如何使用联系人框架获取 iOS9中的所有联系人记录

AddressBook 框架的大部分内容在 iOS9中已经被弃用。在新的联系人框架 文件只显示了如何获取记录匹配的 NSPredicate，但如果我想 所有的记录？

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get default container identifier first and use predicate matching container identifier

let keysToFetch = [CNContactGivenNameKey, CNContactFamilyNameKey, CNContactPhoneNumbersKey]
let containerId = CNContactStore().defaultContainerIdentifier()
let predicate: NSPredicate = CNContact.predicateForContactsInContainerWithIdentifier(containerId)
let contacts = try CNContactStore().unifiedContactsMatchingPredicate(predicate, keysToFetch: keysToFetch)
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Objective-C:

//ios 9+
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, CNContactPhoneNumbersKey, 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 {
for (CNContact *contact in cnContacts) {
// copy data to my custom Contacts class.
Contact *newContact = [[Contact alloc] init];
newContact.firstName = contact.givenName;
newContact.lastName = contact.familyName;
UIImage *image = [UIImage imageWithData:contact.imageData];
newContact.image = image;
for (CNLabeledValue *label in contact.phoneNumbers) {
NSString *phone = [label.value stringValue];
if ([phone length] > 0) {
[contact.phones addObject:phone];
}
}
}
}
}
}];

Also to get all contacts you can use the enumerateContactsWithFetchRequest method:

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, CNContactPhoneNumbersKey, CNContactImageDataKey];
CNContactFetchRequest *request = [[CNContactFetchRequest alloc] initWithKeysToFetch:keys];
NSError *error;
BOOL success = [store enumerateContactsWithFetchRequest:request error:&error usingBlock:^(CNContact * __nonnull contact, BOOL * __nonnull stop) {
if (error) {
NSLog(@"error fetching contacts %@", error);
} else {
// copy data to my custom Contact class.
Contact *newContact = [[Contact alloc] init];
newContact.firstName = contact.givenName;
newContact.lastName = contact.familyName;
// etc.
}
}];
}
}];

If you want to filter contacts by name you can use this:

Obj-C:

// keys from example above
NSArray *keys = @[CNContactFamilyNameKey, CNContactGivenNameKey, CNContactPhoneNumbersKey, CNContactImageDataKey];
NSArray *cnContacts = [store unifiedContactsMatchingPredicate:[CNContact predicateForContactsMatchingName:@"John Appleseed"] keysToFetch:keys error:&error];

Swift 3:

let store = CNContactStore()
let contacts = try store.unifiedContactsMatchingPredicate(CNContact.predicateForContactsMatchingName("Appleseed"), keysToFetch:[CNContactGivenNameKey, CNContactFamilyNameKey])

Official documentation is here: https://developer.apple.com/reference/contacts

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最佳答案

Both other answers do only load contacts from the container with the defaultContainerIdentifier. In a scenario, where the user has more than one container (i.e. an Exchange and an iCloud account which both are used to store contacts), this would only load the contacts from the account that is configured as the default. Therefore, it would not load all contacts as requested by the author of the question.

What you'll probably want to do instead is getting all the containers and iterate over them to extract all contacts from each of them. The following code snippet is an example of how we do it in one of our apps (in Swift):

lazy var contacts: [CNContact] = {
let contactStore = CNContactStore()
let keysToFetch = [
CNContactFormatter.descriptorForRequiredKeysForStyle(.FullName),
CNContactEmailAddressesKey,
CNContactPhoneNumbersKey,
CNContactImageDataAvailableKey,
CNContactThumbnailImageDataKey]


// Get all the containers
var allContainers: [CNContainer] = []
do {
allContainers = try contactStore.containersMatchingPredicate(nil)
} catch {
print("Error fetching containers")
}


var results: [CNContact] = []


// Iterate all containers and append their contacts to our results array
for container in allContainers {
let fetchPredicate = CNContact.predicateForContactsInContainerWithIdentifier(container.identifier)


do {
let containerResults = try contactStore.unifiedContactsMatchingPredicate(fetchPredicate, keysToFetch: keysToFetch)
results.appendContentsOf(containerResults)
} catch {
print("Error fetching results for container")
}
}


return results
}()
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For Swift 4 

        var results: [CNContact] = []


let fetchRequest = CNContactFetchRequest(keysToFetch: [CNContactGivenNameKey as CNKeyDescriptor, CNContactFamilyNameKey as CNKeyDescriptor, CNContactMiddleNameKey as CNKeyDescriptor, CNContactEmailAddressesKey as CNKeyDescriptor,CNContactPhoneNumbersKey as CNKeyDescriptor])


fetchRequest.sortOrder = CNContactSortOrder.userDefault


let store = CNContactStore()


do {
try store.enumerateContacts(with: fetchRequest, usingBlock: { (contact, stop) -> Void in
print(contact.phoneNumbers.first?.value ?? "no")
results.append(contact)


})
}
catch let error as NSError {
print(error.localizedDescription)
}

Older version for swift var results contains all contact

let contactStore = CNContactStore()
var results: [CNContact] = []
do {
try contactStore.enumerateContactsWithFetchRequest(CNContactFetchRequest(keysToFetch: [CNContactGivenNameKey, CNContactFamilyNameKey, CNContactMiddleNameKey, CNContactEmailAddressesKey,CNContactPhoneNumbersKey])) {
(contact, cursor) -> Void in
results.append(contact)
}
}
catch{
print("Handle the error please")
}
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Right now in iOS9 ABAddressBookRef is deprecated so to fetch all contact from phone use this framework and add this function you will get array of contact.

import Contact framework in .h class like this

#import <Contacts/Contacts.h>

then add this method in .m file 

 -(void)contactsFromAddressBook{
//ios 9+
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, CNContactPhoneNumbersKey, 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 {
NSString *phone;
NSString *fullName;
NSString *firstName;
NSString *lastName;
UIImage *profileImage;
NSMutableArray *contactNumbersArray;
for (CNContact *contact in cnContacts) {
// copy data to my custom Contacts class.
firstName = contact.givenName;
lastName = contact.familyName;
if (lastName == nil) {
fullName=[NSString stringWithFormat:@"%@",firstName];
}else if (firstName == nil){
fullName=[NSString stringWithFormat:@"%@",lastName];
}
else{
fullName=[NSString stringWithFormat:@"%@ %@",firstName,lastName];
}
UIImage *image = [UIImage imageWithData:contact.imageData];
if (image != nil) {
profileImage = image;
}else{
profileImage = [UIImage imageNamed:@"person-icon.png"];
}
for (CNLabeledValue *label in contact.phoneNumbers) {
phone = [label.value stringValue];
if ([phone length] > 0) {
[contactNumbersArray addObject:phone];
}
}
NSDictionary* personDict = [[NSDictionary alloc] initWithObjectsAndKeys: fullName,@"fullName",profileImage,@"userImage",phone,@"PhoneNumbers", nil];
[MutableArray__Contact addObject:personDict];
}
dispatch_async(dispatch_get_main_queue(), ^
{
NSLog(@"%@",ar_Contact);
//[self.tableViewRef reloadData];
});
}
}
}];
}

for using this method call contactsFromAddressBook function

[self contactsFromAddressBook];
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CNContact in iOS 9

Objective C

#import "ViewController.h"
#import <Contacts/Contacts.h>
@interface ViewController ()
{
NSMutableArray *arrayTableData;
}


@end


@implementation ViewController


-(void)viewDidLoad
{
[self fetchContactsandAuthorization];
}




//This method is for fetching contacts from iPhone.Also It asks authorization permission.
-(void)fetchContactsandAuthorization
{
// Request authorization to Contacts
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, CNContactPhoneNumbersKey, 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
{
NSString *phone;
NSString *fullName;
NSString *firstName;
NSString *lastName;
UIImage *profileImage;
NSMutableArray *contactNumbersArray = [[NSMutableArray alloc]init];
for (CNContact *contact in cnContacts) {
// copy data to my custom Contacts class.
firstName = contact.givenName;
lastName = contact.familyName;
if (lastName == nil) {
fullName=[NSString stringWithFormat:@"%@",firstName];
}else if (firstName == nil){
fullName=[NSString stringWithFormat:@"%@",lastName];
}
else{
fullName=[NSString stringWithFormat:@"%@ %@",firstName,lastName];
}
UIImage *image = [UIImage imageWithData:contact.imageData];
if (image != nil) {
profileImage = image;
}else{
profileImage = [UIImage imageNamed:@"person-icon.png"];
}
for (CNLabeledValue *label in contact.phoneNumbers) {
phone = [label.value stringValue];
if ([phone length] > 0) {
[contactNumbersArray addObject:phone];
}
}
NSDictionary* personDict = [[NSDictionary alloc] initWithObjectsAndKeys: fullName,@"fullName",profileImage,@"userImage",phone,@"PhoneNumbers", nil];
[arrayTableData addObject:[NSString stringWithFormat:@"%@",[personDict objectForKey:@"fullName"]]];
NSLog(@"The contactsArray are - %@",arrayTableData);
}
dispatch_async(dispatch_get_main_queue(), ^{
[tableViewContactData reloadData];
});
}
}
}];
}
@end

The output is

The contactsArray are - (
"John Appleseed",
"Kate Bell",
"Anna Haro",
"Daniel Higgins",
"David Taylor",
"Hank Zakroff"
}
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Get Full Name, Email Id, Phone Number, Profile Picture and Birthday Date from Contacts Framework in iOS9

#pragma mark
#pragma mark -- Getting Contacts From AddressBook
-(void)contactsDetailsFromAddressBook{
//ios 9+
CNContactStore *store = [[CNContactStore alloc] init];
[store requestAccessForEntityType:CNEntityTypeContacts completionHandler:^(BOOL granted, NSError * _Nullable error) {
if (granted == YES) {
//keys with fetching properties
NSArray *keys = @[CNContactBirthdayKey,CNContactFamilyNameKey, CNContactGivenNameKey, CNContactPhoneNumbersKey, CNContactImageDataKey, CNContactEmailAddressesKey];
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 {
NSString *phone;
NSString *fullName;
NSString *firstName;
NSString *lastName;
UIImage *profileImage;
NSDateComponents *birthDayComponent;
NSMutableArray *contactNumbersArray;
NSString *birthDayStr;
NSMutableArray *emailArray;
NSString* email = @"";
for (CNContact *contact in cnContacts) {
// copy data to my custom Contacts class.
firstName = contact.givenName;
lastName = contact.familyName;
birthDayComponent = contact.birthday;
if (birthDayComponent == nil) {
// NSLog(@"Component: %@",birthDayComponent);
birthDayStr = @"DOB not available";
}else{
birthDayComponent = contact.birthday;
NSInteger day = [birthDayComponent day];
NSInteger month = [birthDayComponent month];
NSInteger year = [birthDayComponent year];
// NSLog(@"Year: %ld, Month: %ld, Day: %ld",(long)year,(long)month,(long)day);
birthDayStr = [NSString stringWithFormat:@"%ld/%ld/%ld",(long)day,(long)month,(long)year];
}
if (lastName == nil) {
fullName=[NSString stringWithFormat:@"%@",firstName];
}else if (firstName == nil){
fullName=[NSString stringWithFormat:@"%@",lastName];
}
else{
fullName=[NSString stringWithFormat:@"%@ %@",firstName,lastName];
}
UIImage *image = [UIImage imageWithData:contact.imageData];
if (image != nil) {
profileImage = image;
}else{
profileImage = [UIImage imageNamed:@"placeholder.png"];
}
for (CNLabeledValue *label in contact.phoneNumbers) {
phone = [label.value stringValue];
if ([phone length] > 0) {
[contactNumbersArray addObject:phone];
}
}
////Get all E-Mail addresses from contacts
for (CNLabeledValue *label in contact.emailAddresses) {
email = label.value;
if ([email length] > 0) {
[emailArray addObject:email];
}
}
//NSLog(@"EMAIL: %@",email);
NSDictionary* personDict = [[NSDictionary alloc] initWithObjectsAndKeys: fullName,@"fullName",profileImage,@"userImage",phone,@"PhoneNumbers",birthDayStr,@"BirthDay",email,@"userEmailId", nil];
// NSLog(@"Response: %@",personDict);
[self.contactsArray addObject:personDict];
}
dispatch_async(dispatch_get_main_queue(), ^{
[self.tableViewRef reloadData];
});
}
}
}];
}
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Using Swift and Contacts framework to fetch all contacts, including name and phone numbers 

import Contacts


let store = CNContactStore()
store.requestAccessForEntityType(.Contacts, completionHandler: {
granted, error in


guard granted else {
let alert = UIAlertController(title: "Can't access contact", message: "Please go to Settings -> MyApp to enable contact permission", preferredStyle: .Alert)
alert.addAction(UIAlertAction(title: "OK", style: .Default, handler: nil))
self.presentViewController(alert, animated: true, completion: nil)
return
}


let keysToFetch = [CNContactFormatter.descriptorForRequiredKeysForStyle(.FullName), CNContactPhoneNumbersKey]
let request = CNContactFetchRequest(keysToFetch: keysToFetch)
var cnContacts = [CNContact]()


do {
try store.enumerateContactsWithFetchRequest(request){
(contact, cursor) -> Void in
cnContacts.append(contact)
}
} catch let error {
NSLog("Fetch contact error: \(error)")
}


NSLog(">>>> Contact list:")
for contact in cnContacts {
let fullName = CNContactFormatter.stringFromContact(contact, style: .FullName) ?? "No Name"
NSLog("\(fullName): \(contact.phoneNumbers.description)")
}
})

Fetching contact is slow operation, so you should not block main UI thread. Do CNContactFetchRequest on background thread. That's why I put the code into completionHandler. It's run on a background thread.

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SWIFT 2

Fetch Full Name, Email Id, Phone Number, Profile Picture from Contacts Framework in iOS9

NOTE Contacts without name has also been handled.

Step 1

import Contacts

Step 2

func fetchContacts(completion: (result: NSMutableArray) -> Void  )
{
let finalArrayForContacts = NSMutableArray()
let contactsArray = NSMutableArray()
let requestForContacts = CNContactFetchRequest(keysToFetch: [CNContactIdentifierKey, CNContactFormatter.descriptorForRequiredKeysForStyle(CNContactFormatterStyle.FullName), CNContactPhoneNumbersKey ,CNContactThumbnailImageDataKey])
do{
try contactStore.enumerateContactsWithFetchRequest(requestForContacts) { (contactStore : CNContact, stop: UnsafeMutablePointer<ObjCBool>) -> Void in
contactsArray.addObject(contactStore)
}
}
catch {


}
if contactsArray.count > 0 {
let formatter = CNContactFormatter()
for contactTemp  in contactsArray
{
let contactNew = contactTemp as! CNContact
//Contact Name
var stringFromContact = formatter.stringFromContact(contactNew)
if stringFromContact == nil {
stringFromContact = "Unnamed"
}




var imageData = NSData?()
if contactNew.thumbnailImageData != nil{
imageData = contactNew.thumbnailImageData!
}else{
//         imageData = nil
}
var tempArray : NSArray = NSArray()
if (contactNew.phoneNumbers).count > 0 {
tempArray = ((contactNew.phoneNumbers as? NSArray)?.valueForKey("value").valueForKey("digits")) as! NSArray
for i in 0  ..< tempArray.count
{
let newDict = NSMutableDictionary()
let phoneNumber : String = (tempArray.objectAtIndex(i)) as! String


if phoneNumber.characters.count > 0 {
var test = false


if phoneNumber.hasPrefix("+")
{
test = true
}
var resultString : String = (phoneNumber.componentsSeparatedByCharactersInSet(characterSet) as NSArray).componentsJoinedByString("")


if test == true
{
resultString = "+\(resultString)"
}
newDict.setValue(resultString, forKey: "contact_phone")
newDict.setValue(stringFromContact, forKey: "contact_name")
newDict.setValue("0", forKey: "contact_select")
newDict.setValue(imageData, forKey: "contact_image")
finalArrayForContacts.addObject(newDict)
}
}
}else{
// no number saved
}
}
}else {
print("No Contacts Found")
}
completion(result: finalArrayForContacts)
}
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Permissions for Contacts iOS 9 SWIFT 2

 let status : CNAuthorizationStatus = CNContactStore.authorizationStatusForEntityType(CNEntityType.Contacts)
if status == CNAuthorizationStatus.NotDetermined{
contactStore.requestAccessForEntityType(CNEntityType.Contacts, completionHandler: { (temp: Bool,  error : NSError?) -> Void in
//call contacts fetching function
})
}else if status == CNAuthorizationStatus.Authorized {
//call contacts fetching function
})
}
else if status == CNAuthorizationStatus.Denied {
}
}
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Apple actually recommends enumerateContactsWithFetchRequest of CNContactStore to fetch all contacts and NOT unifiedContactsMatchingPredicate.

Below is the working code for Obj-C.

CNContactStore *store = [[CNContactStore alloc] init];


//keys with fetching properties
NSArray *keys = @[CNContactGivenNameKey, CNContactPhoneNumbersKey];
CNContactFetchRequest *request = [[CNContactFetchRequest alloc] initWithKeysToFetch:keys];
NSError *error;


[store enumerateContactsWithFetchRequest:request error:&error usingBlock:^(CNContact * __nonnull contact, BOOL * __nonnull stop) {


// access it this way -> contact.givenName; etc


}];

Here is the link where apple recommends enumerate function: https://developer.apple.com/reference/contacts/cncontactstore/1403266-unifiedcontactsmatchingpredicate?language=objc#discussion

If link expired, here is what Apple wrote:

If no matches are found, this method returns an empty array (or nil in case of error). Use only the predicates from the CNContact class predicates. Compound predicates are not supported by this method. Due to unification, the returned contacts may have different identifiers than you specify. To fetch all contacts, use enumerateContactsWithFetchRequest:error:usingBlock:.

小开

@rocolitis 's answer in swift! His answer is the most correct way of doing this according to Apple's documentation.

let contactStore = CNContactStore()
let keys = [CNContactPhoneNumbersKey, CNContactFamilyNameKey, CNContactGivenNameKey, CNContactNicknameKey] as [CNKeyDescriptor]
let request = CNContactFetchRequest(keysToFetch: keys)


try? contactStore.enumerateContacts(with: request) { (contact, error) in


// Do something with contact


}

You should probably check your access to your contacts first!

let authorization = CNContactStore.authorizationStatus(for: CNEntityType.contacts)


switch authorization {
case .authorized: break
case .denied: break
case .restricted: break
case .notDetermined: break
}
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In swift 3 and Xcode 8 you can get all contacts list

let keys = [CNContactGivenNameKey ,CNContactImageDataKey,CNContactPhoneNumbersKey]
var message: String!
//let request=CNContactFetchRequest(keysToFetch: keys)
let contactsStore = AppDelegate.AppDel.contactStore
// Get all the containers
var allContainers: [CNContainer] = []
do {
allContainers = try contactsStore.containers(matching: nil)
} catch {
print("Error fetching containers")
}






// Iterate all containers and append their contacts to our results array
for container in allContainers {
let fetchPredicate = CNContact.predicateForContactsInContainer(withIdentifier: container.identifier)


do {
let containerResults = try contactsStore.unifiedContacts(matching: fetchPredicate, keysToFetch: keys as [CNKeyDescriptor])
self.results.append(contentsOf: containerResults)
self.tableView.reloadData()
message="\(self.results.count)"
} catch {
print("Error fetching results for container")
}
}
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I am trying this code it works fine. I can fetch all contacts details using this code in swift3 latest framework using contacts:

let requestForContacts = CNContactFetchRequest(keysToFetch: [CNContactIdentifierKey as CNKeyDescriptor, CNContactFormatter.descriptorForRequiredKeys(for: CNContactFormatterStyle.fullName), CNContactPhoneNumbersKey as CNKeyDescriptor ,CNContactImageDataKey as CNKeyDescriptor,CNContactEmailAddressesKey as CNKeyDescriptor,CNContactBirthdayKey as CNKeyDescriptor])
do {
try self.store.enumerateContacts(with: requestForContacts) { contact, stop in
print("contact:\(contact)")
self.contacts.append(contact)
}
} catch {
print(error)
}


for contact in self.contacts {
print(contact)
let firstName = contact.givenName
nameArray.append(firstName)
print("first:\(firstName)")
let phoneNumber = (contact.phoneNumbers[0].value).value(forKey: "digits")
phoneNumberArray.append(phoneNumber as! String)
let emailAddress = contact.emailAddresses[0].value(forKey: "value")
emailAddressArray.append(emailAddress as! String)
}
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Cody's response in Swift 3:

import Contacts

Then within whatever function you're using:

           let store = CNContactStore()
store.requestAccess(for: .contacts, completionHandler: {
granted, error in


guard granted else {
let alert = UIAlertController(title: "Can't access contact", message: "Please go to Settings -> MyApp to enable contact permission", preferredStyle: .alert)
alert.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
self.present(alert, animated: true, completion: nil)
return
}


let keysToFetch = [CNContactFormatter.descriptorForRequiredKeys(for: .fullName), CNContactPhoneNumbersKey] as [Any]
let request = CNContactFetchRequest(keysToFetch: keysToFetch as! [CNKeyDescriptor])
var cnContacts = [CNContact]()


do {
try store.enumerateContacts(with: request){
(contact, cursor) -> Void in
cnContacts.append(contact)
}
} catch let error {
NSLog("Fetch contact error: \(error)")
}


print(">>>> Contact list:")
for contact in cnContacts {
let fullName = CNContactFormatter.string(from: contact, style: .fullName) ?? "No Name"
print("\(fullName): \(contact.phoneNumbers.description)")
}
})
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Update 1:
Here is the Swift 5 version:

lazy var contacts: [CNContact] = {
let contactStore = CNContactStore()
let keysToFetch: [CNKeyDescriptor] = [
CNContactFormatter.descriptorForRequiredKeys(for: .fullName),
CNContactPostalAddressesKey as CNKeyDescriptor,
CNContactEmailAddressesKey as CNKeyDescriptor,
CNContactPhoneNumbersKey as CNKeyDescriptor,
CNContactImageDataAvailableKey as CNKeyDescriptor,
CNContactThumbnailImageDataKey as CNKeyDescriptor]


// Get all the containers
var allContainers: [CNContainer] = []
do {
allContainers = try contactStore.containers(matching: nil)
} catch {
print("Error fetching containers")
}


var results: [CNContact] = []


// Iterate all containers and append their contacts to our results array
for container in allContainers {
let fetchPredicate = CNContact.predicateForContactsInContainer(withIdentifier: container.identifier)


do {
let containerResults = try contactStore.unifiedContacts(matching: fetchPredicate, keysToFetch: keysToFetch)
results.append(contentsOf: containerResults)
} catch {
print("Error fetching results for container")
}
}


return results
}()

Original Answer:
Here is the Swift 3.0 version of flohei's answer

lazy var contacts: [CNContact] = {
let contactStore = CNContactStore()
let keysToFetch = [
CNContactFormatter.descriptorForRequiredKeys(for: .fullName),
CNContactPostalAddressesKey,
CNContactEmailAddressesKey,
CNContactPhoneNumbersKey,
CNContactImageDataAvailableKey,
CNContactThumbnailImageDataKey] as [Any]
        

// Get all the containers
var allContainers: [CNContainer] = []
do {
allContainers = try contactStore.containers(matching: nil)
} catch {
print("Error fetching containers")
}
        

var results: [CNContact] = []
        

// Iterate all containers and append their contacts to our results array
for container in allContainers {
let fetchPredicate = CNContact.predicateForContactsInContainer(withIdentifier: container.identifier)
            

do {
let containerResults = try contactStore.unifiedContacts(matching: fetchPredicate, keysToFetch: keysToFetch as! [CNKeyDescriptor])
results.append(contentsOf: containerResults)
} catch {
print("Error fetching results for container")
}
}
        

return results
}()

Hope this helps!

小开

@flohei answer in Swift-4

 var contacts: [CNContact] = {
let contactStore = CNContactStore()
let keysToFetch = [
CNContactFormatter.descriptorForRequiredKeys(for: CNContactFormatterStyle.fullName),
CNContactEmailAddressesKey,
CNContactPhoneNumbersKey,
CNContactImageDataAvailableKey,
CNContactThumbnailImageDataKey] as [Any]


// Get all the containers
var allContainers: [CNContainer] = []
do {
allContainers = try contactStore.containers(matching: nil)
} catch {
print("Error fetching containers")
}


var results: [CNContact] = []


// Iterate all containers and append their contacts to our results array
for container in allContainers {
let fetchPredicate = CNContact.predicateForContactsInContainer(withIdentifier: container.identifier)


do {
let containerResults = try contactStore.unifiedContacts(matching: fetchPredicate, keysToFetch: keysToFetch as! [CNKeyDescriptor])
results.append(contentsOf: containerResults)
} catch {
print("Error fetching results for container")
}
}


return results
}()
小开

Just wanted to share this versions of Swift 4

info.plist:

<key>NSContactsUsageDescription</key>
<string>$(PRODUCT_NAME) requires to access your contacts ...</string>

module:

import Contacts

code:

func fetchContacts(completion: @escaping (_ result: [CNContact]) -> Void){
DispatchQueue.main.async {
var results = [CNContact]()
let keys = [CNContactGivenNameKey,CNContactFamilyNameKey,CNContactMiddleNameKey,CNContactEmailAddressesKey,CNContactPhoneNumbersKey] as [CNKeyDescriptor]
let fetchRequest = CNContactFetchRequest(keysToFetch: keys)
fetchRequest.sortOrder = .userDefault
let store = CNContactStore()
store.requestAccess(for: .contacts, completionHandler: {(grant,error) in
if grant{
do {
try store.enumerateContacts(with: fetchRequest, usingBlock: { (contact, stop) -> Void in
results.append(contact)
})
}
catch let error {
print(error.localizedDescription)
}
completion(results)
}else{
print("Error \(error?.localizedDescription ?? "")")
}
})
}
}

Usage:

fetchContacts(completion: {contacts in
contacts.forEach({print("Name: \($0.givenName), number: \($0.phoneNumbers.first?.value.stringValue ?? "nil")")})

You need to describe the usage info in info.plist first. I have added a check to determine user has granted the access to contacts then defined the keys (the values needed to be fetched). As said in one of the earlier answers that it's a time consuming process so I have added DispatchQueue for background processing and completion handler for returning the contacts array back to caller.

小开

Swift 4.2 . Fetch contact numbers with image 

info.plist file data
<key>NSContactsUsageDescription</key>
<string>$(PRODUCT_NAME) requires to access your contacts ...</string>






//MARK:- Fetch All Contacts of Phone
func fetchContacts(completion: @escaping (_ result: [CNContact]) -> Void){
DispatchQueue.main.async {
var results = [CNContact]()
let keys = [CNContactGivenNameKey,CNContactFamilyNameKey,CNContactMiddleNameKey,CNContactEmailAddressesKey,CNContactPhoneNumbersKey,CNContactThumbnailImageDataKey] as [CNKeyDescriptor]
let fetchRequest = CNContactFetchRequest(keysToFetch: keys)
fetchRequest.sortOrder = .userDefault
let store = CNContactStore()
store.requestAccess(for: .contacts, completionHandler: {(grant,error) in
if grant{
do {
try store.enumerateContacts(with: fetchRequest, usingBlock: { (contact, stop) -> Void in
results.append(contact)
})
}
catch let error {
print(error.localizedDescription)
}
completion(results)
}else{
print("Error \(error?.localizedDescription ?? "")")
}
})
}
}

}

Function Calling in Did Load Method

var arrpic = NSMutableArray()


override func viewDidLoad() {
super.viewDidLoad()


fetchContacts(completion: {contacts in
contacts.forEach({print("Name: \($0.givenName), number: \($0.phoneNumbers.first?.value.stringValue ?? "nil")")
self.arrfname.append("\($0.givenName)")
self.arrlname.append("\($0.familyName)")
self.arrnumber.append("\($0.phoneNumbers.first?.value.stringValue ?? "nil")")
var img = UIImage()
if $0.thumbnailImageData != nil
{
img = UIImage.init(data: $0.thumbnailImageData!)!
self.arrpic.add(img)
}
else
{
self.arrpic.add("")
}
})
if contacts.count > 0
{
self.tablev.reloadData()
}
})
}
小开

If you want to get ALL fields of a contact with known identifier:

let contact = unifiedContact(withIdentifier: identifier, keysToFetch: [CNContactVCardSerialization.descriptorForRequiredKeys()])

This gives you an access to ALL fields, such as adresses, phone numbers, full name, etc.

To retrieve fullName then:

let fullname = CNContactFormatter.string(from: contact, style: .fullName)

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