JodaTime 日期格式问题

发布于 2024-11-09 11:29:41 字数 1032 浏览 2 评论 0原文

我正在按如下方式格式化我的日期：

String inputDateString = aMessage.getString("updated_at");
                        DateTimeFormatter fmt = ISODateTimeFormat.dateTimeNoMillis();

                        DateTime date = fmt.parseDateTime(inputDateString);
                        DateTime now = new DateTime();
                        Period period = new Period(date, now);

                        PeriodFormatter formatter = new PeriodFormatterBuilder()
                            .appendSeconds().appendSuffix(" seconds ago\n")
                            .printZeroNever()
                            .toFormatter();

                        String elapsed = formatter.print(period);

                        dateTextView.setText(elapsed);

我希望能够显示：

3 seconds ago if the period is less than 60 seconds
3 minutes ago if the period is less than 60 minutes
3 hours ago is the period is less than X hours
3 days ago if the period is less than X days

等等。

我怎样才能实现这一点？

原文

I am formatting my date as follows:

String inputDateString = aMessage.getString("updated_at");
                        DateTimeFormatter fmt = ISODateTimeFormat.dateTimeNoMillis();

                        DateTime date = fmt.parseDateTime(inputDateString);
                        DateTime now = new DateTime();
                        Period period = new Period(date, now);

                        PeriodFormatter formatter = new PeriodFormatterBuilder()
                            .appendSeconds().appendSuffix(" seconds ago\n")
                            .printZeroNever()
                            .toFormatter();

                        String elapsed = formatter.print(period);

                        dateTextView.setText(elapsed);

I would like to be able to show:

3 seconds ago if the period is less than 60 seconds
3 minutes ago if the period is less than 60 minutes
3 hours ago is the period is less than X hours
3 days ago if the period is less than X days

etc. etc.

How can I achieve this?

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°如果伤别离去 2024-11-16 11:29:41

查看 Period 上提供的方法，特别是诸如 toStandardSeconds() 之类的。使用这些应该很容易通过一些 if-else 语句进行测试来实现您想要的目标，例如

if (period.toStandardSeconds().getSeconds() < 60) {
   // form second-based string
}
else if (period.toStandardMinutes().getMinutes() < 60) {
   // ...

我认为 PeriodFormatter 在这种情况下是一个红鲱鱼，因为我认为不可能构建一个可以完成您想要的操作的格式化程序 - 并且在 if 块中您只能获取秒/小时/等。直接使用与条件语句中相同的方法调用。

Have a look at the methods available on Period, in particular those such as toStandardSeconds(). Using these it should be straightforward to achieve what you're after with a few if-else statements making tests such as

if (period.toStandardSeconds().getSeconds() < 60) {
   // form second-based string
}
else if (period.toStandardMinutes().getMinutes() < 60) {
   // ...

I think the PeriodFormatter is a red herring in this case, as I don't think it's possible to construct a single formatter that does what you want - and in the if blocks you can just get the seconds/hours/etc. directly using the same method calls as in the conditionals.

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