Surface/lib/screens/explore.dart
2024-11-09 11:16:14 +08:00

66 lines
1.8 KiB
Dart

import 'package:easy_localization/easy_localization.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:surface/providers/sn_network.dart';
import 'package:surface/types/post.dart';
import 'package:surface/widgets/navigation/app_scaffold.dart';
import 'package:surface/widgets/post/post_item.dart';
import 'package:very_good_infinite_list/very_good_infinite_list.dart';
class ExploreScreen extends StatefulWidget {
const ExploreScreen({super.key});
@override
State<ExploreScreen> createState() => _ExploreScreenState();
}
class _ExploreScreenState extends State<ExploreScreen> {
bool _isBusy = true;
final List<SnPost> _posts = List.empty(growable: true);
int? _postCount;
void _fetchPosts() async {
if (_postCount != null && _posts.length >= _postCount!) return;
setState(() => _isBusy = true);
final sn = context.read<SnNetworkProvider>();
final resp = await sn.client.get('/cgi/co/posts', queryParameters: {
'take': 10,
'offset': _posts.length,
});
_postCount = resp.data['count'];
_posts.addAll(
resp.data['data']?.map((e) => SnPost.fromJson(e)).cast<SnPost>() ?? []);
if (mounted) setState(() => _isBusy = false);
}
@override
void initState() {
super.initState();
_fetchPosts();
}
@override
Widget build(BuildContext context) {
return AppScaffold(
appBar: AppBar(
title: Text('screenExplore').tr(),
),
body: InfiniteList(
itemCount: _posts.length,
isLoading: _isBusy,
hasReachedMax: _postCount != null && _posts.length >= _postCount!,
onFetchData: _fetchPosts,
itemBuilder: (context, idx) {
return PostItem(data: _posts[idx]);
},
separatorBuilder: (context, index) => const Divider(),
),
);
}
}