年龄计算用户从日期选择器中选择DOB [英] Age Calculate when user select DOB from date picker

问题描述

• 当用户从日期选择器中选择DOB时，我想计算年龄



• 日期选择器代码与所有地方相同

• I want to calculate age , when user select DOB from date picker

• Date picker code is same as everywhere

我的日期格式：

1990/06/07（获取此格式）

1990/06/07 (getting this format)

我需要计算年龄，即当前日期 - DOB
2016-1990 = 26

I need to calculate age i.e current date - DOB 2016-1990 = 26

代码：

public class SelectDateFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener {
        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState) {
            final Calendar calendar = Calendar.getInstance();
            int yy = calendar.get(Calendar.YEAR);
            int mm = calendar.get(Calendar.MONTH);
            int dd = calendar.get(Calendar.DAY_OF_MONTH);

           int a = yy - calendar.get(Calendar.YEAR);
            Log.e("999999", String.valueOf(a));
            return new DatePickerDialog(getActivity(), this, yy, mm, dd);
        }

• 它给我0。这个问题



推荐答案

你可以使用 JodaTime 库，以获得有效的结果。

You can use JodaTime library for efficient results.

    String dateStr = "04/05/2010";

    SimpleDateFormat curFormater = new SimpleDateFormat("dd/MM/yyyy");
    Date dateObj = null;
    try {
        dateObj = curFormater.parse(dateStr);
    } catch (ParseException e) {
        e.printStackTrace();
    }


    Period age = calcDiff(dateObj,new Date());
    Toast.makeText(this, PeriodFormat.wordBased().print(age),Toast.LENGTH_SHORT).show();

并使用此方法获取差异

  private Period calcDiff(Date startDate,Date endDate)
  {
    DateTime START_DT = (startDate==null)?null:new DateTime(startDate);
    DateTime END_DT = (endDate==null)?null:new DateTime(endDate);

    Period period = new Period(START_DT, END_DT);

    return period;

 }

或根据您的要求，您可以更改 PeriodFormat 像这样

or as per your requirement you can change PeriodFormat like this

 PeriodFormatter mPeriodFormat;
 mPeriodFormat = new PeriodFormatterBuilder().appendYears().appendSuffix(" year(s) ").appendMonths().appendSuffix(" month(s) ").appendDays().appendSuffix(" day(s) ").printZeroNever().toFormatter();
 Toast.makeText(this,mPeriodFormat.print(age),Toast.LENGTH_SHORT).show();

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