Solian/lib/screens/home.dart
2024-05-18 22:23:36 +08:00

76 lines
2.0 KiB
Dart

import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:solian/models/pagination.dart';
import 'package:solian/models/post.dart';
import 'package:solian/providers/content/post_explore.dart';
import 'package:solian/widgets/posts/post_item.dart';
class HomeScreen extends StatefulWidget {
const HomeScreen({super.key});
@override
State<HomeScreen> createState() => _HomeScreenState();
}
class _HomeScreenState extends State<HomeScreen> {
int _pageKey = 0;
int? _dataTotal;
bool _isFirstLoading = true;
final List<Post> _data = List.empty(growable: true);
getPosts() async {
if (_dataTotal != null && _pageKey * 10 > _dataTotal!) return;
final PostExploreProvider provider = Get.find();
final resp = await provider.listPost(_pageKey);
final PaginationResult result = PaginationResult.fromJson(resp.body);
setState(() {
final parsed = result.data?.map((e) => Post.fromJson(e));
if (parsed != null) _data.addAll(parsed);
_isFirstLoading = false;
_dataTotal = result.count;
_pageKey++;
});
}
@override
void initState() {
Get.lazyPut(() => PostExploreProvider());
super.initState();
Future.delayed(Duration.zero, () => getPosts());
}
@override
Widget build(BuildContext context) {
if (_isFirstLoading) {
return const Center(
child: CircularProgressIndicator(),
);
}
return RefreshIndicator(
onRefresh: () {
_data.clear();
_pageKey = 0;
_dataTotal = null;
return getPosts();
},
child: ListView.separated(
itemCount: _data.length,
itemBuilder: (BuildContext context, int index) {
final item = _data[index];
return GestureDetector(
child: PostItem(key: Key('p${item.alias}'), item: item),
onTap: () {},
);
},
separatorBuilder: (_, __) => const Divider(thickness: 0.3, height: 0.3),
),
);
}
}