从flutter ListView中删除源列表中的项目

import 'package:flutter/material.dart';

class MyListView extends StatefulWidget {
  @override
  _MyListViewState createState() => _MyListViewState();
}

class _MyListViewState extends State<MyListView> {
  List<String> items = ['项目1', '项目2', '项目3', '项目4'];

  @override
  Widget build(BuildContext context) {
    return ListView.builder(
      itemCount: items.length,
      itemBuilder: (context, index) {
        return ListTile(
          title: Text(items[index]),
          trailing: IconButton(
            icon: Icon(Icons.delete),
            onPressed: () {
              setState(() {
                items.removeAt(index);
              });
            },
          ),
        );
      },
    );
  }
}

void main() {
  runApp(MaterialApp(
    home: Scaffold(
      appBar: AppBar(
        title: Text('删除ListView中的项目'),
      ),
      body: MyListView(),
    ),
  ));
}