如何在MPAndroidChart中的饼图中显示标签

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

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

PieChart pieChart = findViewById(R.id.pieChart);

ArrayList<PieEntry> entries = new ArrayList<>();
entries.add(new PieEntry(25f, "标签1"));
entries.add(new PieEntry(35f, "标签2"));
entries.add(new PieEntry(40f, "标签3"));

PieDataSet dataSet = new PieDataSet(entries, "标签");

dataSet.setColors(ColorTemplate.COLORFUL_COLORS); // 设置饼图颜色
dataSet.setValueTextSize(12f); // 设置标签文字大小
dataSet.setValueTextColor(Color.WHITE); // 设置标签文字颜色

PieData data = new PieData(dataSet);
pieChart.setData(data);

pieChart.invalidate();