在flutter中的图标上写入文本

import 'package:flutter/material.dart';

Stack(
  children: <Widget>[
    Icon(Icons.favorite, size: 48.0), // 替换为你想要的图标
    Positioned(
      top: 0,
      right: 0,
      child: Container(
        padding: EdgeInsets.all(4.0),
        decoration: BoxDecoration(
          color: Colors.red,
          borderRadius: BorderRadius.circular(8.0),
        ),
        child: Text(
          '文本',
          style: TextStyle(
            color: Colors.white,
            fontSize: 12.0,
            fontWeight: FontWeight.bold,
          ),
        ),
      ),
    ),
  ],
)