ios - 如何在spritekit中录制游戏场景

Question

我有一个使用 SpriteKit 的项目。我看过 ReplayKit 的 WWDC15 视频。 我将 ReplayKit 添加到我的项目中，我想记录我的 GameScene 并在 Facebook 上分享它，在相机胶卷中保存更多……等等。

现在没有任何功能，但我添加了功能并整理了所有内容。

谢谢!

开始录制

func startScreenRecording() {
    // Do nothing if screen recording hasn't been enabled.

    let sharedRecorder = RPScreenRecorder.sharedRecorder()

    // Register as the recorder's delegate to handle errors.
    sharedRecorder.delegate = self

    sharedRecorder.startRecordingWithMicrophoneEnabled(true) { error in
        if let error = error {
            self.showScreenRecordingAlert(error.localizedDescription)
        }
    }
}

停止录制

func stopScreenRecordingWithHandler(handler:(() -> Void)) {
    let sharedRecorder = RPScreenRecorder.sharedRecorder()

    sharedRecorder.stopRecordingWithHandler { (previewViewController: RPPreviewViewController?, error: NSError?) in
        if let error = error {
            // If an error has occurred, display an alert to the user.
            self.showScreenRecordingAlert(error.localizedDescription)
            return
        }

        if let previewViewController = previewViewController {
            // Set delegate to handle view controller dismissal.
            previewViewController.previewControllerDelegate = self

            /*
            Keep a reference to the `previewViewController` to
            present when the user presses on preview button.
            */
            self.presentViewController(previewViewController, animated: true, completion: nil)
        }

        handler()
    }
}

ReplayKit的其他功能

  func showScreenRecordingAlert(message: String) {
        // Pause the scene and un-pause after the alert returns.

        GameScene().paused = true

        // Show an alert notifying the user that there was an issue with starting or stopping the recorder.
        let alertController = UIAlertController(title: "ReplayKit Error", message: message, preferredStyle: .Alert)

        let alertAction = UIAlertAction(title: "OK", style: UIAlertActionStyle.Default) { _ in

            GameScene().paused = false
        }
        alertController.addAction(alertAction)

        /*
        `ReplayKit` event handlers may be called on a background queue. Ensure
        this alert is presented on the main queue.
        */
        dispatch_async(dispatch_get_main_queue()) {
            self.view?.window?.rootViewController?.presentViewController(alertController, animated: true, completion: nil)
        }
    }

    func discardRecording() {
        // When we no longer need the `previewViewController`, tell `ReplayKit` to discard the recording and nil out our reference
        RPScreenRecorder.sharedRecorder().discardRecordingWithHandler {
            self.previewViewController = nil
        }
    }

    // MARK: RPScreenRecorderDelegate

    func screenRecorder(screenRecorder: RPScreenRecorder, didStopRecordingWithError error: NSError, previewViewController: RPPreviewViewController?) {
        // Display the error the user to alert them that the recording failed.
        showScreenRecordingAlert(error.localizedDescription)

        /// Hold onto a reference of the `previewViewController` if not nil.
        if previewViewController != nil {
            self.previewViewController = previewViewController
        }
    }

    // MARK: RPPreviewViewControllerDelegate

    func previewControllerDidFinish(previewController: RPPreviewViewController) {
        previewViewController?.dismissViewControllerAnimated(true, completion: nil)
    }

游戏场景

import SpriteKit
import ReplayKit

class GameScene: SKScene , SKPhysicsContactDelegate{

func addRecordButton() {

RecordButton = SKSpriteNode(imageNamed:"Record-Off.png")
RecordButton.name = "RecordButton"
RecordButton.position = CGPoint(x: self.size.width/2 + 185, y: self.size.height/2 + 285)
RecordButton.size = CGSizeMake(32,32)
addChild(RecordButton)

}

func Record() {
let recorder = RPScreenRecorder.sharedRecorder()
if recorder.available{
RecordButton.texture = SKTexture(imageNamed: "Record-On.png")
print("Record")
} else {
RecordButton.texture = SKTexture(imageNamed: "Record-Off.png")
print("Stop Record")
}
  }

    override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {

                 for touch in touches {
                 let location = touch.locationInNode(self)

                    if {
                    if (RecordButton.containsPoint(location)){
                            Record()
                        }
                }

            }

Answer 1

class ViewController: UIViewController, RPScreenRecorderDelegate, RPPreviewViewControllerDelegate {

    @IBOutlet weak var startRecordingButton: UIButton!
    @IBOutlet weak var stopRecordingButton: UIButton!
    @IBOutlet weak var activityView: UIActivityIndicatorView!

    private let recorder = RPScreenRecorder.sharedRecorder()


    override func viewWillAppear(animated: Bool) {
        super.viewWillAppear(animated)

        if SIMULATOR {
            NSTimer.scheduledTimerWithTimeInterval(1, target: self, selector: #selector(self.showSimulatorWarning), userInfo: nil, repeats: false)
            return
        }
    }

    override func viewDidLoad() {
        super.viewDidLoad()


        recorder.delegate = self
        activityView.hidden = true
        buttonEnabledControl(recorder.recording)
    }

    @IBAction func startRecordingAction(sender: AnyObject) {
        activityView.hidden = false

        // start recording
        recorder.startRecordingWithMicrophoneEnabled(true) { [unowned self] (error) in
            dispatch_async(dispatch_get_main_queue()) {
                [unowned self] in
                self.activityView.hidden = true
            }

            if let error = error {
                print("Failed start recording: \(error.localizedDescription)")
                return
            }

            print("Start recording")
            self.buttonEnabledControl(true)


        }
    }

    @IBAction func stopRecordingAction(sender: AnyObject) {
        activityView.hidden = false

        //end recording
        recorder.stopRecordingWithHandler({ [unowned self] (previewViewController, error) in
            dispatch_async(dispatch_get_main_queue()) {
                self.activityView.hidden = true
            }

            self.buttonEnabledControl(false)

            if let error = error {
                print("Failed stop recording: \(error.localizedDescription)")
                return
            }

            print("Stop recording")
            previewViewController?.previewControllerDelegate = self



            dispatch_async(dispatch_get_main_queue()) { [unowned self] in
                // show preview vindow
                self.presentViewController(previewViewController!, animated: true, completion: nil)
            }
        })
    }

    //MARK: - Helper
    //control the enabled each button
    private func buttonEnabledControl(isRecording: Bool) {
        dispatch_async(dispatch_get_main_queue()) { 
            [unowned self] in

            let enabledColor = UIColor(red: 0.0, green: 122.0/255.0, blue: 1.0, alpha: 1.0)
            let disabledColor = UIColor.lightGrayColor()

            if !self.recorder.available {
                self.startRecordingButton.enabled = false
                self.startRecordingButton.backgroundColor = disabledColor
                self.stopRecordingButton.enabled = false
                self.stopRecordingButton.backgroundColor = disabledColor

                return
            }

            self.startRecordingButton.enabled = !isRecording
            self.startRecordingButton.backgroundColor = isRecording ? disabledColor : enabledColor
            self.stopRecordingButton.enabled = isRecording
            self.stopRecordingButton.backgroundColor = isRecording ? enabledColor : disabledColor
        }
    }


    func showSimulatorWarning() {
        let actionOK = UIAlertAction(title: "OK", style: .Default, handler: nil)
//        let actionCancel = UIAlertAction(title: "cancel", style: .Cancel, handler: nil)

        let alert = UIAlertController(title: "ReplayKit不支持模拟器", message: "请使用真机运行这个Demo工程", preferredStyle: .Alert)
        alert.addAction(actionOK)
//        alert.addAction(actionCancel)
        self.presentViewController(alert, animated: true, completion: nil)
    }

    func showSystemVersionWarning() {
        let actionOK = UIAlertAction(title: "OK", style: .Default, handler: nil)
        let alert = UIAlertController(title: nil, message: "系统版本需要是iOS9.0及以上才支持ReplayKit", preferredStyle: .Alert)
        alert.addAction(actionOK)
        self.presentViewController(alert, animated: true, completion: nil)
    }



    // MARK: - RPScreenRecorderDelegate
    // called after stopping the recording
    func screenRecorder(screenRecorder: RPScreenRecorder, didStopRecordingWithError error: NSError, previewViewController: RPPreviewViewController?) {
        print("Stop Recording ...\n");
    }

    // called when the recorder availability has changed
    func screenRecorderDidChangeAvailability(screenRecorder: RPScreenRecorder) {
        let availability = screenRecorder.available
        print("Availability: \(availability)\n");
    }

    // MARK: - RPPreviewViewControllerDelegate
    // called when preview is finished
    func previewControllerDidFinish(previewController: RPPreviewViewController) {
        print("Preview finish");

        dispatch_async(dispatch_get_main_queue()) { 
            [unowned previewController] in
            // close preview window
            previewController.dismissViewControllerAnimated(true, completion: nil)
        }
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
}