[F33]

Hi, I am trying to understand the AddressBook API and I can't figure out how to sort the results.

Suppose I have:

ABAddressBook *addressBook;
NSArray *everyone;

everyone holds all the people in my Address Book. How can I sort it, let's say, by LastName?

Dose the AddressBook API provides ways to sort? I can't seem to find it.

Any hint is greatly appreciated. Thank you.

- F33

[Diggory Laycock]

I recently came across the same thing.

The way I got round it was to add one method to ABPerson as a Category.

This method is a comparitor method that returns an NSComparisonResult.

you can then send the everyone array the sortedArrayUsingSelector: message

The code is below:

Code:

/* ABPersonAdditions.h */

//	This category addition allows arrays of ABPeople to be sorted by Last Name.


#import <AddressBook/AddressBook.h>
@interface ABPerson (MyPersonAddition)
-(NSComparisonResult)compareLastName:(ABPerson *)otherPerson;
@end


/* ABPersonAdditions.m */

#import "ABPersonAdditions.h"
@implementation ABPerson (MyPersonAddition)
-(NSComparisonResult)compareLastName:(ABPerson *)otherPerson
{
    return ([[self valueForProperty: kABLastNameProperty] caseInsensitiveCompare: [otherPerson valueForProperty: kABLastNameProperty]]);
}
@end

[F33]

Hi Diggory,

Thank you so much! That does the job. I will try to figure out how to sort by LastName, then FirstName now.

Again, thank you very much.

-f33