不能将参数类型“地图动态动态”分配给参数类型“地图字符串动态”

Question

我在我的ApiRepository类上使用dio 。 但是这一行显示错误

 _dio.get(this.url, queryParameters: this.payload).then((response) {...

不能将参数类型“地图动态动态”分配给参数类型“地图字符串动态”

全班

class ApiRepository {

  final String url;
  
  final Map payload;

  ApiRepository(this.url, this.payload);

  final Dio _dio = Dio();

  void get({

    required Function() beforeSend,

    required Function(dynamic data) onSuccess,

    required Function(dynamic error) onError,

  }) {
   
 _dio.get(this.url, queryParameters: this.payload).then((response) {
     
 if (onSuccess != null) {

        onSuccess(response.data);

      }

    }).catchError((error) {

      if (onError != null) {

        onError(error);

      }
    });
  }
}

Answer 1

queryParameters需要Map<String, dynamic>但默认Map是Map<dynamic, dynamic> 。

将payload映射更改为
final Map<String, dynamic> payload;