day 2
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5db5a7ea42
commit
860fd5f62e
@ -1,4 +1,6 @@
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import 'package:environmental_protection/common/user_information.dart';
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import 'package:flutter/material.dart';
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import 'dart:convert';
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class SocialPage extends StatefulWidget {
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const SocialPage({super.key});
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@ -8,49 +10,34 @@ class SocialPage extends StatefulWidget {
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}
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class _SocialPageState extends State<SocialPage> {
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final List<Map<String, dynamic>> posts = [
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{
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"user": "邻居A",
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"likes": 360,
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},
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{
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"user": "邻居B",
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"likes": 280,
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},
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{
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"user": "邻居C",
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"likes": 420,
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},
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{
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"user": "邻居D",
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"likes": 150,
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},
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{
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"user": "邻居D",
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"likes": 150,
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},
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{
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"user": "邻居D",
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"likes": 150,
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},
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{
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"user": "邻居D",
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"likes": 150,
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},
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{
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"user": "邻居D",
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"likes": 150,
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},
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{
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"user": "邻居D",
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"likes": 150,
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},
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List<Map<String, dynamic>> posts = [];
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];
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@override
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void initState() {
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super.initState();
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_fetchPosts();
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}
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Future<void> _fetchPosts() async {
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var global = GlobalInformation.getInstance();
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final response = await global.requester.get(resolve('api/post/list'));
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if (response.statusCode == 200) {
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final data = json.decode(response.body);
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setState(() {
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posts = List<Map<String, dynamic>>.from(data['rows']);
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});
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} else {
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throw Exception('Failed to load posts');
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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("友邻社交"),
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),
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body: GridView.builder(
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padding: const EdgeInsets.all(10.0),
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gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
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@ -67,7 +54,7 @@ class _SocialPageState extends State<SocialPage> {
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (context) => PostDetailPage(post: post),
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builder: (context) => PostDetailPage(postId: post['id']),
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),
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);
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},
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@ -75,33 +62,26 @@ class _SocialPageState extends State<SocialPage> {
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Placeholder(
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fallbackHeight: 150,
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color: Colors.grey,
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Image.network(
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resolve(post['cover']).toString(),
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fit: BoxFit.cover,
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height: 150,
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width: double.infinity,
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),
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Padding(
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padding: const EdgeInsets.all(8.0),
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child: Text(post['nickName'] ?? "未知用户", style: const TextStyle(fontSize: 16)),
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),
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 8.0),
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child: Row(
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children: [
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const Icon(Icons.favorite, color: Colors.red, size: 16),
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const SizedBox(width: 5),
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Text(post['likeNum'].toString()),
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],
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),
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),
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Row(
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children: [
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Padding(
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padding: const EdgeInsets.all(8.0),
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child: Text(post['user'], style: const TextStyle(fontSize: 16)),
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),
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 8.0),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Row(
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children: [
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const Icon(Icons.favorite, color: Colors.grey, size: 10,),
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const SizedBox(width: 5),
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Text(post['likes'].toString()),
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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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),
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@ -109,117 +89,204 @@ class _SocialPageState extends State<SocialPage> {
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},
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),
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floatingActionButton: FloatingActionButton(
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onPressed: () {},
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heroTag: 'uniqueTag',
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onPressed: () {
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// 添加发布帖子的功能
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},
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child: const Icon(Icons.add),
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),
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);
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}
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}
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// 社交帖详情页面
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class PostDetailPage extends StatelessWidget {
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final Map<String, dynamic> post;
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class PostDetailPage extends StatefulWidget {
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final int postId;
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PostDetailPage({super.key, required this.post});
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const PostDetailPage({super.key, required this.postId});
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// 假数据，用户评论
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final List<Map<String, dynamic>> comments = [
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{
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"username": "用户1",
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"date": "2024-08-24",
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"content": "这是一个很有趣的帖子！",
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"likes": 120,
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},
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{
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"username": "用户2",
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"date": "2024-08-23",
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"content": "我很喜欢这个内容。",
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"likes": 89,
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},
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{
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"username": "用户3",
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"date": "2024-08-22",
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"content": "赞同楼上的看法。",
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"likes": 45,
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},
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];
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@override
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State<PostDetailPage> createState() => _PostDetailPageState();
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}
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class _PostDetailPageState extends State<PostDetailPage> {
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Map<String, dynamic>? post;
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List<Map<String, dynamic>> comments = [];
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int pageNum = 1;
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final int pageSize = 10;
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bool isLoading = false;
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bool hasMore = true;
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final TextEditingController _commentController = TextEditingController();
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@override
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void initState() {
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super.initState();
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_fetchPostDetail();
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_fetchComments();
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}
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Future<void> _fetchPostDetail() async {
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final url = resolve('api/post/${widget.postId}');
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final response = await GlobalInformation.getInstance().requester.get(url);
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if (response.statusCode == 200) {
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setState(() {
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post = Map<String, dynamic>.from(jsonDecode(response.body)['data']);
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});
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} else {
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throw Exception('Failed to load post detail');
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}
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}
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Future<void> _fetchComments() async {
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if (isLoading || !hasMore) return;
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setState(() {
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isLoading = true;
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});
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var url = resolve('api/post/comment/list');
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url = url.replace(queryParameters: {
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'postId': widget.postId.toString(),
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'pageNum': pageNum.toString(),
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'pageSize': pageSize.toString(),
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});
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final response = await GlobalInformation.getInstance().requester.get(
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url,
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);
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if (response.statusCode == 200) {
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final data = jsonDecode(response.body);
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setState(() {
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comments.addAll(List<Map<String, dynamic>>.from(data['rows']));
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hasMore = data['rows'].length == pageSize;
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if (hasMore) {
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pageNum++;
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}
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});
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} else {
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throw Exception('Failed to load comments');
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}
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setState(() {
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isLoading = false;
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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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body: Column(
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children: [
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Container(
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padding: const EdgeInsets.all(16.0),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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appBar: AppBar(
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leading: IconButton(
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onPressed: () {
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Navigator.pop(context);
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},
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icon: const Icon(Icons.keyboard_arrow_left),
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),
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title: const Text("帖子详情"),
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centerTitle: true,
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),
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body: post == null
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? const Center(child: CircularProgressIndicator())
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: ListView(
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children: [
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Text(post['user'], style: const TextStyle(fontSize: 20, fontWeight: FontWeight.bold)),
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const SizedBox(height: 10),
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const Text("发布时间: 2024-08-24"),
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const SizedBox(height: 20),
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const Text("这是社交帖的内容。这是一段假数据。", style: TextStyle(fontSize: 16)),
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],
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),
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),
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const Divider(),
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Expanded(
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child: ListView.builder(
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itemCount: comments.length,
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itemBuilder: (context, index) {
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final comment = comments[index];
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return ListTile(
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leading: const CircleAvatar(
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child: Placeholder(),
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),
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title: Text(comment['username']),
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subtitle: Column(
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Container(
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padding: const EdgeInsets.all(16.0),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(comment['content']),
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const SizedBox(height: 5),
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Text(comment['date'], style: const TextStyle(fontSize: 12, color: Colors.grey)),
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Row(
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children: [
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const Icon(Icons.favorite, color: Colors.red, size: 16),
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const SizedBox(width: 4),
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Text(comment['likes'].toString()),
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],
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Text(post!['nickName'] ?? "未知用户", style: const TextStyle(fontSize: 20, fontWeight: FontWeight.bold)),
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const SizedBox(height: 10),
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Text("发布时间: ${post!['createTime']}"),
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const SizedBox(height: 20),
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Text(post!['content'] ?? "无内容", style: const TextStyle(fontSize: 16)),
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const SizedBox(height: 10),
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Image.network(resolve(post!['cover']).toString()),
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],
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),
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),
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const Divider(),
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Expanded(
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child: NotificationListener<ScrollNotification>(
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onNotification: (ScrollNotification scrollInfo) {
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if (!isLoading &&
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scrollInfo.metrics.pixels == scrollInfo.metrics.maxScrollExtent) {
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_fetchComments();
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}
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return false;
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},
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child: SizedBox(
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height: 600,
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child: ListView.builder(
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itemCount: comments.length + 1,
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itemBuilder: (context, index) {
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if (index == comments.length) {
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return hasMore
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? const Center(child: CircularProgressIndicator())
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: const Padding(
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padding: EdgeInsets.all(8.0),
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child: Center(child: Text("没有更多评论了")),
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);
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}
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final comment = comments[index];
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return ListTile(
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leading: comment['avatar'] != null && comment['avatar'] != '' ? CircleAvatar(
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backgroundImage: NetworkImage(resolve(comment['avatar']).toString()),
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) : const SizedBox(width: 40, height: 40, child: Placeholder()),
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title: Text(comment['nickName'] ?? "未知用户"),
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subtitle: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(comment['content'] ?? ""),
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const SizedBox(height: 5),
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Text(comment['createTime'] ?? "未知", style: const TextStyle(fontSize: 12, color: Colors.grey)),
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Row(
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children: [
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const Icon(Icons.favorite, color: Colors.red, size: 16),
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const SizedBox(width: 4),
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Text(comment['likeNum'].toString()),
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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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)
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),
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),
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const Divider(),
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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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decoration: const InputDecoration(
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hintText: '发表评论...',
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border: OutlineInputBorder(),
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),
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],
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controller: _commentController,
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),
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),
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const SizedBox(width: 10),
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ElevatedButton(
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onPressed: () {
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var global = GlobalInformation.getInstance();
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global.requester.post(resolve('api/post/comment'), body: jsonEncode({"postId": widget.postId.toString(), "content": _commentController.text, "likeNum": "0", "parentId": 0}));
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_commentController.clear();
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},
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child: const Text("发布"),
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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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const Divider(),
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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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const Expanded(
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child: TextField(
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decoration: InputDecoration(
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hintText: '发表评论...',
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border: OutlineInputBorder(),
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),
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),
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),
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const SizedBox(width: 10),
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ElevatedButton(
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onPressed: () {},
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child: const Text("发布"),
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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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}
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