Channelize Voice And Video SDK Documentation

Enable or Disable Calling Feature

If you are Using both API and UI SDK, then it is Already integrated in UI SDK. You can enable or Disable this feature in UI SDK customization by using below code

CHCustomOptions.enableVoiceVideo = true // TRUE => Enabled , FALSE => Disabled

Outgoing Call Procedure:

If you are not using Channelize UI SDK, to make a outgoing call follow below procedure

Create a call Object

You have to create a CHActiveCall object by calling below method

/*
Parameters Required
1. user : Type => CHUser, Required => Yes, Description => User with whom you are making Call
2. type : Type => CallScreen, Required => Yes, Description => Type of call, Possible Values => .voice or .video
*/
let userObject : CHUser = currentConversationUser
let callType : CallScreen = .video
let callObject = ChVoiceVideo.getCallObject(user: userObject, type: callType)

Launch Call UI

After creating call object, call below method to start a outgoing Call

/*
Parameters Required
1. navigationContoller : Type => UINavigationController, Required => Yes
2. activeCall : Type => CHActiveCall, Required => Yes, Description => call Object Created above
*/
ChVoiceVideo.launchCallViewController(navigationController: UINAVIGATIONCONTROLLER,activeCall:CALL_OBJECT)

Incoming Call Procedure

To handle Incoming call,make sure Background Modes are on in your app with Voice over Ip,Background Fetch options are enabled

To handle incoming call, Channelize is using Pushkit and Callkit frameworks. To Handle incoming call open your AppDelegate.swift file, import Pushkit framework.

1. Create a variable for push registry

let pushRegistry = PKPushRegistry(queue: DispatchQueue.main)

2.In didFinishLaunchingWithOptions method paste following code

pushRegistry.delegate = self
pushRegistry.desiredPushTypes = [.voIP]

3. Confirm AppDelegate class to PKPushRegistryDelegate protocols and paste following code:

func pushRegistry(_ registry: PKPushRegistry, didUpdate pushCredentials: PKPushCredentials, for type: PKPushType) {
    let deviceToken = pushCredentials.token.reduce("", {$0 + String(format: "%02X", $1) })
    debugPrint("Token recieved - ",deviceToken)
    Channelize.updateVoipToken(token: deviceToken)
}

func pushRegistry(_ registry: PKPushRegistry, didReceiveIncomingPushWith payload: PKPushPayload, for type: PKPushType) {
    if let callId = payload.dictionaryPayload["callId"] as? String{
        if let uid = payload.dictionaryPayload["userId"] as? String{
            if let uuidString = payload.dictionaryPayload["uuid"] as? String{
                if let uuid = UUID(uuidString: uuidString){
                    let call = CHActiveCall(uuid: uuid, callId: callId, uid: uid, isOutgoing: false)
                    call.displayName = payload.dictionaryPayload["displayName"] as? String
                    call.profileImageUrl = payload.dictionaryPayload["profileImageUrl"] as? String
                    if let callType = payload.dictionaryPayload["type"] as? String{
                        if callType == "video"{
                            call.type = .video
                        }
                    }
                    let backgroundTaskIdentifier = UIApplication.shared.beginBackgroundTask(expirationHandler: nil)
                    if CHCustomOptions.enableCallModule{
                        ChVoiceVideo.showIncomingCall(call: call, completion: {_ in
                                UIApplication.shared.endBackgroundTask(backgroundTaskIdentifier)
                        })
                    }
                }
            }
        }
    }
}

func pushRegistry(_ registry: PKPushRegistry, didInvalidatePushTokenFor type: PKPushType) {
    print("\(#function) token invalidated")
}