如何在iOS7中简单地检索联系人列表？ [英] How to simply retrieve list of Contacts in iOS7?

问题描述

我需要在 iOS 中检索通讯录列表。

这是我的代码无效。

NSMutableArray *myContacts = [[NSMutableArray alloc]init];

    CFErrorRef error = NULL;
    ABAddressBookRef addressBook = ABAddressBookCreateWithOptions(NULL, NULL);
    if (addressBook!=nil)
    {
        NSArray *allContacts = (__bridge_transfer NSArray*)ABAddressBookCopyArrayOfAllPeople(addressBook);

        NSUInteger i = 0;
        for (i = 0; i<[allContacts count]; i++)
        {
            Person *person = [[Person alloc] init];
            ABRecordRef contactPerson = (__bridge ABRecordRef)allContacts[i];
            NSString *firstName = (__bridge_transfer NSString*)ABRecordCopyValue(contactPerson, kABPersonFirstNameProperty);

            person.firstName = firstName;
            [myContacts addObject:person];
        }
        CFRelease(addressBook);

    }
    else
    {
        NSLog(@"Error");

    }

我如何获得联系人？

推荐答案

您需要先请求访问用户的地址簿。设置一个标志，用于检查用户是否允许/拒绝访问。

You need to request access to the user's address book first. Set a flag for checking whether the user allowed/denied access.

__block BOOL userDidGrantAddressBookAccess;
CFErrorRef addressBookError = NULL;

if ( ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusNotDetermined ||
    ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusAuthorized )
{
    addressBook = ABAddressBookCreateWithOptions(NULL, &addressBookError);
    dispatch_semaphore_t sema = dispatch_semaphore_create(0);
    ABAddressBookRequestAccessWithCompletion(addressBook, ^(bool granted, CFErrorRef error){
        userDidGrantAddressBookAccess = granted;
        dispatch_semaphore_signal(sema);
    });
    dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER);
}
else
{
    if ( ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusDenied ||
        ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusRestricted )
    {
        // Display an error.
    }
}

然后你可以调用你写的方法来抓住联系人。请记住首先检查 userDidGrantAddressBookAccess 的值。

Then you can call that method you wrote to grab the contacts. Remember to check the value of userDidGrantAddressBookAccess first.

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