从两个日期中找到月份和日期之间的差异

Question

从两个日期中找到月份和日期之间的差异

androiddatedatetimecalendarjodatime

3

我希望找到两个日期之间以月和天为单位的日期差。一个是当前系统日期，另一个是未来日期。

未来日期的格式如下：

2014-02-06 21:26

我已经使用以下代码来计算日期差：

1.

currentCal = Calendar.getInstance();
weddingCal = Calendar.getInstance();
weddingCal.clear();
DateFormat formatterResponseDate = new SimpleDateFormat("yyyy-MM-dd HH:mm");
formatterResponseDate.setTimeZone(TimeZone.getTimeZone("GMT")); 
weddingCal.setTime(formatterResponseDate.parse(responseThis.trim()));
long dateDiff = weddingCal.getTimeInMillis() -
currentCal.getTimeInMillis();
long months = dateDiff / (30 * 24 * 60 * 60 * 1000); 
long days = (dateDiff % (30 * 24 * 60 * 60 * 1000)) / (24 * 60 * 60 * 1000);

但是它给了我错误的结果，而且我认为它并不方便，因为有时一个月有31天。我还使用了JODA - Time来查找差异，但它也没有帮助我。

2.

currentCal = Calendar.getInstance();
startDate = new DateTime(currentCal.get(Calendar.YEAR),
(currentCal.get(Calendar.MONTH)+1),
currentCal.get(Calendar.DAY_OF_MONTH), currentCal.get(Calendar.HOUR),
currentCal.get(Calendar.MINUTE));
weddingCal = Calendar.getInstance();
weddingCal.clear();
weddingCal.setTime(formatterResponseDate.parse(responseThis.trim()));
endDate = new DateTime(weddingCal.get(Calendar.YEAR), (weddingCal.get(Calendar.MONTH)+1),
weddingCal.get(Calendar.DAY_OF_MONTH), weddingCal.get(Calendar.HOUR),
weddingCal.get(Calendar.MINUTE));
Period period = new Period(startDate, endDate);
tvMonth.setText(String.valueOf(period.getMonths()));
tvDays.setText(String.valueOf(period.getDays()));

两者都不起作用，请帮助我，我该如何找到它？谢谢。

- Girish Bhutiya

1个回答

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- Girish Bhutiya · Accepted Answer

我已经使用了以下代码，它可以正常工作。

currentCal = Calendar.getInstance();
startDate = new DateTime(currentCal.get(Calendar.YEAR),
                         (currentCal.get(Calendar.MONTH)+1),
                         currentCal.get(Calendar.DAY_OF_MONTH),
                         currentCal.get(Calendar.HOUR),
                         currentCal.get(Calendar.MINUTE));
weddingCal = Calendar.getInstance();
weddingCal.clear();
weddingCal.setTime(formatterResponseDate.parse(responseThis.trim()));
endDate = new DateTime(weddingCal.get(Calendar.YEAR),
                       (weddingCal.get(Calendar.MONTH)+1),
                       weddingCal.get(Calendar.DAY_OF_MONTH),
                       weddingCal.get(Calendar.HOUR),
                       weddingCal.get(Calendar.MINUTE));
Period period = new Period(startDate, endDate, PeriodType.yearMonthDayTime());
tvMonth.setText(String.valueOf(period.getMonths()));
tvDays.setText(String.valueOf(period.getDays()));