我正在从这个参考Flutter Image Gallery构建一个 Flutter Gallery 应用程序
一切正常，但我在里面遇到错误Future Builder
这是我收到的错误警告
The name 'Uint8List' isn't a type so it can't be used as a type argument.
Try correcting the name to an existing type, or defining a type named 'Uint8List'.
这是我得到的运行时错误
Error: 'Uint8List' isn't a type.
return FutureBuilder<Uint8List>(
^^^^^^^^^
这Uint8List对我来说是全新的概念，不知道该怎么做。
这是返回 Future Builder 的小部件
@override
Widget build(BuildContext context) {
// We're using a FutureBuilder since thumbData is a future
return FutureBuilder<Uint8List>(
future: asset.thumbData,
builder: (_, snapshot) {
final bytes = snapshot.data;
// If we have no data, display a spinner
if (bytes == null) return CircularProgressIndicator();
// If there's data, display it as an image
return InkWell(
onTap: () {
// TODO: navigate to Image/Video screen
},
child: Stack(
children: [
// Wrap the image in a Positioned.fill to fill the space
Positioned.fill(
child: Image.memory(bytes, fit: BoxFit.cover),
),
// Display a Play icon if the asset is a video
if (asset.type == AssetType.video)
Center(
child: Container(
color: Colors.blue,
child: Icon(
Icons.play_arrow,
color: Colors.white,
),
),
),
],
),
);
},
);
}
我在谷歌上搜索过，但没有得到任何满意的答案。提前致谢。