如何通过单击不同的按钮向ListView.builder添加不同的元素？

ListView.builder(
  itemCount: _list.length,
  itemBuilder: (context, index) {
    return ListTile(
      title: Text(_list[index]),
    );
  },
)

List<String> _list = [];

FlatButton(
  onPressed: () {
    _addToList('Button 1');
  },
  child: Text('Button 1'),
),
FlatButton(
  onPressed: () {
    _addToList('Button 2');
  },
  child: Text('Button 2'),
),
// Add more buttons as needed

void _addToList(String element) {
  setState(() {
    _list.add(element);
  });
}

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Dynamic ListView'),
        ),
        body: ListViewBuilderDemo(),
      ),
    );
  }
}

class ListViewBuilderDemo extends StatefulWidget {
  @override
  _ListViewBuilderDemoState createState() => _ListViewBuilderDemoState();
}

class _ListViewBuilderDemoState extends State<ListViewBuilderDemo> {
  List<String> _list = [];

  @override
  Widget build(BuildContext context) {
    return Column(
      children: <Widget>[
        FlatButton(
          onPressed: () {
            _addToList('Button 1');
          },
          child: Text('Button 1'),
        ),
        FlatButton(
          onPressed: () {
            _addToList('Button 2');
          },
          child: Text('Button 2'),
        ),
        // Add more buttons as needed

        ListView.builder(
          shrinkWrap: true,
          itemCount: _list.length,
          itemBuilder: (context, index) {
            return ListTile(
              title: Text(_list[index]),
            );
          },
        ),
      ],
    );
  }

  void _addToList(String element) {
    setState(() {
      _list.add(element);
    });
  }
}