launchPicker method

Implementation

@override
Future<File?> launchPicker(List<IDetectable>? detectors) async
{
  try
  {
    file_picker.FilePickerResult? result = await file_picker.FilePicker.platform.pickFiles(withReadStream: true, type: (accept == null) || (accept!.isEmpty) ? file_picker.FileType.any : file_picker.FileType.custom, allowedExtensions: accept);
    if (result != null)
    {
      // set file
      XFile  file = XFile(result.files.single.path!);
      String url  = "file:${file.path}";
      String type = (await S.mimetype(file.path)).toLowerCase();
      String name = basename(file.path);
      int    size = await file.length();

      // detect in image
      if ((detectors != null) && (type.startsWith("image")))
      {
        // create detectable image
        DetectableImage detectable = DetectableImage.fromFilePath(result.files.single.path!);

        // detect
        for (var detector in detectors) {
          detector.detect(detectable, false);
        }
      }

      // return the file
      return File(file, url, name, type, size);
    }
  }
  catch(e)
  {
    Log().debug('Error Launching File Picker');
  }
  return null;
}