package com.example.yangenneng0.myapplication.viewUI; import com.github.mikephil.charting.data.Entry; import com.github.mikephil.charting.formatter.IValueFormatter; import com.github.mikephil.charting.utils.ViewPortHandler; public class MyValueFormatter implements IValueFormatter { @Override public String getFormattedValue(float value, Entry entry, int dataSetIndex, ViewPortHandler viewPortHandler) { return StringUtils.double2String(value, 2); } }