How can access contact identifier from callKit - ios

Question

I start callkit call with this code:
private func startCallKitCall(call: Call, completion: #escaping (Bool) -> ()){
let handle = CXHandle(type: .phoneNumber, value: call.handle)
let startCallAction = CXStartCallAction(call: call.uuid, handle: handle)
startCallAction.isVideo = call.hasVideo
startCallAction.contactIdentifier = call.uuid.uuidString
let transaction = CXTransaction(action: startCallAction)
requestCallKitTransaction(transaction, completionHandler: { success in
completion(success)
})
}
in contactIdentifier I set the user UUID, then in provider, update the caller remote name:
public func provider(_ provider: CXProvider, perform action: CXStartCallAction) {
let update = CXCallUpdate()
update.remoteHandle = action.handle
update.hasVideo = action.isVideo
update.localizedCallerName = "TestCallName"
self.provider!.reportCall(with: action.callUUID, updated: update)
action.fulfill()
}
I use "TestCallName" as localizedCallerName, now on recent call of my phone, I see a row named "TestCallName", If I click it, I call this method on appdelegate:
func application(_ application: UIApplication, continue userActivity: NSUserActivity, restorationHandler: #escaping ([Any]?) -> Void) -> Bool {
if (userActivity.activityType == "INStartAudioCallIntent"){
guard let interaction = userActivity.interaction else {
return false
}
var personHandle: INPersonHandle?
if let startVideoCallIntent = interaction.intent as? INStartVideoCallIntent {
personHandle = startVideoCallIntent.contacts?[0].personHandle
} else if let startAudioCallIntent = interaction.intent as? INStartAudioCallIntent {
personHandle = startAudioCallIntent.contacts?[0].personHandle
print(startAudioCallIntent.contacts?[0])
}
print(personHandle!.value)
} else if (userActivity.activityType == "INStartVideoCallIntent"){
} else {
print("called userActivity: \(userActivity.activityType), but not yet supported.")
}
return true
}
but the output I obtain is:
Optional(<INPerson: 0x1742a5280> {
contactIdentifier = "<null>";
customIdentifier = "<null>";
displayName = "<null>";
image = "<null>";
nameComponents = "<null>";
personHandle = "<INPersonHandle: 0x17402f0c0> {\n label = \"<null>\";\n type = PhoneNumber;\n value = \"TestCallName\";\n}";
relationship = "<null>";
siriMatches = "<null>";
})
Optional("TestCallName")
i see only the name "TestCallName", but contact identifier is "null", how can I fix this? I see there is also a field name "customIdentifier", can I use this?
thanks!

Answer 1

The contactIdentifier is the ID of the contact in contacts app. The one you set into startCallAction.contactIdentifier means nothing. To call a user you need to use either phone or email or at least name.