如何为MPAndroidChart LineChart设置值标签与行之间的填充

implementation 'com.github.PhilJay:MPAndroidChart:v3.1.0'

<com.github.mikephil.charting.charts.LineChart
    android:id="@+id/lineChart"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

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

LineDataSet dataSet = new LineDataSet(entries, "Data Set 1");
dataSet.setColor(Color.RED); // 设置线条颜色
dataSet.setValueTextColor(Color.BLACK); // 设置值标签颜色

class MyFillFormatter implements IFillFormatter {
    @Override
    public float getFillLinePosition(ILineDataSet dataSet, LineDataProvider dataProvider) {
        return dataProvider.getYChartMin();
    }
}

dataSet.setFillFormatter(new MyFillFormatter());

LineData lineData = new LineData(dataSet);
lineChart.setData(lineData);

lineChart.invalidate();