如何在状态更改后强制widget重新创建自身？

import 'package:flutter/material.dart';

class MyWidget extends StatefulWidget {
  @override
  _MyWidgetState createState() => _MyWidgetState();
}

class _MyWidgetState extends State<MyWidget> {
  bool _isWidgetVisible = true;

  void _changeWidgetVisibility() {
    setState(() {
      _isWidgetVisible = !_isWidgetVisible;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Widget Rebuild Example'),
      ),
      body: Column(
        children: [
          if (_isWidgetVisible) Text('This is the widget.'),
          ElevatedButton(
            onPressed: _changeWidgetVisibility,
            child: Text(_isWidgetVisible ? 'Hide Widget' : 'Show Widget'),
          ),
        ],
      ),
    );
  }
}