Future<File> getImageFileFromAssets(String path) async {

    final bytes = (await rootBundle.load(path));

    final assetFile = File('${(await getTemporaryDirectory()).path}/$path');

    await assetFile.create(recursive: true);

    await assetFile.writeAsBytes(

        bytes.buffer.asUint8List(bytes.offsetInBytes, bytes.lengthInBytes));

    return assetFile;

  }

  File f = await getImageFileFromAssets("images/image.png")