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添加两个NSDate
原标题:Adding two NSDate

I ve got two NSDate,date and time. 我愿以我从日期和时间出发的方式补充这些内容。 关于我如何这样做的任何建议?

卡车

Nik

最佳回答

Use NSCalendars components:fromDate: to get the components of the two dates.
Then reassemble them as needed using dateFromComponents:.

问题回答

如果我获得<代码>NSDates-dateByAddingtime Interval:-time IntervalSinceDate:是你所期待的。

hth
–f

I ve got two NSDate,date and time.

象你这样说的错了。

国家可持续发展局是一个具体的时刻(自古时代以来的X秒)。 可持续发展协会不单纯是“xo clock”或“日历上的日期”,而你不应试图将其合并,因为《发展权利宣言》等影响可能会使你的计算错误(在某些时间区,有些日期是2-0小时,有些日期是2:00小时)。

考虑使用NSDatePicker或UIDatePicker(酌情)使用户从单一地点进入日期和时间。 这不仅使你更容易这样做,而且也使结果更加正确。

如果你从档案或类似来源分别读取两件,而你不控制格式(因此,你可以命令制作方以一个价值点放出日期),你需要做两件事之一:

  • 在可能的情况下,将这两条插图结合起来。 例如,ISO 8601日期(例如,“2010-05-10”)和ISO 8601时间(例如,“23:20:19-0700”)可与“T”相加,以形成一个有效、完全具体的ISO 8601日期(“2010-05-10T23:20:19-0700”)。 然后,你可以把这一单体传给经过适当配置的NSDateFormatter。

  • 如果出于某种原因,你能够把扼杀物混为一谈,将其 par灭,并填写一份单一的国家SDateComponents物体。

    这不是令人愉快的,但正确性很重要,而只是每年只有几小时的两小时,只有某些用户才会mad。

目标是生产一个完全说明相关日期和时间的NSDate物体。 这是确保你在所有情况下都获得正确NSDate值的唯一途径。





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