從iPhone地址簿中獲取電子郵件地址

Question

我目前能夠成功訪問並從peoplePickerNavigationController獲取數據，但是我想要做的是讓聯繫人的電子郵件地址被訪問，然後當聯繫人名字被按下。

場景：

"Button is clicked to add a contact 
AddressBook Modal Window slides into view 
Name of Contact is pressed 
If available, the contact's email address is stored in an array 
Dismiss modal window" 

我當前的代碼包括：

- (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifier { 
    ABMultiValueRef container = ABRecordCopyValue(person, property); 
    CFStringRef contactData = ABMultiValueCopyValueAtIndex(container, identifier); 
    CFRelease(container); 
    NSString *contactString = [NSString stringWithString:(NSString *)contactData]; 
    CFRelease(contactData); 

    NSLog(@"Value is: %@", contactString); 

    [self dismissModalViewControllerAnimated:YES]; 
    return NO; 
} 

Answer 1

這是我做的。

if(property == kABPersonEmailProperty) { 
    CFTypeRef prop = ABRecordCopyValue(person, property); 
    CFIndex index = ABMultiValueGetIndexForIdentifier(prop, identifierForValue); 
    NSString *email = (NSString *)ABMultiValueCopyValueAtIndex(prop, index); 

    ... 

    CFRelease(prop); 
    [email release]; 
}