ios 如何计算iOS中两个日期之间的时差（以分钟为单位）
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How to calculate time difference in minutes between two dates in iOS
提问by Sagar Mohanty
Possible Duplicate:
How to calculate time in hours between two dates in iOS
I am beginner to Objective-C, so I need your help in syntax making.
我是 Objective-C 的初学者，所以我需要你在语法制作方面的帮助。
My problem goes like this:
我的问题是这样的：
I have 2 Strings, and I want to convert that into NSDateand then calculate the time difference between the dates in minutes.
我有 2 个字符串，我想将其转换为NSDate然后以分钟为单位计算日期之间的时差。
How can I do this?
我怎样才能做到这一点？
回答by Ole Begemann
- Use
NSDateFormatterto convert the date strings intoNSDateobjects. - Call
-[NSDate timeIntervalSinceDate:]to get the difference between the two dates in seconds. - Divide by 60 to get the difference in minutes.
- 使用
NSDateFormatter的日期字符串转换成NSDate对象。 - 调用
-[NSDate timeIntervalSinceDate:]以秒为单位获取两个日期之间的差异。 - 除以 60 可得到以分钟为单位的差异。
Alternatively, you can use NSCalendarand NSDateComponentsto calculate the difference in minutes for different calendars by using the components:fromDate:toDate:options:method.
或者，您可以使用NSCalendar和NSDateComponents计算不同日历的分钟差异components:fromDate:toDate:options:。
