Lookup a contact name/photo using phone number in ABAddressBook

AddressBookManager.h

#import <Foundation/Foundation.h>
#import "Contact.h"

@interface AddressBookManager : NSObject

+ (NSString *)nameForContactWithPhoneNumber:(NSString *)phoneNumber;
+ (UIImage *)photoForContactWithPhoneNumber:(NSString *)phoneNumber;

@end

AddressBookManager.m

#import "AddressBookManager.h"
#import <AddressBook/AddressBook.h>
#import "NSString+UnformattedPhoneNumber.h"

@implementation AddressBookManager

+ (NSArray *)allContactsFromAddressBook {
    static NSMutableArray *contacts = nil;
    static dispatch_once_t onceToken;
    
    dispatch_once(&onceToken, ^{
        contacts = [[NSMutableArray alloc] init];
        
#if __IPHONE_OS_VERSION_MIN_REQUIRED < 60000
        ABAddressBookRef addressBook = ABAddressBookCreate();
#else
        CFErrorRef *error = nil;
        ABAddressBookRef addressBook = ABAddressBookCreateWithOptions(NULL, error);
#endif
        
        __block BOOL accessGranted = NO;
        
        if (ABAddressBookRequestAccessWithCompletion != NULL) { // we're on iOS 6
            // Semaphore is used for blocking until response
            dispatch_semaphore_t sema = dispatch_semaphore_create(0);
            
            ABAddressBookRequestAccessWithCompletion(addressBook, ^(bool granted, CFErrorRef error) {
                
                accessGranted = granted;
                dispatch_semaphore_signal(sema);
            });
            
            dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER);
        }
        else { // we're on iOS 5 or older
            accessGranted = YES;
        }
        
        if (accessGranted) {
            NSArray *allPeople = (__bridge_transfer NSArray *)ABAddressBookCopyArrayOfAllPeople(addressBook);
            
            for (id person in allPeople) {
                Contact *contact = [[Contact alloc] init];
                NSString *firstName = @"";
                NSString *lastName = @"";
                
                // Get the name of the contact
                firstName = (__bridge_transfer NSString*)ABRecordCopyValue((__bridge ABRecordRef)(person), kABPersonFirstNameProperty);
                lastName = (__bridge_transfer NSString*)ABRecordCopyValue((__bridge ABRecordRef)(person), kABPersonLastNameProperty);
                
                [contact setName:[NSString stringWithFormat:@"%@ %@", firstName, lastName]];
                
                // Get the photo of the contact
                CFDataRef imageData = ABPersonCopyImageData((__bridge ABRecordRef)(person));
                UIImage *image = [UIImage imageWithData:(__bridge NSData *)imageData];
                [contact setPhoto:image];
                
                // Get all phone numbers of the contact
                NSMutableArray *tempArray = [[NSMutableArray alloc] init];
                ABMultiValueRef phoneNumbers = ABRecordCopyValue((__bridge ABRecordRef)(person), kABPersonPhoneProperty);
                
                // If the contact has multiple phone numbers, iterate on each of them
                NSInteger phoneNumberCount = ABMultiValueGetCount(phoneNumbers);
                for (int i = 0; i < phoneNumberCount; i++) {
                    NSString *phoneNumberFromAB = [(__bridge_transfer NSString*)ABMultiValueCopyValueAtIndex(phoneNumbers, i) unformattedPhoneNumber];
                    [tempArray addObject:phoneNumberFromAB];
                }
                CFRelease(phoneNumbers);
                [contact setNumbers:tempArray];
                [contacts addObject:contact];
            }
        }
        CFRelease(addressBook);
    });
    
    return contacts;
}

+ (Contact *)findContactWithPhoneNumber:(NSString *)phoneNumber {
    NSArray *contacts = [AddressBookManager allContactsFromAddressBook];
    
    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"numbers contains %@", phoneNumber];
    NSArray *filteredArray = [contacts filteredArrayUsingPredicate:predicate];
    
    Contact *matchedContact = [filteredArray lastObject];
    return matchedContact;
}

+ (NSString *)nameForContactWithPhoneNumber:(NSString *)phoneNumber {
    return [[AddressBookManager findContactWithPhoneNumber:phoneNumber] name];
}

+ (UIImage *)photoForContactWithPhoneNumber:(NSString *)phoneNumber {
    return [[AddressBookManager findContactWithPhoneNumber:phoneNumber] photo];
}

@end

Contact.h

#import <Foundation/Foundation.h>

@interface Contact : NSObject

@property (nonatomic, strong) NSString *name;
@property (nonatomic, strong) NSArray *numbers;
@property (nonatomic, strong) UIImage *photo;

@end

Contact.m

#import "Contact.h"

@implementation Contact

@end

NSString+UnformattedPhoneNumber.h

#import <Foundation/Foundation.h>

@interface NSString (UnformattedPhoneNumber)

- (NSString *)unformattedPhoneNumber;

@end

NSString+UnformattedPhoneNumber.m

#import "NSString+UnformattedPhoneNumber.h"

@implementation NSString (UnformattedPhoneNumber)

- (NSString *)unformattedPhoneNumber {
    NSCharacterSet *toExclude = [NSCharacterSet characterSetWithCharactersInString:@"/.()- "];
    return [[self componentsSeparatedByCharactersInSet:toExclude] componentsJoinedByString: @""];
}

@end