Flutter + Provider:如何将滑块的值传递回provider？

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

class SliderProvider with ChangeNotifier {
  double _sliderValue = 0.0;

  double get sliderValue => _sliderValue;

  void updateSliderValue(double newValue) {
    _sliderValue = newValue;
    notifyListeners();
  }
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return ChangeNotifierProvider(
      create: (context) => SliderProvider(),
      child: MaterialApp(
        home: Scaffold(
          appBar: AppBar(
            title: Text('Flutter Provider Example'),
          ),
          body: Column(
            children: [
              Consumer<SliderProvider>(
                builder: (context, provider, child) {
                  return Slider(
                    value: provider.sliderValue,
                    onChanged: (newValue) {
                      provider.updateSliderValue(newValue);
                    },
                  );
                },
              ),
              Consumer<SliderProvider>(
                builder: (context, provider, child) {
                  return Text('Slider Value: ${provider.sliderValue}');
                },
              ),
            ],
          ),
        ),
      ),
    );
  }
}

void main() {
  runApp(MyApp());
}