How to sort a NSArray alphabetically

Question

How can I sort an array filled with  UIFont familyNames  into alphabetical order

User · Answer

A more powerful way of sorting a list of NSString to use things like NSNumericSearch :

NSArray *sortedArrayOfString = [arrayOfString sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) {
            return [(NSString *)obj1 compare:(NSString *)obj2 options:NSNumericSearch];
        }];

Combined with SortDescriptor, that would give something like :

NSSortDescriptor *sort = [NSSortDescriptor sortDescriptorWithKey:@"name" ascending:YES comparator:^NSComparisonResult(id obj1, id obj2) {
        return [(NSString *)obj1 compare:(NSString *)obj2 options:NSNumericSearch];
    }];
NSArray *sortedArray = [anArray sortedArrayUsingDescriptors:[NSArray arrayWithObject:sort]];

User · Answer

The other answers provided here mention using  selector localizedCaseInsensitiveCompare   This works great for an array of NSString  however if you want to extend this to another type of object  and sort those objects according to a  name  property  you should do this instead   NSSortDescriptor  sort    NSSortDescriptor sortDescriptorWithKey   name  ascending YES   sortedArray  anArray sortedArrayUsingDescriptors   sort      Your objects will be sorted according to the name property of those objects   If you want the sorting to be case insensitive  you would need to set the descriptor like this  NSSortDescriptor  sort    NSSortDescriptor sortDescriptorWithKey   name  ascending YES selector  selector caseInsensitiveCompare

User · Answer

The simplest approach is  to provide a sort selector  Apple s documentation for details   Objective-C  sortedArray    anArray sortedArrayUsingSelector  selector localizedCaseInsensitiveCompare       Swift  let descriptor  NSSortDescriptor   NSSortDescriptor key   YourKey   ascending  true  selector   localizedCaseInsensitiveCompare    let sortedResults  NSArray   temparray sortedArrayUsingDescriptors  descriptor       Apple provides several selectors for alphabetic sorting    compare   caseInsensitiveCompare   localizedCompare   localizedCaseInsensitiveCompare  localizedStandardCompare    Swift  var students     Kofi    Abena    Peter    Kweku    Akosua   students sort   print students     Prints    Abena    Akosua    Kofi    Kweku    Peter      Reference

User · Answer

- IBAction SegmentbtnCLK  id sender    self sortArryofDictionary        self objtable reloadData    - void sortArryofDictionary   NSSortDescriptor  sorter      switch  sortcontrol selectedSegmentIndex       case 0              sorter   NSSortDescriptor alloc initWithKey   Name  ascending YES               break          case 1              sorter   NSSortDescriptor alloc initWithKey   Age  ascending YES               default              break        NSArray  sortdiscriptor   NSArray alloc initWithObjects sorter  nil        arr sortUsingDescriptors sortdiscriptor

User · Answer

This already has good answers for most purposes  but I ll add mine which is more specific   In English  normally when we alphabetise  we ignore the word  the  at the beginning of a phrase  So  The United States  would be ordered under  U  and not  T    This does that for you   It would probably be best to put  these in categories      Sort an array of NSStrings alphabetically  ignoring the word  the  at the beginning of a string   - NSArray   sortArrayAlphabeticallyIgnoringThes  NSArray   unsortedArray        NSArray   sortedArray    unsortedArray sortedArrayUsingComparator  NSComparisonResult NSString  a  NSString  b               find the strings that will actually be compared for alphabetical ordering         NSString  firstStringToCompare    self stringByRemovingPrecedingThe a           NSString  secondStringToCompare    self stringByRemovingPrecedingThe b            return  firstStringToCompare compare secondStringToCompare               return sortedArray        Remove  the s  also removes preceding white spaces that are left as a result  Assumes no preceding whitespaces to start with  nb  Trailing white spaces will be deleted too   - NSString   stringByRemovingPrecedingThe  NSString   originalString       NSString  result      if    originalString substringToIndex 3  lowercaseString isEqualToString   the              result     originalString substringFromIndex 3  stringByTrimmingCharactersInSet  NSCharacterSet whitespaceCharacterSet              else           result   originalString            return result

User · Answer

Another easy method to sort an array of strings consists by using the NSString description property this way   NSSortDescriptor  valueDescriptor    NSSortDescriptor sortDescriptorWithKey   description  ascending YES   arrayOfSortedStrings    arrayOfNotSortedStrings sortedArrayUsingDescriptors   valueDescriptor

User · Answer

Use below code for sorting in alphabetical order       NSArray  unsortedStrings       Verdana     MS San Serif     Times New Roman    Chalkduster    Impact         NSArray  sortedStrings        unsortedStrings sortedArrayUsingSelector  selector compare          NSLog   Unsorted Array       unsortedStrings               NSLog   Sorted Array       sortedStrings     Below is console log    2015-04-02 16 17 50 614 ToDoList 2133 100512  Unsorted Array         Verdana       MS San Serif        Times New Roman       Chalkduster      Impact    2015-04-02 16 17 50 615 ToDoList 2133 100512  Sorted Array         Chalkduster      Impact       MS San Serif        Times New Roman       Verdana

[objective-c] How to sort a NSArray alphabetically?

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