等待 api 中的空响应

Question

这个 print('响应>>>>>>');打印（响应）；一片空白 print("api") - 这个返回就OK了

在 Api.dart 中

未来列表（参数）异步 {Dio dio = new Dio(); 尝试 { var arg = 参数； 字符串 refreshToken = 令牌； dio.options.baseUrl = serverUrl + "/test/" + arg.toString(); dio.options.responseType = ResponseType.json;

    Response response = await dio.get(
        "${dio.options.baseUrl}",
        options: Options(
            headers: {
              'Authorization': "Bearer $refreshToken",
              'Content-Type': "application/json;charset=UTF-8",
              'Accept': "gzip"
            }
        )
    );
      print ("api");
      print(response.data);
    return await response.data;
  } catch (e) {
    print(e);
  }

myclass.dart

cl

ass 页面扩展 StatefulWidget { @覆盖 PageState createState() => PageState(); }

class PageState extends State<Page> {
  List data;
    Future<List> list() async {
      Network network = new Network();
      final String arguments = ModalRoute.of(context).settings.arguments as String;
      print(arguments);
      var response = await network.list(arguments.toString());
      print('response>>>>>>');
      print(response);
      if (mounted){
        this.setState(() {
          data = response;
        });
      };
//      _saving = false;
//    print('data');
//    print(data);

//    return "Success!";
  }
  @override
  void initState(){
    super.initState();
//    Future.delayed(Duration.zero, this.dados_propostas);
//    dados_propostas();
  }
  @override
  Widget build(BuildContext context) {
    this.list();
    return AlertDialog(
      title: const Text('Teste'),
      actions: <Widget>[
        FlatButton(
          onPressed: debugDumpApp,
          child: Row(
            children: <Widget>[
              const Icon(
                Icons.dvr,
                size: 18.0,
              ),
              Container(
                width: 8.0,
              ),
              const Text('DUMP'),
            ],
          ),
        ),
        FlatButton(
          onPressed: () {
            Navigator.pop(context, false);
          },
          child: const Text('OK'),
        ),
      ],
    );
  }

}

Answer 1

使用此功能：

Future<Response> get(String url, String token) async {
    Response response = Response();
    try {
      dio.options.contentType = "application/json;charset=UTF-8";

      dio.options.headers["Authorization"] = "Bearer $token";

      response = await dio.get(url);

      return response;
    } on DioError catch (error, stacktrace) {
      print("Exception occured: $error stackTrace: $stacktrace");
      return error.response;
    }
  }