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77 lines
2.3 KiB
77 lines
2.3 KiB
import 'package:flutter/material.dart';
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class CommentPage extends StatefulWidget {
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const CommentPage({Key? key}) : super(key: key);
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@override
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_CommentPageState createState() => _CommentPageState();
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}
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class _CommentPageState extends State<CommentPage> {
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final TextEditingController _controller = TextEditingController();
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final List<String> _comments = ["这是第一个评论", "很喜欢这首歌！"]; // 初始评论示例
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void _addComment() {
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if (_controller.text.isNotEmpty) {
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setState(() {
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_comments.insert(0, _controller.text); // 插入到顶部
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});
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_controller.clear(); // 清空输入框
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}
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: const Text('评论'),
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),
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body: Column(
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children: [
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// 评论列表区域
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Expanded(
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child: ListView.builder(
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reverse: true, // 新评论显示在顶部
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itemCount: _comments.length,
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itemBuilder: (context, index) {
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return ListTile(
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leading: const CircleAvatar(
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child: Icon(Icons.person),
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),
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title: Text(_comments[index]),
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subtitle: Text('${DateTime.now().difference(DateTime.now().subtract(Duration(minutes: index * 5))).inMinutes} 分钟前'),
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);
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},
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),
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),
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const Divider(),
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// 评论输入区域
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Padding(
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padding: const EdgeInsets.all(8.0),
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child: Row(
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children: [
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Expanded(
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child: TextField(
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controller: _controller,
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decoration: InputDecoration(
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hintText: '输入你的评论...',
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(10.0),
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),
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),
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onSubmitted: (_) => _addComment(), // 按回车提交评论
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),
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),
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IconButton(
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icon: const Icon(Icons.send, color: Colors.blue),
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onPressed: _addComment,
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),
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],
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),
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),
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],
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),
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);
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}
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}
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