493 lines
18 KiB
Dart
493 lines
18 KiB
Dart
import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:line_icons/line_icons.dart';
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import 'package:provider/provider.dart';
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import '../.env.dart';
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import '../local_storage/key_value_storage.dart';
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import '../service/search_api.dart';
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import '../state/search_state.dart';
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import '../type/search_api/search_genre.dart';
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import '../type/search_api/searchpodcast.dart';
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import '../util/extension_helper.dart';
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import '../widgets/custom_widget.dart';
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import 'search_podcast.dart';
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class DiscoveryPage extends StatefulWidget {
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DiscoveryPage({this.onTap, Key key}) : super(key: key);
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final ValueChanged<String> onTap;
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@override
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DiscoveryPageState createState() => DiscoveryPageState();
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}
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class DiscoveryPageState extends State<DiscoveryPage> {
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Genre _selectedGenre;
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Genre get selectedGenre => _selectedGenre;
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final List<OnlinePodcast> _podcastList = [];
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Future _searchTopPodcast;
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Future _getIfHideDiscovery;
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Future<List<String>> _getSearchHistory() {
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final storage = KeyValueStorage(searchHistoryKey);
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final history = storage.getStringList();
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return history;
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}
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void backToHome() {
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setState(() {
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_selectedGenre = null;
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});
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}
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@override
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void initState() {
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super.initState();
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_searchTopPodcast = _getTopPodcasts(page: 1);
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_getIfHideDiscovery = _getHideDiscovery();
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}
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Widget _loadTopPodcasts() => Container(
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(10), color: context.primaryColor),
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width: 120,
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margin: EdgeInsets.fromLTRB(10, 10, 0, 10),
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padding: EdgeInsets.all(4),
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alignment: Alignment.topCenter,
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child: Column(
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children: [
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Expanded(
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flex: 2,
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child: Center(
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child: Container(
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height: 50,
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width: 50,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: context.primaryColorDark,
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),
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alignment: Alignment.center,
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child: SizedBox(
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width: 20,
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height: 2,
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child: LinearProgressIndicator(value: 0),
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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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flex: 1,
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Container(
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width: 80,
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height: context.textTheme.bodyText1.fontSize,
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decoration: BoxDecoration(
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color: context.primaryColorDark,
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borderRadius: BorderRadius.circular(4)),
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),
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SizedBox(height: 10),
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Container(
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width: 40,
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height: context.textTheme.bodyText1.fontSize,
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decoration: BoxDecoration(
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color: context.primaryColorDark,
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borderRadius: BorderRadius.circular(4)),
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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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flex: 1,
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child: Center(
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child: SizedBox(
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height: 32,
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child: OutlineButton(
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color: context.accentColor.withOpacity(0.5),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(100.0),
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side: BorderSide(color: Colors.grey[500])),
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highlightedBorderColor: Colors.grey[500],
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disabledTextColor: Colors.grey[500],
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child: Text(context.s.subscribe),
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disabledBorderColor: Colors.grey[500],
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onPressed: () {}),
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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 _historyList() => FutureBuilder<List<String>>(
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future: _getSearchHistory(),
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initialData: [],
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builder: (context, snapshot) {
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if (snapshot.hasData && snapshot.data.isNotEmpty) {
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final history = snapshot.data;
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return Wrap(
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direction: Axis.horizontal,
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children: history
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.map<Widget>((e) => Padding(
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padding: const EdgeInsets.fromLTRB(8, 2, 0, 0),
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child: FlatButton.icon(
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color: Colors.accents[history.indexOf(e)].withAlpha(70),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(100.0),
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),
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onPressed: () => widget.onTap(e),
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label: Text(e),
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icon: Icon(
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Icons.search,
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size: 20,
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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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return SizedBox(
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height: 0,
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);
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});
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Widget _podcastCard(OnlinePodcast podcast, {VoidCallback onTap}) {
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return Container(
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(10),
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color: context.primaryColor,
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border:
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Border.all(color: context.textColor.withOpacity(0.1), width: 1)),
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width: 120,
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margin: EdgeInsets.fromLTRB(10, 10, 0, 10),
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child: Material(
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color: Colors.transparent,
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borderRadius: BorderRadius.circular(10),
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clipBehavior: Clip.hardEdge,
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child: InkWell(
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onTap: onTap,
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child: Padding(
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padding: EdgeInsets.all(4.0),
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child: Column(
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children: [
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Expanded(
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flex: 2,
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child: Center(child: PodcastAvatar(podcast)),
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),
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Expanded(
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flex: 1,
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child: Text(
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podcast.title,
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textAlign: TextAlign.center,
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maxLines: 2,
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overflow: TextOverflow.fade,
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style: TextStyle(fontWeight: FontWeight.bold),
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),
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),
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Expanded(
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flex: 1,
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child: Center(
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child:
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SizedBox(height: 32, child: SubscribeButton(podcast)),
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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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Future<List<OnlinePodcast>> _getTopPodcasts({int page}) async {
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if (environment['apiKey'] == '') return [];
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final searchEngine = ListenNotesSearch();
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try {
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var searchResult = await searchEngine.fetchBestPodcast(
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genre: '',
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page: page,
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);
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final podcastTopList =
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searchResult.podcasts.map((e) => e?.toOnlinePodcast).toList();
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_podcastList.addAll(podcastTopList.cast());
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return _podcastList;
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} catch (e) {
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return [];
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}
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}
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Future<bool> _getHideDiscovery() async {
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final storage = KeyValueStorage(hidePodcastDiscoveryKey);
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return await storage.getBool(defaultValue: false);
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}
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@override
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Widget build(BuildContext context) {
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return FutureBuilder<bool>(
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future: _getIfHideDiscovery,
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builder: (context, snapshot) {
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if (!snapshot.hasData) {
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return Center();
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} else if (snapshot.data || environment['apiKey'] == '') {
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return ScrollConfiguration(
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behavior: NoGrowBehavior(),
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child: SingleChildScrollView(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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_historyList(),
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SizedBox(
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height: 150,
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child: Center(
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child: Icon(
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Icons.search,
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size: 80,
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color: Colors.grey[400],
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),
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),
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),
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SizedBox(
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height: 50,
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child: Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(
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LineIcons.microphone,
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size: 30,
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color: Colors.lightBlue,
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),
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SizedBox(width: 50),
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Icon(
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LineIcons.broadcastTower,
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size: 30,
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color: Colors.deepPurple,
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),
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SizedBox(width: 50),
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Icon(
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LineIcons.rssSquare,
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size: 30,
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color: Colors.blueGrey,
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),
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],
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),
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),
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Padding(
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padding: EdgeInsets.fromLTRB(50, 20, 50, 20),
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child: Center(
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child: Text(
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context.s.searchHelper,
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textAlign: TextAlign.center,
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style: context.textTheme.headline6
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.copyWith(color: Colors.grey[400]),
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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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} else {
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return PodcastSlideup(
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searchEngine: SearchEngine.listenNotes,
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child: Selector<SearchState, Genre>(
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selector: (_, searchState) => searchState.genre,
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builder: (_, genre, __) => IndexedStack(
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index: genre == null ? 0 : 1,
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children: [
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SingleChildScrollView(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.start,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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_historyList(),
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SizedBox(height: 8),
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SizedBox(
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height: 200,
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child: FutureBuilder<List<OnlinePodcast>>(
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future: _searchTopPodcast,
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builder: (context, snapshot) {
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return ScrollConfiguration(
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behavior: NoGrowBehavior(),
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child: ListView(
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addAutomaticKeepAlives: true,
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scrollDirection: Axis.horizontal,
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children: snapshot.hasData
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? snapshot.data
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.map<Widget>((podcast) {
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return _podcastCard(
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podcast,
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onTap: () {
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context
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.read<SearchState>()
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.selectedPodcast =
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podcast;
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widget.onTap('');
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},
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);
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}).toList()
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: [
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_loadTopPodcasts(),
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_loadTopPodcasts(),
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_loadTopPodcasts(),
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_loadTopPodcasts(),
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]),
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);
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}),
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),
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Padding(
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padding: EdgeInsets.fromLTRB(20, 10, 10, 4),
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child: Text('Categories',
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style: context.textTheme.headline6
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.copyWith(color: context.accentColor)),
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),
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ListView(
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shrinkWrap: true,
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physics: NeverScrollableScrollPhysics(),
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children: genres
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.map<Widget>((e) => ListTile(
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contentPadding:
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EdgeInsets.fromLTRB(20, 0, 20, 0),
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onTap: () {
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widget.onTap('');
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context.read<SearchState>().setGenre =
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e;
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},
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title: Text(e.name,
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style: context.textTheme.headline6),
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))
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.toList(),
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),
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SizedBox(
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height: 40,
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child: Center(
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child: Image(
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image: context.brightness == Brightness.light
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? AssetImage('assets/listennotes.png')
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: AssetImage(
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'assets/listennotes_light.png'),
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height: 15,
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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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genre == null ? Center() : _TopPodcastList(genre: genre),
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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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class _TopPodcastList extends StatefulWidget {
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final Genre genre;
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_TopPodcastList({this.genre, Key key}) : super(key: key);
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@override
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__TopPodcastListState createState() => __TopPodcastListState();
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}
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class __TopPodcastListState extends State<_TopPodcastList> {
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final List<OnlinePodcast> _podcastList = [];
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Future _searchFuture;
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bool _loading;
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int _page;
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Future<List<OnlinePodcast>> _getTopPodcasts({Genre genre, int page}) async {
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final searchEngine = ListenNotesSearch();
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var searchResult = await searchEngine.fetchBestPodcast(
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genre: genre.id,
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page: page,
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);
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final podcastTopList =
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searchResult.podcasts.map((e) => e?.toOnlinePodcast).toList();
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_podcastList.addAll(podcastTopList.cast());
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_loading = false;
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return _podcastList;
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}
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@override
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void initState() {
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_page = 1;
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try {
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_searchFuture = _getTopPodcasts(genre: widget.genre, page: _page);
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} catch (e) {}
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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 FutureBuilder(
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future: _searchFuture,
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builder: (context, snapshot) {
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if (!snapshot.hasData) {
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return Container(
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padding: EdgeInsets.only(top: 200),
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alignment: Alignment.topCenter,
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child: CircularProgressIndicator(),
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);
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}
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final content = snapshot.data;
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return CustomScrollView(
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slivers: [
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SliverToBoxAdapter(
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child: Padding(
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padding: EdgeInsets.fromLTRB(20, 10, 10, 4),
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child: Text(widget.genre.name,
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style: context.textTheme.headline6
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.copyWith(color: context.accentColor)),
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),
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),
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SliverList(
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delegate: SliverChildBuilderDelegate(
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(context, index) {
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return SearchResult(
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onlinePodcast: content[index],
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);
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},
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childCount: content.length,
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),
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),
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SliverToBoxAdapter(
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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceEvenly,
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mainAxisSize: MainAxisSize.min,
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children: [
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Padding(
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padding: const EdgeInsets.only(top: 10.0, bottom: 20.0),
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child: OutlineButton(
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highlightedBorderColor: context.accentColor,
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splashColor: context.accentColor.withOpacity(0.5),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.all(Radius.circular(100))),
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child: _loading
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? SizedBox(
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height: 20,
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width: 20,
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child: CircularProgressIndicator(
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strokeWidth: 2,
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))
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: Text(context.s.loadMore),
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onPressed: () => _loading
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? null
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: setState(
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() {
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_loading = true;
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_page++;
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_searchFuture = _getTopPodcasts(
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genre: widget.genre, page: _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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],
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);
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},
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);
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}
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}
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