小编Hed*_*win的帖子

我觉得linter规则discarded_future有问题

有没有办法使用discarded_future lint 规则，而不必每次使用FutureBuilder 时都忽略该规则。使用简单的 FutureBuilder 时触发规则是否正常？如果是，正确的方法是什么？

FutureBuilder<void>(
            
    future: retrieveLostData(),
    builder: (
      BuildContext context,
      AsyncSnapshot<void> snapshot,
    ) {
      switch (snapshot.connectionState) {
        case ConnectionState.none:
          return buildRowIconPhoto();
        case ConnectionState.waiting:
          return buildRowIconPhoto();
        case ConnectionState.done:
          return buildRowIconPhoto();
        default:
          return buildRowIconPhoto();
      }
    },
)

 Future<void> retrieveLostData() async {
    LostDataResponse response = await _imagePicker.retrieveLostData();
    if (response.isEmpty) {
      return;
    }
    if (response.file != null && widget.onPhotoTaken != null) {
      widget.onPhotoTaken!(
        File(response.file!.path),
        false,
      );
    }
  }