Open Contact List at Specific Contact

I have an iPhone app that uses a ABPeoplePickerNavigationController to pick out a contact. First time you select a contact, the contact list obviously starts at the top, under the letter 'A'. However, say you selected a contact under 'M'; if you then later want to change which contact is selected, I want to initialise the contact list so that it's already scrolled to the 'M' section.

Here's the code I use to open the contact list:

ABPeoplePickerNavigationController *picker =
                    [[ABPeoplePickerNavigationController alloc] init];
                    picker.peoplePickerDelegate = self;                    
                    [self presentModalViewController:picker animated:YES];
                    [picker release];

I can't find any information in the reference guide on how to configure the scroll offset where the controller开发者_开发百科 opens.

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This functionality is unavailable in ABPeoplePickerNavigationController. However you can implement a custom UITableViewController which does that using the AddressBook framework.

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Try to use the [ABAddressBook]

ABAddressBookRef addressBook = ABAddressBookCreate();
CFArrayRef allPeople = ABAddressBookCopyArrayOfAllPeople(addressBook);
CFIndex nPeople = ABAddressBookGetPersonCount(addressBook);

for( int i = 0 ; i < nPeople ; i++ )
{
    ABRecordRef person = CFArrayGetValueAtIndex(allPeople, i );
    NSString* name = [(NSString *)ABRecordCopyValue(person, kABPersonFirstNameProperty) autorelease];
}