Presenter Mode

// jwtToken requires in the 3rd step. so when user get from the generate token
// store in jwtToken variable.
var callToken: String?

CometChatCalls.generateToken(authToken: authToken as NSString, sessionID: sessionId) { (token, error)  in
            if let token = token {
                self.callToken = token
            } else if let error = error {
                print(error)
            }
}

// In the callSettings, User have to configure the callingView.
// callSettings is required to start call.

let presenterSettings = CometChatCalls.presentationSettingsBuilder
                    .setIsPresenter(true)
                    .setDelegate(self) //class that confroms to CallsEventsDelegate
                    .setStartAudioMuted(true)
                    .setDefaultAudioMode("BLUETOOTH")
                    .build()

let callToken: String = self.callToken//Received on generate token onSuccess
let callView: UIView = self.callUIView// a UIView you want to show the calling view in


CometChatCalls.joinPresentation(callToken: callToken, presenterSettings: presenterSettings, view: callView) { success in
    print("success joinPresentation \(success)")
} onError: { error in
    print("error joinPresentation \(error?.errorCode)")
}

// These events will trigger only if user set the setDelegate(self) in callSettings.

extension ViewController: CallsEventsDelegate {

    func onCallEnded() {
        print("onCallEnded")
    }

    func onCallEndButtonPressed() {
        print("onCallEndButtonPressed")
    }

    func onUserJoined(user: NSDictionary) {
        print("onUserJoined")
    }

    func onUserLeft(user: NSDictionary) {
        print("onUserLeft")
    }

    func onUserListChanged(userList: NSArray) {
        print("onUserListChanged")
    }

    func onAudioModeChanged(audioModeList: NSArray) {
        print("onAudioModeChanged")
    }

    func onCallSwitchedToVideo(info: NSDictionary) {
        print("onCallSwitchedToVideo")
    }

    func onUserMuted(info: NSDictionary) {
        print("onUserMuted")
    }

    func onRecordingToggled(info: NSDictionary) {
        print("onRecordingToggled")
    }
}