如何在ios flutter应用程序中将webp图像转换并保存到相册

Question

我想将网络上的webp图像保存到iphones图片库。我尝试了软件包gallery_saver和image_gallery_saver。两者都不输出错误消息，所以我不知道为什么它不起作用。我试图用FlutterImageCompress转换图像。我也尝试了jpeg和png。

  Directory tempDir = await getTemporaryDirectory();
  String srcPath = tempDir.path + '/src.webp';
  String destPath = tempDir.path + '/dest.jpg';

  await Dio().download(url, srcPath);
  await FlutterImageCompress.compressAndGetFile(srcPath, destPath,
      quality: 95, autoCorrectionAngle: true, format: CompressFormat.jpeg);

  result = await ImageGallerySaver.saveFile(destPath);