MPAndroidChart.使用 XAxis 在网格背景的一行中显示值

Question

我不知道如何准确地描述这个问题。它现在显示如下：https://i.stack.imgur.com/wW5W8.png

条形图中的值和 XAxis 不在行的中心。 我需要这样的东西：https://i.stack.imgur.com/v0aU2.png

如何实现这一点？

public void setDataForChart() {
barChart.setDrawBarShadow(false);
barChart.setDrawValueAboveBar(true);
barChart.setMaxVisibleValueCount(50);
barChart.setPinchZoom(false);
barChart.setDrawGridBackground(true);
barChart.setExtraOffsets(0, 0, 0, 20);
barChart.setDescription(description);
ArrayList<BarEntry> barEntries = new ArrayList<>();
barEntries.add(new BarEntry(1, 41f));
barEntries.add(new BarEntry(2, 42f));
barEntries.add(new BarEntry(3, 43f));
barEntries.add(new BarEntry(4, 44f));
barEntries.add(new BarEntry(5, 45f));
barEntries.add(new BarEntry(6, 46f));
barEntries.add(new BarEntry(7, 47f));
barEntries.add(new BarEntry(8, 48f));
barEntries.add(new BarEntry(9, 49f));
barEntries.add(new BarEntry(10, 50f));
barEntries.add(new BarEntry(11, 51f));
barEntries.add(new BarEntry(12, 52f));
BarDataSet barDataSet = new BarDataSet(barEntries, "Data Set1");
barDataSet.setColors(ColorTemplate.COLORFUL_COLORS);
BarData data1 = new BarData(barDataSet);
data1.setBarWidth(0.7f);
barChart.setData(data1);
barChart.notifyDataSetChanged();
String[] months = new String[]{"Янв", "Фев", "Мар", "Апр", "Май", "Июн", "Июл", "Авг", "Сен", "Окт", "Ноя", "Дек"};
XAxis xAxis = barChart.getXAxis();
xAxis.setValueFormatter(new MyXAxisValueFormatter(months));
xAxis.setPosition(XAxis.XAxisPosition.TOP);
xAxis.setGranularity(1);
xAxis.setCenterAxisLabels(true);
xAxis.setLabelCount(12);
YAxis yAxis = barChart.getAxisLeft();
yAxis.setEnabled(false);
}
public class MyXAxisValueFormatter implements IAxisValueFormatter {
public String[] values;
public MyXAxisValueFormatter(String[] values) {
this.values = values;
}
@Override
public String getFormattedValue(float value, AxisBase axis) {
if (values.length > (int) value) {
return values[(int) value];
} else {
return "";
}
}
}

Answer 1

您可以在删除或设置0后检查一下，以代替下面行中的20。

barChart.setExtraOffsets(0, 0, 0, 20);