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Extract NotificationsList widget from HomeScreen into its own file
HomeScreen is now a StatelessWidget responsible only for the responsive layout structure. All notification state, pagination, filtering, and mark-as-read logic lives in the new NotificationsList widget. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
rzuasti
co-authored by
Claude Sonnet 4.6
Claude Sonnet 4.6
parent
85b86026cb
commit
39f382fd0d
@@ -0,0 +1,263 @@
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import 'dart:async';
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import 'package:flutter/material.dart';
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import '../model/notification.dart' as oott_model;
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import '../utils/friendly_date_formatter.dart';
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import '../utils/oott_api.dart';
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import '../utils/ui_snackbars.dart';
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import 'notification_card.dart';
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const _pageSize = 5;
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enum _NotificationFilter {
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newOnly('New'),
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oldOnly('Old'),
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all('All');
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const _NotificationFilter(this.label);
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final String label;
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bool? get isNew => switch (this) {
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_NotificationFilter.newOnly => true,
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_NotificationFilter.oldOnly => false,
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_NotificationFilter.all => null,
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};
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}
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class NotificationsList extends StatefulWidget {
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const NotificationsList({super.key, this.trailingSlivers = const []});
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final List<Widget> trailingSlivers;
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@override
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State<NotificationsList> createState() => _NotificationsListState();
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}
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class _NotificationsListState extends State<NotificationsList> {
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_NotificationFilter _filter = _NotificationFilter.newOnly;
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Timer? _notificationTimer;
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int _currentPage = 0;
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List<oott_model.Notification> _items = [];
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bool _isLoading = false;
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bool _hasNextPage = false;
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@override
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void initState() {
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super.initState();
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_fetchPage(0);
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_notificationTimer = Timer.periodic(
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const Duration(minutes: 1),
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(_) => _fetchPage(_currentPage),
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);
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}
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@override
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void dispose() {
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_notificationTimer?.cancel();
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super.dispose();
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}
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Future<void> _fetchPage(int page) async {
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if (_isLoading) return;
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setState(() => _isLoading = true);
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try {
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final results = await BackendAPI.instance
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.listNotifications(_filter.isNew, page * _pageSize, limit: _pageSize + 1);
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if (!mounted) return;
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setState(() {
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_currentPage = page;
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_hasNextPage = results.length > _pageSize;
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_items = _hasNextPage ? results.take(_pageSize).toList() : results;
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_isLoading = false;
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});
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} catch (_) {
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if (!mounted) return;
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setState(() => _isLoading = false);
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}
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}
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Future<void> _markAllAsRead(BuildContext context) async {
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await BackendAPI.instance.markAllNotificationsAsRead();
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_fetchPage(_currentPage);
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if (context.mounted) {
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UISnackbars.showSuccess(context, 'All notifications marked as read');
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}
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}
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Future<bool> _setRead(
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BuildContext context,
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oott_model.Notification item,
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bool read,
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) async {
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if (item.isNew == !read) {
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UISnackbars.showWarning(
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context,
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'Notification was already marked as ${read ? 'read' : 'unread'}',
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);
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return false;
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}
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if (read) {
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await BackendAPI.instance.markNotificationAsRead(item.id);
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} else {
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await BackendAPI.instance.markNotificationAsNew(item.id);
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}
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if (!context.mounted) return false;
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UISnackbars.showSuccess(
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context,
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'Event marked as ${read ? 'read' : 'unread'}',
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);
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if (_filter != _NotificationFilter.all) {
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setState(() => _items = _items.where((n) => n.id != item.id).toList());
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return true;
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}
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setState(
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() => _items = _items
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.map((n) => n.id == item.id ? n.copyWith(isNew: !read) : n)
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.toList(),
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);
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return false;
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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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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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_buildNotificationsHeader(context),
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Expanded(
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child: CustomScrollView(
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slivers: [
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..._buildNotificationSlivers(context),
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...widget.trailingSlivers,
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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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Widget _buildNotificationsHeader(BuildContext context) {
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Row(
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children: [
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Text(
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'Notifications',
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style: Theme.of(context).textTheme.titleLarge,
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),
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const Spacer(),
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if (_filter == _NotificationFilter.newOnly && _items.isNotEmpty)
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IconButton(
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onPressed: () => _markAllAsRead(context),
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icon: const Icon(Icons.done_all),
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tooltip: 'Mark all as read',
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),
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],
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),
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SingleChildScrollView(
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scrollDirection: Axis.horizontal,
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padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 6),
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child: Wrap(
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spacing: 8.0,
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children: _NotificationFilter.values
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.map(
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(f) => ChoiceChip(
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label: Text(f.label),
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selected: _filter == f,
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onSelected: (_) {
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setState(() => _filter = f);
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_fetchPage(0);
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},
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),
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)
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.toList(),
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),
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),
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],
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);
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}
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List<Widget> _buildNotificationSlivers(BuildContext context) {
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if (_isLoading) {
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return [
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const SliverFillRemaining(
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child: Center(child: CircularProgressIndicator()),
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),
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];
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}
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if (_items.isEmpty) {
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return [
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SliverToBoxAdapter(
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child: Padding(
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padding: const EdgeInsets.only(top: 16, bottom: 12),
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child: Center(
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child: Text(
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'No items found',
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style: Theme.of(context).textTheme.bodyMedium?.copyWith(
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color: Theme.of(context).colorScheme.onSurfaceVariant,
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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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return [
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_buildNotificationSliver(),
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if (_currentPage > 0 || _hasNextPage) _buildPaginationControls(context),
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];
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}
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Widget _buildNotificationSliver() {
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final formatter = FriendlyDateFormatter();
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return SliverList.builder(
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itemCount: _items.length,
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itemBuilder: (context, index) {
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final item = _items[index];
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return NotificationCard(
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item: item,
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formatter: formatter,
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onSetRead: (ctx, read) => _setRead(ctx, item, read),
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);
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},
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);
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}
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Widget _buildPaginationControls(BuildContext context) {
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return SliverToBoxAdapter(
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child: Padding(
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padding: const EdgeInsets.symmetric(vertical: 8),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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IconButton.outlined(
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onPressed: _currentPage > 0 && !_isLoading
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? () => _fetchPage(_currentPage - 1)
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: null,
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icon: const Icon(Icons.chevron_left),
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tooltip: 'Previous page',
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),
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 16),
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child: Text(
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'Page ${_currentPage + 1}',
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style: Theme.of(context).textTheme.bodyMedium,
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),
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),
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IconButton.outlined(
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onPressed: _hasNextPage && !_isLoading
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? () => _fetchPage(_currentPage + 1)
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: null,
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icon: const Icon(Icons.chevron_right),
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tooltip: 'Next page',
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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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