olshab
a676d454ca
changed Cupertino search bar to Material UI 3 changed baseline color and card colors implemented fetching crypto data from public API (untested)
204 lines
7.1 KiB
Dart
204 lines
7.1 KiB
Dart
import 'package:flutter/cupertino.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_android_app/components/extensions/context_x.dart';
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import 'package:flutter_android_app/components/locale/l10n/app_localizations.dart';
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import 'package:flutter_android_app/components/utils/debounce.dart';
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import 'package:flutter_android_app/domain/models/card.dart';
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import 'package:flutter_android_app/presentation/details_page/details_page.dart';
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import 'package:flutter_android_app/presentation/home_page/bloc/bloc.dart';
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import 'package:flutter_android_app/presentation/home_page/bloc/events.dart';
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import 'package:flutter_android_app/presentation/home_page/bloc/state.dart';
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import 'package:flutter_android_app/presentation/like_bloc/like_bloc.dart';
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import 'package:flutter_android_app/presentation/like_bloc/like_state.dart';
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import 'package:flutter_bloc/flutter_bloc.dart';
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import '../common/svg_objects.dart';
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import '../like_bloc/like_events.dart';
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import '../locale_bloc/locale_bloc.dart';
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import '../locale_bloc/locale_events.dart';
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import '../locale_bloc/locale_state.dart';
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import '../settings_page/settings_page.dart';
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part 'card.dart';
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class MyHomePage extends StatelessWidget {
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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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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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backgroundColor: Theme.of(context).colorScheme.inversePrimary,
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title: Text(title),
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actions: [
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Padding(
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padding: const EdgeInsets.only(right: 12.0),
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child: IconButton(
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icon: const Icon(Icons.settings),
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onPressed: () => Navigator.push(context, MaterialPageRoute<void>(
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builder: (BuildContext context) => const SettingsPage(),
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)),
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),
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),
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],
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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 TextEditingController searchController = TextEditingController();
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final ScrollController scrollController = ScrollController();
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@override
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void initState() {
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SvgObjects.init();
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WidgetsBinding.instance.addPostFrameCallback((_) {
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context.read<HomeBloc>().add(const HomeLoadDataEvent());
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context.read<LikeBloc>().add(const LoadLikesEvent());
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});
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scrollController.addListener(_onNextPageListener);
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super.initState();
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}
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@override
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Widget build(BuildContext context) {
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return Padding(
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padding: EdgeInsets.only(top: MediaQuery.of(context).padding.top),
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child: Column(
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children: [
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Row(
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children: [
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Expanded(
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flex: 4,
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child: Padding(
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padding: const EdgeInsets.all(12),
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child: SearchBar(
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controller: searchController,
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onChanged: (search) {
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Debounce.run(() => context.read<HomeBloc>().add(HomeLoadDataEvent(search: search)));
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},
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leading: const Icon(Icons.search),
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trailing: [
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IconButton(
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icon: const Icon(Icons.close),
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onPressed: () { searchController.clear(); },
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),
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],
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hintText: context.locale.search,
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elevation: const WidgetStatePropertyAll(0.0),
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padding: const WidgetStatePropertyAll(EdgeInsets.only(left: 18, right: 10)),
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backgroundColor: WidgetStatePropertyAll(Theme.of(context).colorScheme.secondaryContainer),
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),
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),
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),
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],
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),
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BlocBuilder<HomeBloc, HomeState>(
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builder: (context, state) => state.error != null
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? Text(
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state.error ?? '',
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style: Theme.of(context).textTheme.headlineSmall?.copyWith(color: Colors.red),
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)
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: state.isLoading
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? const CircularProgressIndicator()
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: BlocBuilder<LikeBloc, LikeState>(
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builder: (context, likeState) => Expanded(
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child: RefreshIndicator(
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onRefresh: _onRefresh,
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child: ListView.builder(
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controller: scrollController,
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padding: EdgeInsets.zero,
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itemCount: state.data?.data?.length ?? 0,
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itemBuilder: (context, index) {
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final data = state.data?.data?[index];
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return data != null
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? _Card.fromData(
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context.locale,
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data,
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isLiked: likeState.likedIds?.contains(data.id) == true,
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onLike: _onLike,
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onTap: () => _navToDetails(context, data),
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)
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: const SizedBox.shrink();
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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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BlocBuilder<HomeBloc, HomeState>(
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builder: (context, state) => state.isPaginationLoading
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? const CircularProgressIndicator()
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: const SizedBox.shrink(),
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),
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],
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)
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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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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 ${isLiked ? context.locale.liked : context.locale.unliked}',
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style: Theme.of(context).textTheme.bodyLarge
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),
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backgroundColor: Colors.deepPurple.shade200,
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duration: const Duration(seconds: 2),
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));
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});
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}
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void _navToDetails(BuildContext context, CardData data) {
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Navigator.push(context, CupertinoPageRoute(builder: (context) => DetailsPage(data)));
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}
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Future<void> _onRefresh() {
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context.read<HomeBloc>().add(HomeLoadDataEvent(search: searchController.text));
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return Future.value(null);
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}
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void _onNextPageListener() {
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if (scrollController.offset >= scrollController.position.maxScrollExtent) {
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final bloc = context.read<HomeBloc>();
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if (!bloc.state.isPaginationLoading) {
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bloc.add(HomeLoadDataEvent(
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search: searchController.text,
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nextPage: bloc.state.data?.nextPage,
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));
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}
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}
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}
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void _onLike(String? id, String title, bool isLiked) {
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if (id != null) {
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context.read<LikeBloc>().add(ChangeLikeEvent(id));
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_showSnackBar(context, title, !isLiked);
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}
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}
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}
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