flutter-sport/lib/config_inject.dart

import 'dart:io';

import 'package:dartin/dartin.dart';
import 'package:dio/dio.dart';
import 'package:dio_http_cache/dio_http_cache.dart';
import 'package:flutter/material.dart';
import 'package:package_info/package_info.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:sport/config.dart';
import 'package:sport/provider/game_info_model.dart';
import 'package:sport/provider/login_info_model.dart';
import 'package:sport/router/navigator_util.dart';
import 'package:sport/services/api/login_api.dart';
import 'package:sport/services/api/resp.dart';
import 'package:sport/services/api/rest_client.dart';
import 'package:sport/utils/toast.dart';

mixin ConfigInject<T extends StatefulWidget> on State<T> {
  int _os;
  String _version;

  void initState() {
    super.initState();
    final config = Config.config;
    startDartIn([
      Module([
        single<DioCacheManager>(({params}) {
          return DioCacheManager(CacheConfig(baseUrl: config.baseUrl));
        }),
        single<Dio>(({params}) {
          BaseOptions options = new BaseOptions(
            baseUrl: config.baseUrl,
            connectTimeout: 10000,
            receiveTimeout: 10000,
          );
          // 两点就是直接返回自身对象 类似链式调用
          return Dio(options)
            ..interceptors.add(inject<DioCacheManager>().interceptor)
            ..interceptors.add(InterceptorsWrapper(onRequest: (RequestOptions options) async {
//              if(!options.headers.containsKey("Content-Type"))
//                options.headers["Content-Type"] = "application/json";

              if (_version == null) {
                _version = (await PackageInfo.fromPlatform()).version;
              }
              if (_os == null) {
                _os = Platform.isAndroid ? 1 : Platform.isIOS ? 2 : 3;
              }

              SharedPreferences prefs = await SharedPreferences.getInstance();
              String token = prefs.getString("token");
              return options.merge(headers: {"token": token}, queryParameters: options.queryParameters..addAll({"ver": "$_version", "os": "$_os"}));
            }, onResponse: (Response response) async {
              if(response.request?.path?.contains("checkUpdate") == true){
                return response;
              }
              if (response.data is Map<String, dynamic>) {
                Map<String, dynamic> resp = response.data;
                if (resp['code'] == -5) {
                  ToastUtil.show("${resp['msg']}");
                  NavigatorUtil.goLogin(context);
                } else if (resp['code'] != 0) {
                  String msg = resp['msg'];
                  if (msg != null) ToastUtil.show("${resp['msg']}");
                }
              }
              return response;
            }))
            ..interceptors.add(LogInterceptor(responseBody: true, responseHeader: false, requestBody: true));
        }),
        // 注入实例
        single<RestClient>(({params}) {
          final dio = inject<Dio>();
          return RestClient(dio);
        }),
        single<LoginApi>(({params}) {
          final dio = inject<Dio>();
          return LoginApi(dio);
        }),
//        single<GameApi>(({params}) {
//          final dio = inject<Dio>();
//          return GameApi(dio);
//        }),
      ]),
      Module([
        factory<LoginInfoModel>(({params}) => LoginInfoModel()),
        factory<GameInfoModel>(({params}) => GameInfoModel()),
      ])
    ]);
  }
}