Access exchange contacts on device - ios

Question

I have an app, that needs to get the user's contacts
providing the user gave access to the contacts
How do i get the exchange contacts ?
I tried the normal method of accessing the phone book, but i want to create my own ui
and in my own ui, only the local contacts appear
this is my code to get the contacts
- (void)reloadAddressBook
{
// Create addressbook data model
NSMutableArray *contactsTemp = [NSMutableArray array];
ABAddressBookRef addressBooks = [(TKPeoplePickerController*)self.navigationController addressBook];
CFArrayRef allPeople;
CFIndex peopleCount;
if (_group) {
self.title = _group.name;
ABRecordRef groupRecord = ABAddressBookGetGroupWithRecordID(addressBooks, (ABRecordID)_group.recordID);
allPeople = ABGroupCopyArrayOfAllMembers(groupRecord);
peopleCount = (CFIndex)_group.membersCount;
} else {
self.title = NSLocalizedString(#"All Contacts", nil);
allPeople = ABAddressBookCopyArrayOfAllPeople(addressBooks);
peopleCount = ABAddressBookGetPersonCount(addressBooks);
}
for (NSInteger i = 0; i < peopleCount; i++)
{
ABRecordRef contactRecord = CFArrayGetValueAtIndex(allPeople, i);
if (!contactRecord) continue;
CFStringRef abName = ABRecordCopyValue(contactRecord, kABPersonFirstNameProperty);
CFStringRef abLastName = ABRecordCopyValue(contactRecord, kABPersonLastNameProperty);
CFStringRef abFullName = ABRecordCopyCompositeName(contactRecord);
Contact *contact = [[Contact alloc] init];
NSString *fullNameString;
NSString *firstString = (__bridge NSString *)abName;
NSString *lastNameString = (__bridge NSString *)abLastName;
if ((__bridge id)abFullName != nil) {
fullNameString = (__bridge NSString *)abFullName;
} else {
if ((__bridge id)abLastName != nil)
{
fullNameString = [NSString stringWithFormat:#"%# %#", firstString, lastNameString];
}
}
if([fullNameString isEqualToString:#"אלי"]){
LogInfo(#"found eli");
}
contact.name = fullNameString;
contact.recordID = (int)ABRecordGetRecordID(contactRecord);
contact.rowSelected = NO;
contact.lastName = (__bridge NSString*)abLastName;
contact.firstName = (__bridge NSString*)abName;
ABPropertyID multiProperties[] = {
kABPersonPhoneProperty,
kABPersonEmailProperty
};
NSInteger multiPropertiesTotal = sizeof(multiProperties) / sizeof(ABPropertyID);
for (NSInteger j = 0; j < multiPropertiesTotal; j++) {
ABPropertyID property = multiProperties[j];
ABMultiValueRef valuesRef = ABRecordCopyValue(contactRecord, property);
NSInteger valuesCount = 0;
if (valuesRef != nil) valuesCount = ABMultiValueGetCount(valuesRef);
if (valuesCount == 0) {
CFRelease(valuesRef);
continue;
}
for (NSInteger k = 0; k < valuesCount; k++) {
CFStringRef value = ABMultiValueCopyValueAtIndex(valuesRef, k);
switch (j) {
case 0: {// Phone number
contact.tel = [(__bridge NSString*)value telephoneWithReformat];
break;
}
case 1: {// Email
contact.email = (__bridge NSString*)value;
break;
}
}
CFRelease(value);
}
CFRelease(valuesRef);
if(contact.tel.length == 0){
continue;
}
}
[contactsTemp addObject:contact];
if (abName) CFRelease(abName);
if (abLastName) CFRelease(abLastName);
if (abFullName) CFRelease(abFullName);
}
if (allPeople) CFRelease(allPeople);
// Sort data
UILocalizedIndexedCollation *theCollation = [UILocalizedIndexedCollation currentCollation];
SEL sorter = ABPersonGetSortOrdering() == kABPersonSortByFirstName ? NSSelectorFromString(#"sorterFirstName") : NSSelectorFromString(#"sorterLastName");
for (TKContact *contact in contactsTemp) {
NSInteger sect = [theCollation sectionForObject:contact
collationStringSelector:sorter];
contact.sectionNumber = sect;
}
NSInteger highSection = [[theCollation sectionTitles] count];
NSMutableArray *sectionArrays = [NSMutableArray arrayWithCapacity:highSection];
for (int i=0; i<=highSection; i++) {
NSMutableArray *sectionArray = [NSMutableArray arrayWithCapacity:1];
[sectionArrays addObject:sectionArray];
}
for (TKContact *contact in contactsTemp) {
[(NSMutableArray *)[sectionArrays objectAtIndex:contact.sectionNumber] addObject:contact];
}
for (NSMutableArray *sectionArray in sectionArrays) {
NSArray *sortedSection = [theCollation sortedArrayFromArray:sectionArray collationStringSelector:sorter];
[_listContent addObject:sortedSection];
}
[self.tableView reloadData];
}