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iOS 基礎類解析 - NSDate

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NSDate Class Reference

Inherits from NSObject Conforms to NSCopying
NSSecureCoding
NSObject (NSObject)
Framework /System/Library/Frameworks/Foundation.framework Availability Available in iOS 2.0 and later. Declared in NSDate.h
Companion guides Date and Time Programming Guide
Property List Programming Guide
Related sample code MVCNetworking TableView Fundamentals for iOS TopSongs URLCache XMLPerformance

Creating and Initializing Date Objects

  • + date
  • + dateWithTimeIntervalSinceNow:
  • + dateWithTimeInterval:sinceDate:
  • + dateWithTimeIntervalSinceReferenceDate:
  • + dateWithTimeIntervalSince1970:
  • – init
  • – initWithTimeIntervalSinceNow:
  • – initWithTimeInterval:sinceDate:
  • – initWithTimeIntervalSinceReferenceDate:
  • – initWithTimeIntervalSince1970:

    Getting Temporal Boundaries

    • + distantFuture
    • + distantPast

      Comparing Dates

      • – isEqualToDate:
      • – earlierDate:
      • – laterDate:
      • – compare:

        Getting Time Intervals

        • – timeIntervalSinceDate:
        • – timeIntervalSinceNow
        • + timeIntervalSinceReferenceDate
        • – timeIntervalSinceReferenceDate
        • – timeIntervalSince1970

          Adding a Time Interval

          • – dateByAddingTimeInterval:
          • – addTimeInterval: Deprecated in iOS 4.0

            Representing Dates as Strings

            • – description
            • – descriptionWithLocale:



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