Flutter Like Button逻辑语句

import 'package:flutter/material.dart';

class LikeButton extends StatefulWidget {
  @override
  _LikeButtonState createState() => _LikeButtonState();
}

class _LikeButtonState extends State<LikeButton> {
  bool _isLiked = false;
  int _likeCount = 0;

  void _toggleLike() {
    setState(() {
      _isLiked = !_isLiked;
      if (_isLiked) {
        _likeCount++;
      } else {
        _likeCount--;
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onTap: _toggleLike,
      child: Row(
        children: [
          Icon(
            _isLiked ? Icons.favorite : Icons.favorite_border,
            color: _isLiked ? Colors.red : Colors.grey,
          ),
          SizedBox(width: 5),
          Text('$_likeCount'),
        ],
      ),
    );
  }
}