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

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!