Ios 根据设备方向旋转视频预览层。Xcode Swift

我一直在尝试让我的实时视频提要（相机预览层）在设备旋转时旋转方向。我完全卡住了。我在下面提供了我当前的代码

注意：此应用程序是iMessage扩展，不是普通应用程序

我当前的代码：

 func setupPreviewLayer() {
        cameraPreviewLayer = AVCaptureVideoPreviewLayer(session: captureSession)
        cameraPreviewLayer?.videoGravity = AVLayerVideoGravity.resizeAspect
        orientationChange()
        cameraPreviewLayer?.frame.size.height = self.view.frame.size.height / 2
        cameraPreviewLayer?.frame.size.width = self.view.frame.size.width / 2
        liveVideoFeedPosition()
        cameraPreviewLayer?.position.x = self.view.frame.width / 2
        cameraPreviewLayer?.position.y = self.view.frame.height / 4  //- 33 original
        self.view.layer.addSublayer(cameraPreviewLayer!)
    }

**不连续

 func liveVideoFeedPosition() {
        if presentationStyle == MSMessagesAppPresentationStyle.compact {
            holoLogo.isHidden = true
            cameraPreviewLayer?.position.x = self.view.frame.width / 2
            cameraPreviewLayer?.position.y = self.view.frame.height / 4  //+33 original
        }
        if presentationStyle == MSMessagesAppPresentationStyle.expanded {
            holoLogo.isHidden = false
            cameraPreviewLayer?.position.x = self.view.frame.width / 2
            cameraPreviewLayer?.position.y = self.view.frame.height / 2  //- 27 original
        }
        self.OutlineImage.center.y = self.view.center.y // - 27 original
        self.OutlineImage.center.x = self.view.center.x
        self.view.addSubview(OutlineImage)
    }

**不连续

 override func didRotate(from fromInterfaceOrientation: UIInterfaceOrientation) {

        if UIDevice.current.orientation == .portrait {
            captureSession.stopRunning()
            self.view.layer.sublayers?.removeAll()
            orientation = "Portrait"
            setupInputOutput()
            setupPreviewLayer()
            captureSession.startRunning()
        }
        if UIDevice.current.orientation == .portraitUpsideDown {
            captureSession.stopRunning()
            self.view.layer.sublayers?.removeAll()
            orientation = "Portrait UpsideDown"
            setupInputOutput()
            setupPreviewLayer()
            captureSession.startRunning()
        }

        if UIDevice.current.orientation == .landscapeLeft {
            captureSession.stopRunning()
            self.view.layer.sublayers?.removeAll()
            orientation = "Landscape Left"
            setupInputOutput()
            setupPreviewLayer()
            captureSession.startRunning()
        }
        if UIDevice.current.orientation == .landscapeRight {
            captureSession.stopRunning()
            self.view.layer.sublayers?.removeAll()
            orientation = "Landscape Right"
            setupInputOutput()
            setupPreviewLayer()
            captureSession.startRunning()
        }
        liveVideoFeedPosition()
    }

var orientation = "Portrait"

    func orientationChange() {
        if orientation == "Portrait" {
            cameraPreviewLayer?.connection?.videoOrientation = .portrait
        }
        if orientation == "Portrait UpsideDown" {
            cameraPreviewLayer?.connection?.videoOrientation = .portraitUpsideDown
        }
        if orientation == "Landscape Right" {
            cameraPreviewLayer?.connection?.videoOrientation = .landscapeRight
        }
        if orientation == "Landscape Left" {
            cameraPreviewLayer?.connection?.videoOrientation = .landscapeLeft
        }
    }

**不连续

 override func didRotate(from fromInterfaceOrientation: UIInterfaceOrientation) {

        if UIDevice.current.orientation == .portrait {
            captureSession.stopRunning()
            self.view.layer.sublayers?.removeAll()
            orientation = "Portrait"
            setupInputOutput()
            setupPreviewLayer()
            captureSession.startRunning()
        }
        if UIDevice.current.orientation == .portraitUpsideDown {
            captureSession.stopRunning()
            self.view.layer.sublayers?.removeAll()
            orientation = "Portrait UpsideDown"
            setupInputOutput()
            setupPreviewLayer()
            captureSession.startRunning()
        }

        if UIDevice.current.orientation == .landscapeLeft {
            captureSession.stopRunning()
            self.view.layer.sublayers?.removeAll()
            orientation = "Landscape Left"
            setupInputOutput()
            setupPreviewLayer()
            captureSession.startRunning()
        }
        if UIDevice.current.orientation == .landscapeRight {
            captureSession.stopRunning()
            self.view.layer.sublayers?.removeAll()
            orientation = "Landscape Right"
            setupInputOutput()
            setupPreviewLayer()
            captureSession.startRunning()
        }
        liveVideoFeedPosition()
    }

var orientation = "Portrait"

    func orientationChange() {
        if orientation == "Portrait" {
            cameraPreviewLayer?.connection?.videoOrientation = .portrait
        }
        if orientation == "Portrait UpsideDown" {
            cameraPreviewLayer?.connection?.videoOrientation = .portraitUpsideDown
        }
        if orientation == "Landscape Right" {
            cameraPreviewLayer?.connection?.videoOrientation = .landscapeRight
        }
        if orientation == "Landscape Left" {
            cameraPreviewLayer?.connection?.videoOrientation = .landscapeLeft
        }
    }

---

所有这些代码都不是一个特定的顺序。

我不想表现得粗鲁或其他什么，但如果你不明白，你可以尝试设置一个特定的方向。@E.Huckabee这是我最初的计划。因为它是iMessage扩展，所以必须支持所有方向。如果我在应用程序第一次启动时设置方向，它会工作，但如果设备旋转，它不会改变。这就像我设置后无法更改它一样。很抱歉，我没有理解它是iMessage扩展的部分。我会调查一下，看看我能做些什么。