ios6獲取通訊錄

網上找了一段代碼，還專門升級了ios設備和xcode，測試結果是可行得

+ (NSArray *) ABContacts {
    float version = [UIDevice currentDevice].systemVersion.floatValue;
    NSMutableArray *ret = nil;
    if(version >= 6.0)
    {
        NSLog(@"get contacts by >= 6.0 api");
        ABAddressBookRef addressBook = ABAddressBookCreateWithOptions(nil, nil);        
        //等待同意後向下執行
        dispatch_semaphore_t sema = dispatch_semaphore_create(0);
        ABAddressBookRequestAccessWithCompletion(addressBook, ^(bool granted, CFErrorRef error)
                                                 {
                                                     dispatch_semaphore_signal(sema);
                                                 });
        
        dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER);
        dispatch_release(sema);
        CFArrayRef ppRef = ABAddressBookCopyArrayOfAllPeople(addressBook);
        ret = [NSMutableArray array];
        for (id record in (NSArray *)ppRef) {
            @try {
                Contact *contact = [Contact contactWithABRecordRef:record];
                //NSLog(@"contact name = %@",contact.compositeName);
                [contact initForSearchWithRecord:record];
                //NSLog(@"init for search");
                [ret addObject:contact];
            }
            @catch (NSException *exception) {
            }
            @finally {
            }
            
        }
        NSLog(@"ab size = %d",[ret count]);
        
        CFRelease(ppRef);
        CFRelease(addressBook);
        
    }else{
        NSLog(@"get contacts by < 6.0 api");
        ABAddressBookRef addressBook = ABAddressBookCreate();
        CFArrayRef ppRef = ABAddressBookCopyArrayOfAllPeople(addressBook);
        ret = [NSMutableArray array];
        for (id record in (NSArray *)ppRef) {
            @try {
                Contact *contact = [Contact contactWithABRecordRef:record];
                //NSLog(@"contact name = %@",contact.compositeName);
                [contact initForSearchWithRecord:record];
                //NSLog(@"init for search");
                [ret addObject:contact];
            }
            @catch (NSException *exception) {
            }
            @finally {
            }
        }
        CFRelease(ppRef);
        CFRelease(addressBook);
        
    }
	
	return ret;
}