Question

我知道可以根据一个联系人提取联系人并查看信息。但有没有办法从你输入的电子邮件地址中获取所有电子邮件，然后将其存储在NSArray中？这是我第一次与联系人合作，所以我对此并不了解。

Answer 1

是的，你可以这样做。您想要这样做似乎很可疑（为什么您需要这些信息？），但这并不困难。

您可以使用ABAddressBookCopyArrayOfAllPeople与所有人一起获取CFArrayRef，然后您可以使用kABPersonEmailProperty查询每个人的ABRecordCopyValue。代码看起来像这样（未经测试）：

ABAddressBookRef addressBook = ABAddressBookCreate();
CFArrayRef people = ABAddressBookCopyArrayOfAllPeople(addressBook);
NSMutableArray *allEmails = [[NSMutableArray alloc] initWithCapacity:CFArrayGetCount(people)];
for (CFIndex i = 0; i < CFArrayGetCount(people); i++) {
    ABRecordRef person = CFArrayGetValueAtIndex(people, i);
    ABMultiValueRef emails = ABRecordCopyValue(person, kABPersonEmailProperty);
    for (CFIndex j=0; j < ABMultiValueGetCount(emails); j++) {
        NSString* email = (NSString*)ABMultiValueCopyValueAtIndex(emails, j);
        [allEmails addObject:email];
        [email release];
    }
    CFRelease(emails);
}
CFRelease(addressBook);
CFRelease(people);

（内存分配可能有点偏差;自从我开发Cocoa / Core Foundation代码以来已经有一段时间了。）

但严重的是，质疑你为什么要这样做。只需使用Apple提供的API在适当的时间提供联系人选择器，就有可能获得更好的解决方案。

Answer 2

ABAddressBookRef allPeople = ABAddressBookCreate();
CFArrayRef allContacts = ABAddressBookCopyArrayOfAllPeople(allPeople);
CFIndex numberOfContacts  = ABAddressBookGetPersonCount(allPeople);

NSLog(@"numberOfContacts------------------------------------%ld",numberOfContacts);


for(int i = 0; i < numberOfContacts; i++){
    NSString* name = @"";
    NSString* phone = @"";
    NSString* email = @"";

    ABRecordRef aPerson = CFArrayGetValueAtIndex(allContacts, i);
    ABMultiValueRef fnameProperty = ABRecordCopyValue(aPerson, kABPersonFirstNameProperty);
    ABMultiValueRef lnameProperty = ABRecordCopyValue(aPerson, kABPersonLastNameProperty);

    ABMultiValueRef phoneProperty = ABRecordCopyValue(aPerson, kABPersonPhoneProperty);\
    ABMultiValueRef emailProperty = ABRecordCopyValue(aPerson, kABPersonEmailProperty);

    NSArray *emailArray = (__bridge NSArray *)ABMultiValueCopyArrayOfAllValues(emailProperty);
    NSArray *phoneArray = (__bridge NSArray *)ABMultiValueCopyArrayOfAllValues(phoneProperty);


    if (fnameProperty != nil) {
        name = [NSString stringWithFormat:@"%@", fnameProperty];
    }
    if (lnameProperty != nil) {
        name = [name stringByAppendingString:[NSString stringWithFormat:@" %@", lnameProperty]];
    }

    if ([phoneArray count] > 0) {
        if ([phoneArray count] > 1) {
            for (int i = 0; i < [phoneArray count]; i++) {
                phone = [phone stringByAppendingString:[NSString stringWithFormat:@"%@\n", [phoneArray objectAtIndex:i]]];
            }
        }else {
            phone = [NSString stringWithFormat:@"%@", [phoneArray objectAtIndex:0]];
        }
    }

    if ([emailArray count] > 0) {
        if ([emailArray count] > 1) {
            for (int i = 0; i < [emailArray count]; i++) {
                email = [email stringByAppendingString:[NSString stringWithFormat:@"%@\n", [emailArray objectAtIndex:i]]];
            }
        }else {
            email = [NSString stringWithFormat:@"%@", [emailArray objectAtIndex:0]];
        }
    }

    NSLog(@"NAME : %@",name);
    NSLog(@"PHONE: %@",phone);
    NSLog(@"EMAIL: %@",email);
    NSLog(@"\n");
}

Answer 3

@import AddressBook;

- (void)addressBookInit {
    if (ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusDenied || ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusRestricted){
//        NSLog(@"Denied");
        UIAlertView *cantAddContactAlert = [[UIAlertView alloc] initWithTitle: @"Cannot get contacts" message: @"You must give the app permission to read the contacts first." delegate:nil cancelButtonTitle: @"OK" otherButtonTitles: nil];
        [cantAddContactAlert show];
    } else if (ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusAuthorized){
//        NSLog(@"Authorized");
        [self getEmails];
    } else {
//        NSLog(@"Not determined");
        ABAddressBookRequestAccessWithCompletion(ABAddressBookCreateWithOptions(NULL, nil), ^(bool granted, CFErrorRef error) {
            dispatch_async(dispatch_get_main_queue(), ^{
                if (!granted){
                    //4
                    UIAlertView *cantAddContactAlert = [[UIAlertView alloc] initWithTitle: @"Cannot get contacts" message: @"You must give the app permission to read the contacts first." delegate:nil cancelButtonTitle: @"OK" otherButtonTitles: nil];
                    [cantAddContactAlert show];
                    return;
                }
//                NSLog(@"Authorized 2");
                [self getEmails];

            });
        });
    }
}

-(NSArray *)getEmails
{
    NSMutableArray *emails = [NSMutableArray array];
    ABAddressBookRef addressBookRef = ABAddressBookCreateWithOptions(NULL, nil);
    NSArray *allContacts = (__bridge NSArray *)ABAddressBookCopyArrayOfAllPeople(addressBookRef);
    for (id record in allContacts)
    {
        ABRecordRef person = (__bridge ABRecordRef)record;
        ABMultiValueRef emailProperty = ABRecordCopyValue(person, kABPersonEmailProperty) ;
        NSArray *personEmails = (__bridge_transfer NSArray *)ABMultiValueCopyArrayOfAllValues(emailProperty);
        [emails addObjectsFromArray:personEmails];
        CFRelease(person);
        CFRelease(emailProperty);
    }
    CFRelease(addressBookRef) ;
    for (NSString *email in emails)
    {
        NSLog(@"%@", email) ;
    }
    return emails;
}

Answer 4

对于iOS 9+，

，请使用Contacts框架，Objective C

-(NSArray*)getAllContacts{
__block NSMutableArray *allContacts = nil;
CNContactStore *store = [[CNContactStore alloc] init];
[store requestAccessForEntityType:CNEntityTypeContacts completionHandler:^(BOOL granted, NSError * _Nullable error) {
    if (granted == YES) {
        //keys with fetching properties
        NSArray *keys = @[CNContactFamilyNameKey, CNContactGivenNameKey, CNContactEmailAddressesKey, CNContactImageDataKey];
        NSString *containerId = store.defaultContainerIdentifier;
        NSPredicate *predicate = [CNContact predicateForContactsInContainerWithIdentifier:containerId];
        NSError *error;
        NSArray *cnContacts = [store unifiedContactsMatchingPredicate:predicate keysToFetch:keys error:&error];
        if (error) {
            NSLog(@"error fetching contacts %@", error);
        } else {
            allContacts = [NSMutableArray array];
            for (CNContact *contact in cnContacts) {
                // copy data to my custom Contacts class.
                // create custom class Contacts with firstName,lastName,image and emailAddress
                for (CNLabeledValue<NSString*> *email in contact.emailAddresses) {
                    Contact *newContact = [[Contact alloc] init];
                    newContact.firstName = contact.givenName;
                    newContact.lastName = contact.familyName;
                    UIImage *image = [UIImage imageWithData:contact.imageData];
                    newContact.image = image;
                    newContact.emailAddress = email.value;
                    [allContacts addObject:newContact];
                }
            }
        }
    }
}];
return allContacts;}

从联系人（iOS）获取所有电子邮件地址

4 个答案: