How to fetch all contacts record in iOS 9 using Contacts Framework

Question

Most part of AddressBook framework is deprecated in iOS 9. In the new Contacts Framework documentation only shows how to fetch records matches a NSPredicate, bu

Answer 1

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.

Answer 2

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()
        }
    })
}