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How to screen record swift stackoverflow

import ReplayKit

@IBAction func toggleRecording(_ sender: UIBarButtonItem) {
    let r = RPScreenRecorder.shared()

    guard r.isAvailable else {
        print("ReplayKit unavailable")
        return
    }
    
    if r.isRecording {
        self.stopRecording(sender, r)
        
    }
    else {
        self.startRecording(sender, r)
    }
}

func startRecording(_ sender: UIBarButtonItem, _ r: RPScreenRecorder) {
    
    r.startRecording(handler: { (error: Error?) -> Void in
        if error == nil { // Recording has started
            sender.title = "Stop"
        } else {
            // Handle error
            print(error?.localizedDescription ?? "Unknown error")
        }
    })
}

func stopRecording(_ sender: UIBarButtonItem, _ r: RPScreenRecorder) {
    r.stopRecording( handler: { previewViewController, error in

        sender.title = "Record"
        
        if let pvc = previewViewController {

            if UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiom.pad {
                pvc.modalPresentationStyle = UIModalPresentationStyle.popover
                pvc.popoverPresentationController?.sourceRect = CGRect.zero
                pvc.popoverPresentationController?.sourceView = self.view
            }

            pvc.previewControllerDelegate = self
            self.present(pvc, animated: true, completion: nil)
        }
        else if let error = error {
            print(error.localizedDescription)
        }
        
    })
}

// MARK: RPPreviewViewControllerDelegate
func previewControllerDidFinish(_ previewController: RPPreviewViewController) {
    previewController.dismiss(animated: true, completion: nil)
}

Source: stackoverflow.com

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