将Uikit ImagePicker转换为Swiftui

Question

我发现很难转换它，以便在Swiftui视图中起作用。我尝试了自己的变体，但是功能“ getVideofromcamerarololl”具有“ on” on oon on on'on's oon'''''''''''on on oon'ons oon oon'''''''swiftui视图中的'''''''''''''on on oon on on on ons on on on on on on on on on ons of swiftui视图不起作用，因为它是uiviewController而不是contentView。感谢我能获得的所有帮助，我对此相对较新:(

此图像选择器可以拍摄视频并为该视频生成缩略图。

class PhotoServices: NSObject {
static let shared = PhotoServices()

internal var completion: ((URL)->Void)!
internal let picker = UIImagePickerController()

override init() {
    
    super.init()
    
    self.picker.allowsEditing = false
    self.picker.modalPresentationStyle = .fullScreen
    self.picker.mediaTypes = UIImagePickerController.availableMediaTypes(for: .photoLibrary)!
    self.picker.delegate = self
    
}

   func getVideoFromCameraRoll(on: UIViewController, completion: @escaping (_ image: URL)->()) {
    
    self.picker.sourceType = .photoLibrary
    self.picker.mediaTypes = [kUTTypeMovie as String]
    
    DispatchQueue.main.async {
        on.present(self.picker, animated: true) {
            self.completion = completion
             }
          }
       }
    }


   //// MARK: UIImagePickerControllerDelegate methods

   extension PhotoServices: UIImagePickerControllerDelegate, 
   UINavigationControllerDelegate {
   func imagePickerController(_ picker: UIImagePickerController, 
     didFinishPickingMediaWithInfo info: [String : Any]) {
    
    if let url = info[UIImagePickerControllerMediaURL] as? URL {
        
        DispatchQueue.main.async {
            self.picker.dismiss(animated: true) {
                
                self.completion(url)
                
                }
            }
         }
      }
   }

////// MARK: Thumbnail
  extension PhotoServices {


func getThumbnailFrom(path: URL) -> UIImage? {
    
    do {
        
        let asset = AVURLAsset(url: path , options: nil)
        let imgGenerator = AVAssetImageGenerator(asset: asset)
        imgGenerator.appliesPreferredTrackTransform = true
        let cgImage = try imgGenerator.copyCGImage(at: CMTimeMake(0, 1), actualTime: 
nil)
        let thumbnail = UIImage(cgImage: cgImage)
        
        return thumbnail
        
    } catch let error {
        
        print("*** Error generating thumbnail: \(error.localizedDescription)")
        return nil
        
         }
     }
  }