new project stable version
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273
lib/presentation/screens/news_screen.dart
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273
lib/presentation/screens/news_screen.dart
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import 'package:flutter/material.dart';
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import 'package:flutter_bloc/flutter_bloc.dart';
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import 'dart:developer' as dev;
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import '../../core/app_colors.dart';
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import '../../di/service_locator.dart';
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import '../components/custom_app_bar.dart';
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import '../event/news_event.dart';
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import '../state/news_state.dart';
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import '../viewmodel/news_bloc.dart';
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import 'news_detail_screen.dart';
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class NewsScreen extends StatelessWidget {
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const NewsScreen({super.key});
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@override
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Widget build(BuildContext context) {
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dev.log('🔍 NewsScreen: Создание экрана новостей');
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return BlocProvider(
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create: (context) {
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dev.log('🔍 NewsScreen: Создание NewsBloc');
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return getIt<NewsBloc>()..add(const NewsFetchRequested());
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},
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child: const NewsView(),
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);
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}
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}
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class NewsView extends StatelessWidget {
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const NewsView({super.key});
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@override
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Widget build(BuildContext context) {
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dev.log('🔍 NewsView: Построение UI');
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return Scaffold(
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body: Container(
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decoration: const BoxDecoration(gradient: AppColors.phoneScreenBg),
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child: SafeArea(
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child: Column(
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children: [
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const SizedBox(height: 16),
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const Padding(
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padding: EdgeInsets.symmetric(horizontal: 20),
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child: CustomAppBar(title: 'Новости'),
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),
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const SizedBox(height: 32),
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Expanded(
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child: BlocBuilder<NewsBloc, NewsState>(
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builder: (context, state) {
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dev.log('🔍 NewsView: Состояние ${state.status}, новостей: ${state.news.length}');
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if (state.status == NewsStatus.initial || state.status == NewsStatus.loading) {
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return const Center(
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child: CircularProgressIndicator(color: Colors.white),
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);
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}
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if (state.status == NewsStatus.failure) {
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return Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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const Text(
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'Ошибка загрузки новостей',
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style: TextStyle(
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color: Colors.white,
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fontSize: 16,
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fontWeight: FontWeight.w600,
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),
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),
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const SizedBox(height: 16),
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 40),
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child: Text(
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state.errorMessage ?? '',
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style: TextStyle(
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color: Colors.white.withOpacity(0.6),
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fontSize: 14,
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),
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textAlign: TextAlign.center,
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),
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),
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const SizedBox(height: 24),
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ElevatedButton(
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onPressed: () {
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dev.log('🔍 NewsView: Повторная загрузка');
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context.read<NewsBloc>().add(const NewsFetchRequested());
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},
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style: ElevatedButton.styleFrom(
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backgroundColor: AppColors.smsDigit,
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),
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child: const Text('Повторить'),
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),
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],
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),
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);
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}
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if (state.news.isEmpty) {
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return const _EmptyState();
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}
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return ListView.builder(
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padding: const EdgeInsets.symmetric(horizontal: 20),
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itemCount: state.news.length,
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itemBuilder: (context, index) {
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return _NewsCard(news: state.news[index]);
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},
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);
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},
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),
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),
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const SizedBox(height: 20),
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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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class _EmptyState extends StatelessWidget {
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const _EmptyState();
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@override
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Widget build(BuildContext context) {
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return Column(
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mainAxisAlignment: MainAxisAlignment.center,
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crossAxisAlignment: CrossAxisAlignment.center,
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children: [
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Image.asset(
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'assets/news_empty.png',
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width: 280,
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height: 280,
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fit: BoxFit.contain,
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errorBuilder: (context, error, stackTrace) {
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return const Icon(
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Icons.newspaper_outlined,
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size: 120,
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color: Colors.white38,
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);
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},
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),
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const SizedBox(height: 32),
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const Padding(
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padding: EdgeInsets.symmetric(horizontal: 40),
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child: Text(
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'Следите за нашими последними новостями и акциями! Сейчас их нет, но скоро они появятся.',
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textAlign: TextAlign.center,
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style: TextStyle(
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color: Colors.white70,
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fontSize: 16,
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height: 1.5,
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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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class _NewsCard extends StatelessWidget {
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final dynamic news;
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const _NewsCard({required this.news});
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@override
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Widget build(BuildContext context) {
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final date = _formatDate(news.publishedAt);
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return Container(
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margin: const EdgeInsets.only(bottom: 16),
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padding: const EdgeInsets.all(16),
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decoration: BoxDecoration(
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color: const Color(0xFF141530),
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borderRadius: BorderRadius.circular(16),
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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date,
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style: const TextStyle(
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color: AppColors.white70,
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fontSize: 12,
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),
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),
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const SizedBox(height: 8),
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Text(
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news.title,
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style: const TextStyle(
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color: Colors.white,
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fontSize: 16,
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fontWeight: FontWeight.bold,
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),
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),
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const SizedBox(height: 8),
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Text(
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news.previewText,
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style: const TextStyle(
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color: Colors.white70,
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fontSize: 14,
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height: 1.4,
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),
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),
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const SizedBox(height: 16),
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SizedBox(
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height: 40,
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child: OutlinedButton(
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onPressed: () {
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (context) => NewsDetailScreen(
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newsId: news.id,
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title: news.title,
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),
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),
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);
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},
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style: OutlinedButton.styleFrom(
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(24),
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),
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side: BorderSide(color: AppColors.smsDigit.withOpacity(0.3)),
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padding: const EdgeInsets.symmetric(horizontal: 20),
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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const Text(
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'Подробнее',
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style: TextStyle(color: AppColors.smsDigit),
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),
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const SizedBox(width: 8),
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Icon(
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Icons.arrow_forward_ios_sharp,
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size: 12,
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color: AppColors.smsDigit,
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),
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Icon(
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Icons.arrow_forward_ios_sharp,
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size: 12,
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color: AppColors.smsDigit.withOpacity(0.6),
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),
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Icon(
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Icons.arrow_forward_ios_sharp,
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size: 12,
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color: AppColors.smsDigit.withOpacity(0.3),
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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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String _formatDate(DateTime date) {
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final now = DateTime.now();
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final difference = now.difference(date);
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if (difference.inDays == 0) {
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return 'Сегодня, ${date.hour.toString().padLeft(2, '0')}:${date.minute.toString().padLeft(2, '0')}';
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} else if (difference.inDays == 1) {
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return 'Вчера, ${date.hour.toString().padLeft(2, '0')}:${date.minute.toString().padLeft(2, '0')}';
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} else {
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return '${date.day.toString().padLeft(2, '0')}.${date.month.toString().padLeft(2, '0')}.${date.year}, ${date.hour.toString().padLeft(2, '0')}:${date.minute.toString().padLeft(2, '0')}';
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}
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}
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}
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