flutter provide

首先是写一个model

import 'package:flutter/widgets.dart';
import 'package:social_im/models/activity/FlipCardsSettingBean.dart';
import 'package:social_im/models/activity/slideSettingBean.dart';

import '../pages/shakeGame/data/GetUserSetting.dart';

class SlideMatchModel with ChangeNotifier {
    
  SlideSettingBean? _slideSettingBean;

  get slideSettingBean => _slideSettingBean;

  setSlideSettingBean(SlideSettingBean slideSettingBean) {
    
    _slideSettingBean = slideSettingBean;
    notifyListeners();
    return _slideSettingBean;
  }

  FlipCardsSettingBean? _flipCardsSettingBean;

  get flipCardsSettingBean => _flipCardsSettingBean;

  setFlipCardsSettingBean(FlipCardsSettingBean flipCardsSettingBean) {
    
    _flipCardsSettingBean = flipCardsSettingBean;
    notifyListeners();
    return _flipCardsSettingBean;
  }

  GetUserSetting? _getUserSetting;

  get getUserSetting => _getUserSetting;

  setGetUserSetting(GetUserSetting getUserSetting) {
    
    _getUserSetting = getUserSetting;
    notifyListeners();
    return _getUserSetting;
  }

  clear() {
    
    _slideSettingBean = null;
    _flipCardsSettingBean = null;
    _getUserSetting = null;
    notifyListeners();
  }
}

然后设置数据

  //获取摇一摇活动次数
  void getShakeTime() {
    
    EasyLoading.show();
    HttpRequest.intance.postHttpFromBusiness(Api.API_SHAKE_SETTING, (data) {
    
      setState(() {
    
        //网络没问题
        _connectError=false;
      });
      if (EasyLoading.isShow) {
    
        EasyLoading.dismiss();
      }
      GetUserSetting getUserSetting = GetUserSetting.fromJson(data);
      Provider.of<SlideMatchModel>(Global.appContext, listen: false)
          .setGetUserSetting(getUserSetting);
      //获取摇一摇次数
      if (mounted) {
    
        setState(() {
    
          _shakeTime = getUserSetting.remainTimes!.remainShakeTimes;
        });
      }
    }, (error) {
    
    });
  }

最后在任何地方使用

GetUserSetting? getUserSetting;
getUserSetting =
        Provider.of<SlideMatchModel>(context, listen: true).getUserSetting;