292 lines
10 KiB
Dart
292 lines
10 KiB
Dart
import 'package:environmental_protection/common/user_information.dart';
|
|
import 'package:flutter/material.dart';
|
|
import 'dart:convert';
|
|
|
|
class SocialPage extends StatefulWidget {
|
|
const SocialPage({super.key});
|
|
|
|
@override
|
|
State<SocialPage> createState() => _SocialPageState();
|
|
}
|
|
|
|
class _SocialPageState extends State<SocialPage> {
|
|
List<Map<String, dynamic>> posts = [];
|
|
|
|
@override
|
|
void initState() {
|
|
super.initState();
|
|
_fetchPosts();
|
|
}
|
|
|
|
Future<void> _fetchPosts() async {
|
|
var global = GlobalInformation.getInstance();
|
|
final response = await global.requester.get(resolve('api/post/list'));
|
|
|
|
if (response.statusCode == 200) {
|
|
final data = json.decode(response.body);
|
|
setState(() {
|
|
posts = List<Map<String, dynamic>>.from(data['rows']);
|
|
});
|
|
} else {
|
|
throw Exception('Failed to load posts');
|
|
}
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return Scaffold(
|
|
appBar: AppBar(
|
|
title: const Text("友邻社交"),
|
|
),
|
|
body: GridView.builder(
|
|
padding: const EdgeInsets.all(10.0),
|
|
gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
|
|
crossAxisCount: 2,
|
|
childAspectRatio: 0.75,
|
|
crossAxisSpacing: 10.0,
|
|
mainAxisSpacing: 10.0,
|
|
),
|
|
itemCount: posts.length,
|
|
itemBuilder: (context, index) {
|
|
final post = posts[index];
|
|
return GestureDetector(
|
|
onTap: () {
|
|
Navigator.push(
|
|
context,
|
|
MaterialPageRoute(
|
|
builder: (context) => PostDetailPage(postId: post['id']),
|
|
),
|
|
);
|
|
},
|
|
child: Card(
|
|
child: Column(
|
|
crossAxisAlignment: CrossAxisAlignment.start,
|
|
children: [
|
|
Image.network(
|
|
resolve(post['cover']).toString(),
|
|
fit: BoxFit.cover,
|
|
height: 150,
|
|
width: double.infinity,
|
|
),
|
|
Padding(
|
|
padding: const EdgeInsets.all(8.0),
|
|
child: Text(post['nickName'] ?? "未知用户", style: const TextStyle(fontSize: 16)),
|
|
),
|
|
Padding(
|
|
padding: const EdgeInsets.symmetric(horizontal: 8.0),
|
|
child: Row(
|
|
children: [
|
|
const Icon(Icons.favorite, color: Colors.red, size: 16),
|
|
const SizedBox(width: 5),
|
|
Text(post['likeNum'].toString()),
|
|
],
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
},
|
|
),
|
|
floatingActionButton: FloatingActionButton(
|
|
heroTag: 'uniqueTag',
|
|
onPressed: () {
|
|
// 添加发布帖子的功能
|
|
},
|
|
child: const Icon(Icons.add),
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class PostDetailPage extends StatefulWidget {
|
|
final int postId;
|
|
|
|
const PostDetailPage({super.key, required this.postId});
|
|
|
|
@override
|
|
State<PostDetailPage> createState() => _PostDetailPageState();
|
|
}
|
|
|
|
class _PostDetailPageState extends State<PostDetailPage> {
|
|
Map<String, dynamic>? post;
|
|
List<Map<String, dynamic>> comments = [];
|
|
int pageNum = 1;
|
|
final int pageSize = 10;
|
|
bool isLoading = false;
|
|
bool hasMore = true;
|
|
final TextEditingController _commentController = TextEditingController();
|
|
|
|
@override
|
|
void initState() {
|
|
super.initState();
|
|
_fetchPostDetail();
|
|
_fetchComments();
|
|
}
|
|
|
|
Future<void> _fetchPostDetail() async {
|
|
final url = resolve('api/post/${widget.postId}');
|
|
final response = await GlobalInformation.getInstance().requester.get(url);
|
|
|
|
if (response.statusCode == 200) {
|
|
setState(() {
|
|
post = Map<String, dynamic>.from(jsonDecode(response.body)['data']);
|
|
});
|
|
} else {
|
|
throw Exception('Failed to load post detail');
|
|
}
|
|
}
|
|
|
|
Future<void> _fetchComments() async {
|
|
if (isLoading || !hasMore) return;
|
|
|
|
setState(() {
|
|
isLoading = true;
|
|
});
|
|
|
|
var url = resolve('api/post/comment/list');
|
|
url = url.replace(queryParameters: {
|
|
'postId': widget.postId.toString(),
|
|
'pageNum': pageNum.toString(),
|
|
'pageSize': pageSize.toString(),
|
|
});
|
|
final response = await GlobalInformation.getInstance().requester.get(
|
|
url,
|
|
);
|
|
|
|
if (response.statusCode == 200) {
|
|
final data = jsonDecode(response.body);
|
|
setState(() {
|
|
comments.addAll(List<Map<String, dynamic>>.from(data['rows']));
|
|
hasMore = data['rows'].length == pageSize;
|
|
if (hasMore) {
|
|
pageNum++;
|
|
}
|
|
});
|
|
} else {
|
|
throw Exception('Failed to load comments');
|
|
}
|
|
|
|
setState(() {
|
|
isLoading = false;
|
|
});
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return Scaffold(
|
|
appBar: AppBar(
|
|
leading: IconButton(
|
|
onPressed: () {
|
|
Navigator.pop(context);
|
|
},
|
|
icon: const Icon(Icons.keyboard_arrow_left),
|
|
),
|
|
title: const Text("帖子详情"),
|
|
centerTitle: true,
|
|
),
|
|
body: post == null
|
|
? const Center(child: CircularProgressIndicator())
|
|
: ListView(
|
|
children: [
|
|
Container(
|
|
padding: const EdgeInsets.all(16.0),
|
|
child: Column(
|
|
crossAxisAlignment: CrossAxisAlignment.start,
|
|
children: [
|
|
Text(post!['nickName'] ?? "未知用户", style: const TextStyle(fontSize: 20, fontWeight: FontWeight.bold)),
|
|
const SizedBox(height: 10),
|
|
Text("发布时间: ${post!['createTime']}"),
|
|
const SizedBox(height: 20),
|
|
Text(post!['content'] ?? "无内容", style: const TextStyle(fontSize: 16)),
|
|
const SizedBox(height: 10),
|
|
Image.network(resolve(post!['cover']).toString()),
|
|
],
|
|
),
|
|
),
|
|
const Divider(),
|
|
Expanded(
|
|
child: NotificationListener<ScrollNotification>(
|
|
onNotification: (ScrollNotification scrollInfo) {
|
|
if (!isLoading &&
|
|
scrollInfo.metrics.pixels == scrollInfo.metrics.maxScrollExtent) {
|
|
_fetchComments();
|
|
}
|
|
return false;
|
|
},
|
|
child: SizedBox(
|
|
height: 600,
|
|
child: ListView.builder(
|
|
itemCount: comments.length + 1,
|
|
itemBuilder: (context, index) {
|
|
if (index == comments.length) {
|
|
return hasMore
|
|
? const Center(child: CircularProgressIndicator())
|
|
: const Padding(
|
|
padding: EdgeInsets.all(8.0),
|
|
child: Center(child: Text("没有更多评论了")),
|
|
);
|
|
}
|
|
final comment = comments[index];
|
|
return ListTile(
|
|
leading: comment['avatar'] != null && comment['avatar'] != '' ? CircleAvatar(
|
|
backgroundImage: NetworkImage(resolve(comment['avatar']).toString()),
|
|
) : const SizedBox(width: 40, height: 40, child: Placeholder()),
|
|
title: Text(comment['nickName'] ?? "未知用户"),
|
|
subtitle: Column(
|
|
crossAxisAlignment: CrossAxisAlignment.start,
|
|
children: [
|
|
Text(comment['content'] ?? ""),
|
|
const SizedBox(height: 5),
|
|
Row(
|
|
mainAxisAlignment: MainAxisAlignment.spaceBetween,
|
|
children: [
|
|
Text(comment['createTime'] ?? "未知", style: const TextStyle(fontSize: 12, color: Colors.grey)),
|
|
Row(
|
|
children: [
|
|
const Icon(Icons.favorite, color: Colors.red, size: 16),
|
|
const SizedBox(width: 4),
|
|
Text(comment['likeNum'].toString()),
|
|
],
|
|
),
|
|
],
|
|
),
|
|
],
|
|
),
|
|
);
|
|
},
|
|
),
|
|
)
|
|
),
|
|
),
|
|
const Divider(),
|
|
Padding(
|
|
padding: const EdgeInsets.all(8.0),
|
|
child: Row(
|
|
children: [
|
|
Expanded(
|
|
child: TextField(
|
|
decoration: const InputDecoration(
|
|
hintText: '发表评论...',
|
|
border: OutlineInputBorder(),
|
|
),
|
|
controller: _commentController,
|
|
),
|
|
),
|
|
const SizedBox(width: 10),
|
|
ElevatedButton(
|
|
onPressed: () {
|
|
var global = GlobalInformation.getInstance();
|
|
global.requester.post(resolve('api/post/comment'), body: jsonEncode({"postId": widget.postId.toString(), "content": _commentController.text, "likeNum": "0", "parentId": 0}));
|
|
_commentController.clear();
|
|
},
|
|
child: const Text("发布"),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
],
|
|
)
|
|
);
|
|
}
|
|
} |