flutter鸿蒙化,如何再flutter页面点击保存图片然后调用原生的权限把图片保存到相册

dependency_overrides:
	 image_gallery_saver:
    git:
      url: "https://gitcode.com/openharmony-sig/flutter_image_gallery_saver.git"

ImageGallerySaver.saveImage(base64Decode(codeData), quality: 100);