在flutter中切换like按钮

import 'package:flutter/material.dart';

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

class _LikeButtonState extends State<LikeButton> {
  bool isLiked = false;

  void onLikeButtonTapped() {
    setState(() {
      isLiked = !isLiked;
    });
  }

  @override
  Widget build(BuildContext context) {
    return IconButton(
      icon: Icon(
        isLiked ? Icons.favorite : Icons.favorite_border,
        color: isLiked ? Colors.red : null,
      ),
      onPressed: onLikeButtonTapped,
    );
  }
}

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('Flutter Like Button'),
        ),
        body: Center(
          child: LikeButton(),
        ),
      ),
    );
  }
}