如何从flutter中的列表中选择项目

import 'package:flutter/material.dart';

class Project {
  final String name;
  final String description;

  Project({required this.name, required this.description});
}

class ProjectListPage extends StatefulWidget {
  @override
  _ProjectListPageState createState() => _ProjectListPageState();
}

class _ProjectListPageState extends State<ProjectListPage> {
  List<Project> projects = [
    Project(name: 'Project 1', description: 'Description 1'),
    Project(name: 'Project 2', description: 'Description 2'),
    Project(name: 'Project 3', description: 'Description 3'),
  ];

  Project? selectedProject;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Project List'),
      ),
      body: ListView.builder(
        itemCount: projects.length,
        itemBuilder: (context, index) {
          return GestureDetector(
            onTap: () {
              setState(() {
                selectedProject = projects[index];
              });
            },
            child: ListTile(
              title: Text(projects[index].name),
              subtitle: Text(projects[index].description),
              selected: selectedProject == projects[index],
            ),
          );
        },
      ),
    );
  }
}