PMU_Puchkina_A.A_PIbd-32/lib/presentation/home_page/home_page.dart

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Dart
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import 'package:app/components/utils/debounce.dart';
import 'package:app/main.dart';
import 'package:app/presentation/home_page/bloc/bloc.dart';
import 'package:app/presentation/home_page/bloc/events.dart';
import 'package:app/presentation/home_page/bloc/state.dart';
//import 'package:app/repositories/potter_repository.dart';
import 'package:app/repositories/rick&morty_repositoty.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
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import 'package:app/domain/models/card.dart';
import 'package:app/presentation/details_page/details_page.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
part 'card.dart';
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
@override
Widget build(BuildContext context) {
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return const Scaffold(body: Body());
}
}
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class Body extends StatefulWidget {
const Body();
@override
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State<Body> createState() => _BodyState();
}
class _BodyState extends State<Body> {
final searchController = TextEditingController();
final scrollController = ScrollController();
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@override
void initState() {
WidgetsBinding.instance.addPostFrameCallback((_) {
context.read<HomeBloc>().add(const HomeLoadDataEvent());
});
scrollController.addListener(_onNextPageListener);
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super.initState();
}
void _onNextPageListener() {
if (scrollController.offset > scrollController.position.maxScrollExtent) {
final bloc = context.read<HomeBloc>();
if (!bloc.state.isPaginationLoading) {
bloc.add(HomeLoadDataEvent(
search: searchController.text,
nextPage: bloc.state.data?.nextPage,
));
}
}
}
@override
void dispose() {
searchController.dispose();
scrollController.dispose();
super.dispose();
}
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@override
Widget build(BuildContext context) {
return Padding(
padding: EdgeInsets.only(top: MediaQuery.of(context).padding.top),
child: Column(
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children: [
Padding(
padding: const EdgeInsets.all(12),
child: CupertinoSearchTextField(
controller: searchController,
onChanged: (search) {
Debounce.run(() => context.read<HomeBloc>().add(HomeLoadDataEvent(search: search)));
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},
),
),
BlocBuilder<HomeBloc, HomeState>(
builder: (context, state) => state.error != null
? Text(
state.error ?? '',
style: Theme.of(context).textTheme.headlineSmall?.copyWith(color: Colors.red),
)
: state.isLoading
? const CircularProgressIndicator()
: Expanded(
child: RefreshIndicator(
onRefresh: _onRefresh,
child: ListView.builder(
controller: scrollController,
padding: EdgeInsets.zero,
itemCount: state.data?.data?.length ?? 0,
itemBuilder: (context, index) {
final data = state.data?.data?[index];
return data != null
? _Card.fromData(
data,
onLike: (title, isLiked) =>
_showSnackBar(context, title, isLiked),
onTap: () => _navToDetails(context, data),
)
: const SizedBox.shrink();
},
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),
),
),
),
BlocBuilder<HomeBloc, HomeState>(
builder: (context, state) => state.isPaginationLoading
? const CircularProgressIndicator()
: const SizedBox.shrink(),
),
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],
),
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);
}
Future<void> _onRefresh() {
context.read<HomeBloc>().add(HomeLoadDataEvent(search: searchController.text));
return Future.value(null);
}
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void _navToDetails(BuildContext context, CardData data) {
Navigator.push(
context,
CupertinoPageRoute(builder: (context) => DetailsPage(data)),
);
}
void _showSnackBar(BuildContext context, String title, bool isLiked) {
WidgetsBinding.instance.addPostFrameCallback((_) {
ScaffoldMessenger.of(context).showSnackBar(SnackBar(
content: Text(
'Вы ${isLiked ? 'добавили в избранное' : 'убрали из избраных'} $title',
style: Theme.of(context).textTheme.bodyLarge,
),
backgroundColor: Color(0xFFFFFFFF),
duration: const Duration(seconds: 1),
));
});
}
}