Android MPAndroidChart xasis值显示大于1

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

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

List<Entry> entries = new ArrayList<>();
entries.add(new Entry(1, 10));
entries.add(new Entry(2, 20));
entries.add(new Entry(3, 30));
entries.add(new Entry(4, 40));

LineDataSet dataSet = new LineDataSet(entries, "Data");
LineData lineData = new LineData(dataSet);

chart.setData(lineData);

public class CustomXAxisValueFormatter implements XAxisValueFormatter {
    @Override
    public String getFormattedValue(float value, AxisBase axis) {
        // 在这里自定义x轴的值显示
        if (value == 1) {
            return "One";
        } else if (value == 2) {
            return "Two";
        } else if (value == 3) {
            return "Three";
        } else if (value == 4) {
            return "Four";
        } else {
            return "";
        }
    }
}

XAxis xAxis = chart.getXAxis();
xAxis.setValueFormatter(new CustomXAxisValueFormatter());