Objective-C parse hex string to integer

by

Joshua Weinberg’s answer is mostly correct, however the 0x prefix is optional when scanning hexadecimal integers. If you have a string in the format #01FFFFAB, you can still use NSScanner, but you can skip the first character.

unsigned result = 0;
NSScanner *scanner = [NSScanner scannerWithString:@"#01FFFFAB"];

[scanner setScanLocation:1]; // bypass '#' character
[scanner scanHexInt:&result];

More Related Contents:

  1. Is it possible to reference a variable with a string and an int?
  2. Replace multiple characters in a string in Objective-C?
  3. Where can I find a CSV to NSArray parser for Objective-C? [closed]
  4. Static string variable in Objective C on iphone
  5. Convert hex data string to NSData in Objective C (cocoa)
  6. Objective-c iPhone percent encode a string?
  7. JSON and Core Data on the iPhone
  8. How to write data in plist?
  9. How to get UITableView from UITableViewCell?
  10. iOS 7 Navigation Bar text and arrow color
  11. How to add a UIView above the current UITableViewController
  12. How to check programmatically if an App is installed?
  13. Reading audio samples via AVAssetReader
  14. How do I share an object between UIViewControllers on iPhone?
  15. Enabling crash logs symbolication in Xcode 4.2
  16. How can I locally detect iPhone clock advancement by a user between app runs?
  17. What is the maximum length of an NSString object?
  18. What’s the best way to put a c-struct in an NSArray?
  19. Disable orientation change rotation animation
  20. Sorting NSString values as if NSInteger using NSSortDescriptor
  21. Bootstrap Server Error in Xcode IPHONE [duplicate]
  22. How to use NSScanner?
  23. Calling method in current view controller from App Delegate in iOS
  24. UICollectionView animations (insert/delete items)
  25. Objective c, Memory management of instance members
  26. Issue With Code: Format string is not a string literal [duplicate]
  27. How to create a round button?
  28. Making a UIImage to a circle form
  29. UITableViewCell Accessory Type Checked on Tap & Set other unchecked
  30. Prevent scrolling in a MKMapView, also when zooming

Leave a Comment