如果由于手势识别器而旋转设备，程序将不再工作

Question

如果我按下按钮然后旋转我的设备，我的程序就不再有效了。我知道，手势识别器是问题，但我该如何解决呢？ 我将手势识别器添加到我的视图中，如果设备在横向模式下旋转，则手势识别器不再工作。有什么办法可以解决这个问题？ 这是一些代码：

// take a photo
@IBAction func takePhoto(sender: AnyObject) {
    self.fullScreenView.hidden = false
    self.recordButton.enabled = false
    self.takephoto.enabled = false
    self.recordButton.hidden = true
    self.takephoto.hidden = true

    session.startRunning()

    currentGesture = "Photo"

    // customize the quality level or bitrate of the output photo
    session.sessionPreset = AVCaptureSessionPresetPhoto

    // add the AVCaptureVideoPreviewLayer to the view and set the view in fullscreen
    fullScreenView.frame = view.bounds
    videoPreviewLayer.frame = fullScreenView.bounds
    fullScreenView.layer.addSublayer(videoPreviewLayer)

    // add action to fullScreenView
    gestureFullScreenView = UITapGestureRecognizer(target: self, action: #selector(ViewController.takePhoto(_:)))
    self.fullScreenView.addGestureRecognizer(gestureFullScreenView)

    // add action to myView
    gestureView = UITapGestureRecognizer(target: self, action: #selector(ViewController.setFrontpage(_:)))
    self.view.addGestureRecognizer(gestureView)

    if (preview == true) {
        if let videoConnection = stillImageOutput!.connectionWithMediaType(AVMediaTypeVideo) {
            // code for photo capture goes here...

            stillImageOutput?.captureStillImageAsynchronouslyFromConnection(videoConnection, completionHandler: { (sampleBuffer, error) -> Void in
                // process the image data (sampleBuffer) here to get an image file we can put in our view

                if (sampleBuffer != nil) {
                    let imageData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(sampleBuffer)
                    let image = UIImage(data: imageData, scale: 1.0)
                    var orientation: UIImageOrientation!


                    // image with the current orientation
                    let newImage = UIImage(CGImage: (image?.CGImage)!, scale: 1, orientation: orientation)

                    // remove the gesture recognizer and stop the current session
                    self.fullScreenView.hidden = true
                    self.fullScreenView.gestureRecognizers?.forEach(self.fullScreenView.removeGestureRecognizer)
                    self.session.stopRunning()

                    // save image to the library
                    UIImageWriteToSavedPhotosAlbum(newImage, nil, nil, nil)

                    self.imageViewBackground = UIImageView(frame: self.view.bounds)
                    self.imageViewBackground.image = newImage
                    self.imageViewBackground.tag = self.key

                    self.view.addSubview(self.imageViewBackground)
                }
            })
        }
    }
    else {
        preview = true
    }
}

在这里我设置了新框架：

override func viewWillLayoutSubviews() {
    // if the device rotates, set these components into fullscreen
    fullScreenView.frame = view.bounds
    videoPreviewLayer?.frame = view.bounds
    playerLayer?.frame = view.bounds
    imageViewBackground?.frame = view.bounds

    let orientation: UIDeviceOrientation = UIDevice.currentDevice().orientation
    switch (orientation) {
        case .Portrait:
            videoPreviewLayer?.connection.videoOrientation = .Portrait
            countLabel.frame = CGRectMake(width * 0.4, -(width * 0.24), height/2, (width/2) * 1.25)
        case .LandscapeRight:
            videoPreviewLayer?.connection.videoOrientation = .LandscapeLeft
            countLabel.frame = CGRectMake((width * 0.72), -(width * 0.26), height/2, (width/2) * 1.25)
        case .LandscapeLeft:
            videoPreviewLayer?.connection.videoOrientation = .LandscapeRight
            countLabel.frame = CGRectMake((width * 0.72), -(width * 0.26), height/2, (width/2) * 1.25)
        case .PortraitUpsideDown:
            videoPreviewLayer?.connection.videoOrientation = .PortraitUpsideDown
            countLabel.frame = CGRectMake(width * 0.4, -(width * 0.24), height/2, (width/2) * 1.25)
        default:
            videoPreviewLayer?.connection.videoOrientation = .Portrait
            countLabel.frame = CGRectMake(width * 0.4, -(width * 0.24), height/2, (width/2) * 1.25)

    }
}