iOS: Compare two dates

by

According to Apple documentation of NSDate compare:

Returns an NSComparisonResult value that indicates the temporal ordering of the receiver and another given date.

- (NSComparisonResult)compare:(NSDate *)anotherDate

Parameters anotherDate

The date with which to compare the
receiver. This value must not be nil.
If the value is nil, the behavior is
undefined and may change in future
versions of Mac OS X.

Return Value

If:

The receiver and anotherDate are
exactly equal to each other,
NSOrderedSame

The receiver is later in
time than anotherDate,
NSOrderedDescending

The receiver is
earlier in time than anotherDate,
NSOrderedAscending

In other words:

if ([date1 compare:date2] == NSOrderedSame) ...

Note that it might be easier in your particular case to read and write this :

if ([date2 isEqualToDate:date2]) ...

See Apple Documentation about this one.

More Related Contents:

  1. Calculating the number of days between two dates in Objective-C
  2. NSDateFormatter return incorrect date from string
  3. iOS: Compare two NSDate-s without time portion
  4. How dangerous is it to compare floating point values?
  5. UIView frame, bounds and center
  6. “Thread 1: stopped at breakpoint” error when initializing an NSURL object
  7. How to Check if an NSDate occurs between two other NSDates
  8. UIImage resizing not working properly
  9. How to parse a date string into an NSDate object in iOS?
  10. Allowing interaction with a UIView under another UIView
  11. Super slow lag/delay on initial keyboard animation of UITextField
  12. Reading and writing images to an SQLite DB for iPhone use
  13. Show screen on first launch only in iOS
  14. Rotating a CGImage
  15. Determining 3G vs Edge
  16. How can I compute a SHA-2 (ideally SHA 256 or SHA 512) hash in iOS?
  17. iOS Background downloads when the app is not active
  18. Use regular expression to find/replace substring in NSString
  19. Post data in Objective C using Json
  20. ARC – The meaning of __unsafe_unretained?
  21. Current location permission dialog disappears too quickly
  22. How do I enable Local Storage in my WebKit-based application?
  23. Minimum and maximum date in UIDatePicker
  24. NSDateFormatter, am I doing something wrong or is this a bug?
  25. RestKit: How does one post an array of objects?
  26. Use Data From Class Without A New Init
  27. How to enable the new Objective-C object literals on iOS?
  28. Detecting if UIView is intersecting other UIViews
  29. iOS: store two NSMutableArray in a .plist file
  30. IBOutletCollection set ordering in Interface Builder

Leave a Comment