ios - 捕获后如何更改图像的方向？

Question

这是我在自定义相机中用于拍摄照片的代码，但它可以正确拍摄照片，但如果假设用户旋转设备(但相机仍会像 iphone 相机一样纵向拍摄)并拍照，我想要纵向拍摄照片。怎么能我这样做？

        let stillImageOutput = self._getStillImageOutput()

        if let videoConnection = stillImageOutput.connection(withMediaType: AVMediaTypeVideo) {

     //   videoConnection.videoOrientation = AVCaptureVideoOrientation.portrait

        stillImageOutput.captureStillImageAsynchronously(from: videoConnection , completionHandler: { [weak self] sample, error in

            if let error = error {
                DispatchQueue.main.async(execute: {
                    self?._show(NSLocalizedString("Error", comment:""), message: error.localizedDescription)
                })
                imageCompletion(nil,error as NSError?)
                return
            }

            let imageData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(sample)

             var capturedImage = UIImage(data: imageData!)[![This how photo showing if i capture by rotating Device][1]][1]

Answer 1

在初始化 videoConnection 之后添加下面的代码就可以了

switch UIDevice.current.orientation {
                case .landscapeLeft:
                    videoConnection.videoOrientation = AVCaptureVideoOrientation.landscapeRight
                    break
                case .landscapeRight:
                    videoConnection.videoOrientation = AVCaptureVideoOrientation.landscapeLeft
                    break
                case .portrait:
                     videoConnection.videoOrientation = AVCaptureVideoOrientation.portrait
                    break
                case .portraitUpsideDown:
                    videoConnection.videoOrientation = AVCaptureVideoOrientation.portraitUpsideDown
                    break
                default:
                    videoConnection.videoOrientation = AVCaptureVideoOrientation.portrait
                    break
                }