小编ana*_*ani的帖子

升级 Flutter 后，我按照迁移代码的所有步骤进行操作，现在出现此错误，无法使用 .Copy。

class ImageInput extends StatefulWidget {
  final Function onSelectImage;

  ImageInput(this.onSelectImage);

  @override
  _ImageInputState createState() => _ImageInputState();
}

class _ImageInputState extends State<ImageInput> {
  File _storedImage;
  final picker = ImagePicker();

  Future getImage() async {
    final pickedFile =
        await picker.getImage(source: ImageSource.camera, maxWidth: 600);
    setState(() {
      if (pickedFile != null) {
        _storedImage = File(pickedFile.path);
      } else {
        print('No image selected.');
      }
    });
    final appDir = await syspaths.getApplicationDocumentsDirectory();
    final fileName = path.basename(pickedFile.path);
    final savedImage = await pickedFile.copy('${appDir.path}/$fileName');
    widget.onSelectImage(savedImage);
  }

我的地图也出现问题，当我在没有 imageInput 类 onPressed …