如何在容器的子容器中显示文本或IconButton？

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('Container Example')),
        body: Center(
          child: Container(
            color: Colors.grey,
            padding: EdgeInsets.all(16.0),
            child: Row(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                Container(
                  color: Colors.blue,
                  padding: EdgeInsets.all(8.0),
                  child: Text(
                    'Hello World',
                    style: TextStyle(
                      fontSize: 20,
                      color: Colors.white,
                    ),
                  ),
                ),
                SizedBox(width: 10),
                Container(
                  color: Colors.red,
                  padding: EdgeInsets.all(8.0),
                  child: IconButton(
                    icon: Icon(Icons.favorite),
                    color: Colors.white,
                    onPressed: () {
                      // 执行按钮点击后的操作
                    },
                  ),
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}