189 lines
5.1 KiB
Dart
189 lines
5.1 KiB
Dart
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import 'package:flutter/material.dart';
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import 'package:test_app/data/repository/potter_repository.dart';
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import 'package:test_app/domain/card.dart';
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import 'package:test_app/domain/home.dart';
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import 'package:test_app/utils/debounce.dart';
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import 'package:test_app/view/details_page/details_page.dart';
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import 'package:test_app/view/home_page/home_card.dart';
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class MyHomePage extends StatefulWidget {
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const MyHomePage({super.key, required this.title});
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final String title;
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@override
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State<MyHomePage> createState() => _MyHomePageState();
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}
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class _MyHomePageState extends State<MyHomePage> {
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final Color _color = Colors.orangeAccent;
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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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backgroundColor: _color,
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title: Text(widget.title),
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),
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body: const Body(),
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);
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}
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}
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class Body extends StatefulWidget {
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const Body({super.key});
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@override
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State<Body> createState() => _BodyState();
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}
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class _BodyState extends State<Body> {
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final searchController = TextEditingController();
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final scrollController = ScrollController();
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final repository = PotterRepository();
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int nextPage = 1;
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int currentPage = 0;
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List<CardData> data = [];
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bool isLoading = false;
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@override
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void initState() {
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_loadData();
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scrollController.addListener(_onNextPageListener);
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super.initState();
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}
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void _setLoading(bool state) {
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setState(() {
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isLoading = state;
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});
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}
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void _loadData() async {
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_setLoading(true);
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final result =
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await repository.loadData(q: searchController.text, page: nextPage);
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_setData(result);
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_setLoading(false);
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}
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void _setData(HomeData? result) {
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nextPage = result?.nextPage ?? 1;
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if (currentPage >= (result?.currentPage ?? 1)) {
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return;
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}
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currentPage = result?.currentPage ?? 1;
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setState(() {
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data.addAll(result?.data ?? []);
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});
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}
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@override
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void dispose() {
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searchController.dispose();
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scrollController.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return Column(
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children: [
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Padding(
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padding: const EdgeInsets.all(16),
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child: SearchBar(
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leading: const Icon(Icons.search),
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trailing: [
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IconButton(
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onPressed: () {
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searchController.clear();
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data.clear();
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currentPage = 0;
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nextPage = 1;
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_loadData();
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},
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icon: const Icon(Icons.clear)),
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],
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controller: searchController,
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onChanged: (search) {
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Debounce.run(() async {
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_setLoading(true);
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data.clear();
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currentPage = 0;
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nextPage = 1;
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final result = await repository.loadData(q: search);
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if (scrollController.hasClients) {
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scrollController.jumpTo(0);
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}
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_setData(result);
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_setLoading(false);
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});
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},
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),
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),
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Expanded(
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child: Stack(
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children: [
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Positioned.fill(
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child: ListView.builder(
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controller: scrollController,
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padding: const EdgeInsets.only(right: 16, left: 16),
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itemCount: data.length,
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itemBuilder: (context, index) {
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final item = data[index];
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return HomeCard.fromData(
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item,
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onLike: (String title, bool isLiked) =>
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_showSnackBar(context, title, isLiked),
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onTap: () => _navigateToDetails(context, item),
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);
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}),
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),
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Align(
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alignment:
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data.isEmpty ? Alignment.topCenter : Alignment.bottomCenter,
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child: Visibility(
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visible: isLoading,
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child: const Padding(
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padding: EdgeInsets.only(bottom: 32, top: 16),
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child: CircularProgressIndicator(),
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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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void _showSnackBar(BuildContext context, String title, bool isLiked) {
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WidgetsBinding.instance.addPostFrameCallback((_) {
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ScaffoldMessenger.of(context).showSnackBar(SnackBar(
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content: Text(
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'$title is ${isLiked ? 'liked' : 'disliked'}!',
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style: Theme.of(context).textTheme.bodyLarge,
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),
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backgroundColor: Colors.orangeAccent,
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duration: const Duration(seconds: 1),
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));
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});
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}
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void _navigateToDetails(BuildContext context, CardData data) {
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Navigator.push(
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context,
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MaterialPageRoute(builder: (context) => DetailsPage(data)),
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);
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}
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void _onNextPageListener() {
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Debounce.run(() {
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if (scrollController.offset >
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scrollController.position.maxScrollExtent - 10) {
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_loadData();
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}
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});
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}
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}
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