Programmatically delete custom phone labels

问题

In iOS it is possible to create custom labels for phone numbers and email addresses. Is there a way to remove those created labels programatically (either with CNContacts or ABAddressBook)? In other words: I don't want to delete the custom label from a contact, I want to delete the "custom label" from the system so it doesn't show up at all when someone brings up the available available list.

Attached iOS 9 source code that creates a contact in the phone book with custom labels on the email field.

func createContact() {

    let contactStore = CNContactStore()
    let newContact = CNMutableContact()

    newContact.givenName = "Chris"
    newContact.familyName = "Last"

    let homeEmail = CNLabeledValue(label: "RandomLabel", value: "IGotAnEmail@Address.com")
    newContact.emailAddresses = [homeEmail]

    do {
        let saveRequest = CNSaveRequest()
        saveRequest.addContact(newContact, toContainerWithIdentifier: nil)
        try contactStore.executeSaveRequest(saveRequest)
    }
    catch {
        NSLog("Save failed")
    }
}

回答1:

Contact Framework + deleteContact

This might help you.

Using this function

EDIT: I'm in a good day:

NSOperationQueue().addOperationWithBlock{[unowned store] in
  let predicate = CNContact.predicateForContactsMatchingName("john")
  let toFetch = [CNContactEmailAddressesKey]

  do{

    let contacts = try store.unifiedContactsMatchingPredicate(predicate,
      keysToFetch: toFetch)

    guard contacts.count > 0 else{
      print("No contacts found")
      return
    }

    //only do this to the first contact matching our criteria
    guard let contact = contacts.first else{
      return
    }

    let req = CNSaveRequest()
    let mutableContact = contact.mutableCopy() as! CNMutableContact
    req.deleteContact(mutableContact)

    do{
      try store.executeSaveRequest(req)
      print("Successfully deleted the user")

    } catch let e{
      print("Error = \(e)")
    }

  } catch let err{
    print(err)
  }
}

EDIT: It seems you can but you need to do batch function like this:

fetch contacts using AddressBook/ABAddressBookCopyArrayOfAllPeople
For...in into contacts
get the ABRecordCopyValue to get the ABMultiValueRef you want
- kABPersonEmailProperty
- kABPersonAddressProperty
- kABPersonPhoneProperty
For...in into them
Get the current with ABMultiValueCopyLabelAtIndex
Compare it to the default labels (note here to get the default one)
if no match, delete it

Hope it helps you

EDIT 2: Meh, ABAddressBook is deprecated, you need to do the same with New contact framework ... Have fun !!

来源：https://stackoverflow.com/questions/32949384/programmatically-delete-custom-phone-labels

标签

ios

iphone

abaddressbook

cncontact