How to display CNContact using CNContactViewController

Question

Created Sep ’15

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I am trying to display CNContact on the new CNContactViewController. I am always getting "No Card Selected". I tried this with unsaved contact (no go). Also tried with saved+fetched from CNContactStore also no go. Tried with "me" contact but the same result. According to the debugger fetched contact is loaded with correct values and is not nil/empty. App is sandboxed and correctly asks for Contacts permission.

I know that under the hood Apple uses still ABPersonView, namely ABRemotePersonView. El Cap in addition created XPC service to display person. This is the reason I cannot stick with old AddressBook framework because e.g. ABPersonView returns each time new person object (due to CN -> AB conversion) and ABPersonView doesn't respect person's imageData.

Here is sample:

    #import <Contacts/Contacts.h>
    #import <ContactsUI/ContactsUI.h>
    #import "AppDelegate.h"
  
    @interface AppDelegate ()
  
    @property (weak) IBOutlet NSWindow *window;
    @property (strong)  CNContact *contact;
    @property (strong)  CNContactViewController *controller;
    @end
  
    @implementation AppDelegate
  
    - (instancetype)init {
      self = [super init];
      if (self) {
        _controller = [[CNContactViewController alloc] init];
      
      }
      return self;
    }
  
    - (void)awakeFromNib
    {
      CNContactStore *store = [[CNContactStore alloc] init];
      CNMutableContact *mutContact = [[CNMutableContact alloc] init];
      NSString *identifier = [mutContact identifier];
      mutContact.givenName = @"GivenName";
      mutContact.familyName = @"FamilyName";
      CNSaveRequest *saveRequest = [[CNSaveRequest alloc] init];
      [saveRequest addContact:mutContact toContainerWithIdentifier:[store defaultContainerIdentifier]];
      [store executeSaveRequest:saveRequest error:nil];
    
      id keysToFetch = @[[CNContactViewController descriptorForRequiredKeys]];
      _contact = [store unifiedContactWithIdentifier:identifier keysToFetch:keysToFetch error:nil];
    
      dispatch_async(dispatch_get_main_queue(), ^{
        self.controller.contact = self.contact;
        self.window.contentViewController = self.controller;
        self.window.contentView = self.controller.view;
      });
    }
    @end

Boost

Answer 1

TommieC OP

Sep ’15

This displays a new contact in edit-mode just fine:

import UIKit
import ContactsUI
class ViewController: UIViewController, CNContactViewControllerDelegate {
   let store = CNContactStore()
    ...
    override func viewDidLoad() {
        super.viewDidLoad()
        /
      
        let contact = CNMutableContact()
      
        contact.givenName = "John"
        contact.familyName = "Smith"
      
      
        let contactVC =
        CNContactViewController(forNewContact:  contact)
      
        self.presentViewController(contactVC, animated: true, completion: nil)
      
    }
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        /
    }
}
...
self.store.requestAccessForEntityType(.Contacts, completionHandler: { (granted, error) in
              
                if (granted) {
                    do {
                        let completeContact = try self.store.unifiedContactWithIdentifier(contact.identifier, keysToFetch: [CNContactViewController.descriptorForRequiredKeys()])
                       
                        dispatch_async(dispatch_get_main_queue(), {
                            self.showContact(completeContact)
                        })
                       
                    } catch let e as NSError {
                        print(e.localizedDescription)
                        print(e.localizedRecoveryOptions)
               
                    }
                }
            })

Mine is in a view controller while yours appears in the app delegate. Not sure if that is the cause or not but you might consider moving code to a UIViewController. Although it's in Swift, this should translate fairly simply to Objc. I deal with the saveRequest and other methods after I confirm that the user has given permission to access their contacts.

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