Visa/lib/utils/dio_util.dart

import 'dart:convert';

import 'package:dio/dio.dart';
import 'package:hengyi/data/base_model_entity.dart';

class NetworkUtil {
  Future<List<String>> networkrequest() async {
    var response = await Dio().get("https://www.wanandroid.com/banner/json");
    var data = json.decode(response.toString());
    return BaseModelEntity<List<String>>.fromJson(data).data;
  }
}