replaykit startrecording sometimes never enters completion handler

Question

I am using replay kit to save a video of my screen during gameplay but randomly on occasion startRecordingWithMicrophoneEnabled and recorder.stopRecordingWithHandler never enters the completion handler

it doesn't throw an error, it just runs and hangs indefinitely.

if recorder.available && recorder.microphoneEnabled {
    recorder.startRecordingWithMicrophoneEnabled(true) { [unowned self] (error) in
        if let unwrappedError = error {
            print(unwrappedError.localizedDescription)
        } else {
            print("called")
            self.manager.instructions.text = "Click to Start Game"
        }
    }
}

if recorder.available && recorder.microphoneEnabled {
    print("initiating stop recording")
    recorder.stopRecordingWithHandler { [unowned self] (RPPreviewViewController, error) in
        print("in completion handler")
        if let previewView = RPPreviewViewController {
            print("will transition to gameplay video")
            previewView.previewControllerDelegate = self
            self.presentViewController(previewView, animated: true, completion: nil)
            self.sessionHandler.session.stopRunning()
        }
    }
}

You need to check whether screen recorder and microphone is available before you call the startRecording. — Sachin Vas
microphone available check isn't there. You need the microphone and check doesn't exists. — Sachin Vas

Guaranteed Guaranteed · Accepted Answer · 2016-12-22T03:24:47

I was getting this same thing. Was working on one device, and not on another. Only difference was the working device was on iOS version 10.1.0 and the other was iOS version 10.0.2 - upgraded to 10.2.0 and it started working immediately.

replaykit startrecording sometimes never enters completion handler

2 Answers