Flutter 图像\u选取器未将所选图像保存到缓存文件夹？

我正在使用image_picker 0.7.4拍摄图像，并注意到该文件正在保存到我的应用程序文档目录中，而不是缓存中。这正常吗

getImage() async {
    ImageSource imageSource;

    final action = await Dialogs.yesAbortDialog(context, 'Add Photo',
        'Where would you like to import a photo from?', 'Camera', 'Gallery');
    if (action == DialogAction.yes) {
      imageSource = ImageSource.camera;
    } else if (action == DialogAction.no) {
      imageSource = ImageSource.gallery;
    }
    //TODO may need to play with quality settings
    PickedFile selectedFile = await ImagePicker().getImage(
        source: imageSource, imageQuality: 25, maxWidth: 800, maxHeight: 800);

    if (selectedFile != null) {
      setState(() {
        imgs.add(selectedFile.path);
        print(selectedFile.path);
      });
    }
  }

输出

/storage/emulated/0/Android/data/com.ams.mobile_inspections/files/Pictures/scaled_968952ec-d095-4b28-852e-DF5A373F23AE88050656.jpg