How to read a provider in a function without Ref or WidgetRef

[cgztzero]

Hi everyone
I want to use provider in a MethodChannel callback like this：

AppChannel.xxxMethod.setMethodCallHandler(
      (call) async {
        switch (call.method) {
          case 'xxx':
            _themeConfig = _parseThemConfig(call.arguments);
            //todo
            I want to update theme config here
            break;
          case 'xxx':
            _locale = _parseLanguage(call.arguments);
             //todo
            I want to update language config here
            break;
        }
      },
);

But there is no WidgetRef or Ref，so How can I read Provider here？
Should I create a global static Ref from root Consumer like this:

return Consumer(
     builder: (BuildContext context, WidgetRef ref, Widget? child) {
       //todo get ref
       GlobalRefUtil.globalRef = ref;
       final globalConfig = ref.watch(globalConfigProvider);
       return MyWidget();
     },
   );

Thanks

[YukiAttano]

You should probably create a Notifier which itself has the functions that call your method channel or is able to listen to method channels.
It then updates its own state.