CODEWITHSUNDEEP
iphoneios5abaddressbook
Max
Max

Reputation: 572

Is this the right way to delete a contact from the iPhone?

I am trying to delete a contact from the iPhone which I have created. I tried to find a good working example of deleting a contact, however didn't find one. Adding a contact seemed quite easy but deleting one seems hard. The following code does not work, but it seemed to be plausible: 

ABAddressBookRef addressBook = ABAddressBookCreate();
ABRecordRef delete = ABPersonCreate();

ABRecordSetValue(delete, kABPersonFirstNameProperty, @"Max", nil);
ABRecordSetValue(delete, kABPersonLastNameProperty, @"Mustermann", nil); 

ABAddressBookRemoveRecord(addressBook, delete, &error);
ABAddressBookSave(addressBook, &error);

Could anyone help me out.

Thanks in advance for your help.

Max

Upvotes: 2

Views: 2492

Answers (1)

Carter Pape
Carter Pape

Reputation: 1039

The problem is that you're creating an ABRecord that isn't inside of the address book. What you have to do is search through an array of ABRedords from the ABAddressBook. I wrote how to do this for you:

CFErrorRef error = nil;

ABAddressBookRef addressBook = ABAddressBookCreate();
__block ABRecordRef toDelete = ABPersonCreate();

ABRecordSetValue(toDelete, kABPersonFirstNameProperty, @"Max", nil);
ABRecordSetValue(toDelete, kABPersonLastNameProperty, @"Mustermann", nil);

// Gets the array of everybody in the address book
NSArray *peopleArray = (__bridge NSArray *) ABAddressBookCopyArrayOfAllPeople(addressBook);

// Creates a test predicate to see if the ABRecord has the same name as toDelete
BOOL (^predicate)(id obj, NSUInteger idx, BOOL *stop) = ^(id obj, NSUInteger idx, BOOL *stop) {
    ABRecordRef person = (__bridge ABRecordRef)obj;
    CFComparisonResult result =  ABPersonComparePeopleByName(person, delete, kABPersonSortByLastName);
    bool pass = (result == kCFCompareEqualTo);
    if (pass) {
        toDelete = person;
    }
    return (BOOL) pass;
};

int idx = [peopleArray indexOfObjectPassingTest:predicate];

bool removed = ABAddressBookRemoveRecord(addressBook, toDelete, &error);
bool saved = ABAddressBookSave(addressBook, &error);

You can change how you want to compare ABRecord instances by changing the block code. All it's doing now is comparing the names of the contacts.

A caveat with this code is that it will only delete one instance of the ABRecords whose name matches delete’s.

Upvotes: 8

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