如何在Flutter中异步设置首页？

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  Future<String> fetchHomePageData() async {
    // 异步获取首页数据的逻辑
    await Future.delayed(Duration(seconds: 2)); // 模拟异步操作
    return '首页数据';
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('异步设置首页'),
        ),
        body: FutureBuilder<String>(
          future: fetchHomePageData(),
          builder: (BuildContext context, AsyncSnapshot<String> snapshot) {
            if (snapshot.connectionState == ConnectionState.waiting) {
              // 数据正在加载中
              return Center(
                child: CircularProgressIndicator(),
              );
            } else if (snapshot.hasError) {
              // 数据加载发生错误
              return Center(
                child: Text('加载数据发生错误'),
              );
            } else {
              // 数据加载完成，显示主页内容
              return Center(
                child: Text(snapshot.data),
              );
            }
          },
        ),
      ),
    );
  }
}