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

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.