Android 查找两个日期的月份和天数差

我想找出两个日期之间的月和日差。一个是我的系统当前日期，另一个是未来日期

未来日期的格式如下：

2014-02-06 21:26

我使用了下面的代码来找出差异

一,

但它给了我错误的结果，我认为这并不方便，因为有时一个月有31天。我也曾经发现差异，但它也帮不了我

二,

两个都不工作请帮帮我，我怎么才能找到它？

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谢谢

我使用了下面的代码，效果很好

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()));

---

顺便问一下，period是什么？period=org.joda.time.period它来自joda Library@AllTimeKing Narendra

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()));

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()));