Flutter-微信授权获取用户信息

微信授权获取用户信息依赖两个库
fluwx: ^1.1.3
dio: ^3.0.7 # 网络

废话不多，直接上代码

import 'dart:convert';
import 'package:dio/dio.dart';
import 'package:fluwx/fluwx.dart' as fluwx;
import 'package:yxk_app/constant/constant.dart';
import 'package:yxk_app/event/wx_auth_login_event.dart';
import 'package:yxk_app/utils/data_utils.dart';
import 'package:yxk_app/utils/eventbus_util.dart';
import 'package:yxk_app/utils/toast_utils.dart';

/// 微信授权
class WxAuth {
  /// 微信获取用户信息授权
  static authLogin() {
    fluwx.isWeChatInstalled().then((installed) {
      if (installed) {
        fluwx
            .sendWeChatAuth(
                scope: "snsapi_userinfo", state: "wechat_sdk_demo_test")
            .then((data) {})
            .catchError((e) {});
      } else {
        ToastUtils.showToast("请先安装微信");
      }
    });
  }

  /// 获取用户信息
  static getAccessToken(String code) {
    Dio dio = new Dio();
    dio.get("https://api.weixin.qq.com/sns/oauth2/access_token",
        queryParameters: {
          "appid": Constant.APP_ID,
          "secret": Constant.APP_SECRET,
          "code": code,
          "grant_type": "authorization_code"
        }).then((response) {
      Map map = json.decode(response.data);

      String token = map["access_token"];
      String openid = map["openid"];

      if (!StringUtils.isEmpty(token) && !StringUtils.isEmpty(openid)) {
        getUserInfo(token, openid);
      }
    });
  }

  /// 获取用户详细信息
  static getUserInfo(String token, String openid) {
    Dio dio = new Dio();
    dio.get("https://api.weixin.qq.com/sns/userinfo", queryParameters: {
      "access_token": token,
      "openid": openid
    }).then((response) {
      Map map = json.decode(response.data);

      String nickname = map["nickname"];
      String openid = map["openid"];

      if (!StringUtils.isEmpty(nickname) && !StringUtils.isEmpty(openid)) {
        EventBusUtil.getInstance()
            .fire(WxAuthLoginEvent().setNickName(nickname).setOpenId(openid));
      }
    });
  }
}

流程很简单
1.main.dart中注册微信相关项
2.该工具类流程，微信获取用户信息授权-获取用户信息-获取用户详细信息
3.通知在相关界面接收详细的微信个人信息。