data);
chart.groupBars(...); // available since release v3.0.0
chart.invalidate(); // refresh