使用自定义valueformatter

class DateValueFormatter extends ValueFormatter {
    private SimpleDateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy");
    private List<Date> dateList;

    public DateValueFormatter(List<Date> dateList) {
        this.dateList = dateList;
    }

    @Override
    public String getAxisLabel(float value, AxisBase axis) {
        int axisValue = (int) value;
        if (axisValue >= 0 && axisValue < dateList.size()) {
            return dateFormat.format(dateList.get(axisValue));
        } else {
            return "";
        }
    }
}

并设置xaxis值格式化程序

chart.getXAxis().setValueFormatter(new DateValueFormatter(datelist));