我想通过使用Flutter Dio包中的inceptors来刷新toki。
我使用onError方法使它再次请求，但即使我使用handler.reject（e），它也会进入无限循环。

class DioFetch {
  Dio dio = Dio();

  DioFetch() {
    demoInceptor();
  }

  demoInceptor() async {
    dio.interceptors.clear();
    dio.interceptors.add(
      InterceptorsWrapper(
        onRequest: (options, handler) {
          print("onRequest");
          return handler.next(options);
        },
        onError: (DioError e, handler) async {
          if (e.response != null) {
            if (e.response?.statusCode == 401) {
              print("statuscode: 401");
              final refresh = await refreshToken();
              if (refresh.statusCode == 200) {
                RequestOptions options = e.requestOptions;
                try {
                  var resp = await dio.request(e.requestOptions.path,
                      data: options.data,
                      cancelToken: options.cancelToken,
                      onReceiveProgress: options.onReceiveProgress,
                      onSendProgress: options.onSendProgress,
                      queryParameters: options.queryParameters);
                  return handler.resolve(resp);
                } on DioError catch (error) {
                  return handler.reject(error);
                }
              } else {
                return handler.reject(e);
              }
            }
          } else {
            return handler.next(e);
          }
        },
      ),
    );
  }

  Future<Response> refreshToken() async {
    //refresh token code. response dio
  }
}