liangchengyou / wow_english

  import 'dart:io';
  
  import 'package:dio/dio.dart';

  import 'package:flutter/foundation.dart';
  import 'package:flutter_easyloading/flutter_easyloading.dart';

  import 'package:wow_english/models/response_model.dart';

  import 'package:wow_english/network/basic_configuration.dart';

  enum HttpMethod {
    get,
    put,
    post,
    head,
    patch,
    delete,
  }
  
  class DioUtil {
    static final Dio _dio = getDefDio();
  
    static Dio getDefDio() {
      Dio dio = Dio();
      dio.options = getDefOptions();
      return dio;
    }
  
    static BaseOptions getDefOptions() {
      final BaseOptions options = BaseOptions();

      options.baseUrl = BasicConfigurationManager().baseUrl??'';

      options.connectTimeout = const Duration(milliseconds: 1000);
      options.receiveTimeout = const Duration(milliseconds: 1000);

      options.headers['content-type'] = 'application/x-www-form-urlencoded';

      return options;
    }
  
    Future<void> requestData<T>(
        String path, {
          data,

          // HttpMethod method = HttpMethod.post,

          Map<String, dynamic>? queryParameters,
          ProgressCallback? onSendProgress,
          ProgressCallback? onReceiveProgress,
          required Function successCallBack,
          required Function errorCallBack,

          required HttpMethod method,

        }) async{
      try {

        Map<String, dynamic> headers = <String, dynamic>{};
  
        if (method == HttpMethod.post) {

          headers['content-type'] = 'application/json';

        }

        Response<dynamic> response;
        response = await _dio.request(
            path,
            data: data??{},
            queryParameters: queryParameters,

            options: Options(method: method.name,headers: headers),

            onSendProgress: onSendProgress,
            onReceiveProgress: onReceiveProgress);

        if (response.statusCode == HttpStatus.ok || response.statusCode == HttpStatus.created) {
          if (kDebugMode) {
            print(response.data);
          }
          final ResponseModel model = ResponseModel.fromJson(response.data);
          if (model.code != 200) {
            errorCallBack(model.msg);
          } else {
            successCallBack(response.data);
          }

        } else {
          errorCallBack('请求失败');
        }

      } on DioError catch(error) {
        EasyLoading.dismiss();
        if (kDebugMode) {
          print(error);
        }

        rethrow;
      }
    }
  }