ReplayKit.swift

extension ViewController: RPBroadcastActivityViewControllerDelegate {
    func broadcastActivityViewController(_ broadcastActivityViewController: RPBroadcastActivityViewController, didFinishWith broadcastController: RPBroadcastController?, error: Error?) {
        // Step 1
        guard error == nil else {
            print("Broadcast Activity Controller is not available.")
            return
        }
        
        // Step 2
        broadcastActivityViewController.dismiss(animated: true) {
            // Step 3
            broadcastController?.startBroadcast { error in
                // Step 4
                if error == nil {
                    print("Broadcast started successfully!")
                }
            }
        }
    }
}