Ios swift相机图像拾取器旋转问题

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
    if let image = info[.originalImage] as? UIImage {
        if let metadata = info[.mediaMetadata] as? [String: Any],
           let orientation = metadata["Orientation"] as? Int {
            // 根据方向信息调整图像方向
            var newImage = image
            switch orientation {
            case 3:
                newImage = newImage.rotate(radians: .pi)
            case 6:
                newImage = newImage.rotate(radians: .pi / 2)
            case 8:
                newImage = newImage.rotate(radians: -.pi / 2)
            default:
                break
            }
            
            // 使用调整后的图像进行后续操作
            // ...
        }
    }
    
    picker.dismiss(animated: true, completion: nil)
}

extension UIImage {
    func rotate(radians: CGFloat) -> UIImage {
        let rotatedSize = CGRect(origin: .zero, size: size)
            .applying(CGAffineTransform(rotationAngle: radians))
            .integral.size
        UIGraphicsBeginImageContext(rotatedSize)
        if let context = UIGraphicsGetCurrentContext() {
            let origin = CGPoint(x: rotatedSize.width / 2.0,
                                 y: rotatedSize.height / 2.0)
            context.translateBy(x: origin.x, y: origin.y)
            context.rotate(by: radians)
            draw(in: CGRect(x: -size.width / 2.0,
                            y: -size.height / 2.0,
                            width: size.width,
                            height: size.height))
            let rotatedImage = UIGraphicsGetImageFromCurrentImageContext()
            UIGraphicsEndImageContext()
            return rotatedImage ?? self
        }
        return self
    }
}