mirror of
https://github.com/stonega/tsacdop
synced 2024-12-16 18:30:31 +01:00
924 lines
40 KiB
Dart
924 lines
40 KiB
Dart
import 'dart:io';
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import 'dart:async';
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import 'package:flutter/cupertino.dart';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import 'package:fluttertoast/fluttertoast.dart';
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import 'package:tuple/tuple.dart';
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import 'package:line_icons/line_icons.dart';
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import '../type/episodebrief.dart';
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import '../state/podcast_group.dart';
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import '../state/subscribe_podcast.dart';
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import '../state/download_state.dart';
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import '../type/podcastlocal.dart';
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import '../state/audiostate.dart';
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import '../util/custompaint.dart';
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import '../util/pageroute.dart';
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import '../util/colorize.dart';
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import '../util/context_extension.dart';
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import '../local_storage/sqflite_localpodcast.dart';
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import '../local_storage/key_value_storage.dart';
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import '../episodes/episodedetail.dart';
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import '../podcasts/podcastdetail.dart';
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import '../podcasts/podcastmanage.dart';
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class ScrollPodcasts extends StatefulWidget {
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@override
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_ScrollPodcastsState createState() => _ScrollPodcastsState();
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}
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class _ScrollPodcastsState extends State<ScrollPodcasts> {
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int _groupIndex;
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Future<int> getPodcastUpdateCounts(String id) async {
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var dbHelper = DBHelper();
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return await dbHelper.getPodcastUpdateCounts(id);
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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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_groupIndex = 0;
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}
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Widget _circleContainer(BuildContext context) => Container(
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margin: EdgeInsets.symmetric(horizontal: 10),
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height: 50,
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width: 50,
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decoration:
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BoxDecoration(shape: BoxShape.circle, color: context.primaryColor),
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);
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@override
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Widget build(BuildContext context) {
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double _width = MediaQuery.of(context).size.width;
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return Consumer<GroupList>(builder: (_, groupList, __) {
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var groups = groupList.groups;
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bool isLoading = groupList.isLoading;
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return isLoading
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? Container(
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height: (_width - 20) / 3 + 140,
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)
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: groups[_groupIndex].podcastList.length == 0
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? Container(
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height: (_width - 20) / 3 + 140,
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child: Column(
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mainAxisAlignment: MainAxisAlignment.start,
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mainAxisSize: MainAxisSize.min,
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children: <Widget>[
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GestureDetector(
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onVerticalDragEnd: (event) {
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if (event.primaryVelocity > 200) {
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if (groups.length == 1) {
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Fluttertoast.showToast(
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msg: 'Add some groups',
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gravity: ToastGravity.BOTTOM,
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);
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} else {
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if (mounted)
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setState(() {
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(_groupIndex != 0)
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? _groupIndex--
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: _groupIndex = groups.length - 1;
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});
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}
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} else if (event.primaryVelocity < -200) {
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if (groups.length == 1) {
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Fluttertoast.showToast(
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msg: 'Add some groups',
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gravity: ToastGravity.BOTTOM,
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);
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} else {
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setState(() {
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(_groupIndex < groups.length - 1)
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? _groupIndex++
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: _groupIndex = 0;
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});
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}
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}
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},
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child: Column(
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children: <Widget>[
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Container(
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child: Row(
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children: <Widget>[
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Container(
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padding: EdgeInsets.symmetric(
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horizontal: 15.0),
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child: Text(
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groups[_groupIndex].name,
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style: Theme.of(context)
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.textTheme
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.bodyText1
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.copyWith(
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color: Theme.of(context)
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.accentColor),
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)),
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Spacer(),
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Container(
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height: 30,
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padding:
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EdgeInsets.symmetric(horizontal: 15),
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alignment: Alignment.bottomRight,
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child: InkWell(
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onTap: () {
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Navigator.push(
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context,
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SlideLeftRoute(
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page: PodcastManage()),
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);
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},
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child: Container(
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height: 30,
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padding: EdgeInsets.all(5.0),
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child: Text(
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'See All',
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style: Theme.of(context)
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.textTheme
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.bodyText1
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.copyWith(
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color: Theme.of(context)
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.accentColor),
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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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Container(
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height: 70,
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color:
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Theme.of(context).scaffoldBackgroundColor,
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child: Row(
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children: <Widget>[
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_circleContainer(context),
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_circleContainer(context),
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_circleContainer(context)
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],
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)),
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],
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)),
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Container(
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height: (_width - 20) / 3 + 40,
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color: Theme.of(context).primaryColor,
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margin: EdgeInsets.symmetric(horizontal: 15),
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child: Center(
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child: _groupIndex == 0
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? Text.rich(TextSpan(
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style: context.textTheme.headline6
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.copyWith(height: 2),
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children: [
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TextSpan(
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text: 'Welcome to Tsacdop\n',
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style: context.textTheme.headline6
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.copyWith(
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color: context.accentColor)),
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TextSpan(
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text: 'Get started\n',
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style: context.textTheme.headline6
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.copyWith(
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color: context.accentColor)),
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TextSpan(text: 'Tap '),
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WidgetSpan(
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child:
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Icon(Icons.add_circle_outline)),
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TextSpan(text: ' to subscribe podcasts')
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],
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))
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: Text('No podcast in this group',
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style: TextStyle(
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color: context.textTheme.bodyText2.color
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.withOpacity(0.5)))),
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),
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],
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),
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)
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: DefaultTabController(
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length: groups[_groupIndex].podcastList.length,
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child: Column(
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mainAxisAlignment: MainAxisAlignment.start,
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mainAxisSize: MainAxisSize.min,
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children: <Widget>[
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GestureDetector(
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onVerticalDragEnd: (event) {
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if (event.primaryVelocity > 200) {
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if (groups.length == 1) {
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Fluttertoast.showToast(
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msg: 'Add some groups',
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gravity: ToastGravity.BOTTOM,
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);
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} else {
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if (mounted)
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setState(() {
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(_groupIndex != 0)
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? _groupIndex--
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: _groupIndex = groups.length - 1;
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});
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}
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} else if (event.primaryVelocity < -200) {
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if (groups.length == 1) {
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Fluttertoast.showToast(
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msg: 'Add some groups',
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gravity: ToastGravity.BOTTOM,
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);
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} else {
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setState(() {
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(_groupIndex < groups.length - 1)
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? _groupIndex++
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: _groupIndex = 0;
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});
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}
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}
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},
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child: Column(
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children: <Widget>[
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Container(
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child: Row(
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children: <Widget>[
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Container(
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padding: EdgeInsets.symmetric(
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horizontal: 15.0),
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child: Text(
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groups[_groupIndex].name,
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style: Theme.of(context)
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.textTheme
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.bodyText1
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.copyWith(
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color: Theme.of(context)
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.accentColor),
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)),
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Spacer(),
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Container(
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height: 30.0,
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padding:
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EdgeInsets.symmetric(horizontal: 15),
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alignment: Alignment.bottomRight,
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child: InkWell(
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onTap: () {
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Navigator.push(
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context,
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SlideLeftRoute(page: PodcastManage()),
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);
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},
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child: Container(
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height: 30,
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padding: EdgeInsets.all(5.0),
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child: Text(
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'See All',
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style: Theme.of(context)
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.textTheme
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.bodyText1
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.copyWith(
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color: Theme.of(context)
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.accentColor),
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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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Container(
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height: 70,
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width: _width,
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alignment: Alignment.centerLeft,
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color: context.scaffoldBackgroundColor,
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child: TabBar(
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labelPadding: EdgeInsets.only(
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top: 5.0,
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bottom: 10.0,
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left: 6.0,
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right: 6.0),
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indicator: CircleTabIndicator(
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color: Theme.of(context).accentColor,
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radius: 3),
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isScrollable: true,
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tabs: groups[_groupIndex]
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.podcasts
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.map<Widget>((PodcastLocal podcastLocal) {
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return Tab(
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child: ClipRRect(
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borderRadius: BorderRadius.all(
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Radius.circular(25.0)),
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child: Stack(
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alignment: Alignment.bottomCenter,
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children: <Widget>[
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LimitedBox(
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maxHeight: 50,
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maxWidth: 50,
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child: Image.file(File(
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"${podcastLocal.imagePath}")),
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),
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FutureBuilder<int>(
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future: getPodcastUpdateCounts(
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podcastLocal.id),
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initialData: 0,
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builder: (context, snapshot) {
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return snapshot.data > 0
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? Container(
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alignment:
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Alignment.center,
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height: 10,
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width: 40,
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color: Colors.black54,
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child: Text('New',
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style: TextStyle(
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color:
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Colors.red,
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fontSize: 8,
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fontStyle:
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FontStyle
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.italic)),
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)
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: Center();
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}),
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],
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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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Container(
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height: (_width - 20) / 3 + 40,
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margin: EdgeInsets.only(left: 10, right: 10),
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decoration: BoxDecoration(
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color: Theme.of(context).scaffoldBackgroundColor,
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),
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child: TabBarView(
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children: groups[_groupIndex]
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.podcasts
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.map<Widget>((PodcastLocal podcastLocal) {
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return Container(
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decoration: BoxDecoration(
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color: Theme.of(context).brightness ==
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Brightness.light
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? Theme.of(context).primaryColor
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: Colors.black12),
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margin: EdgeInsets.symmetric(horizontal: 5.0),
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key: ObjectKey(podcastLocal.title),
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child: PodcastPreview(
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podcastLocal: podcastLocal,
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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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});
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}
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}
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class PodcastPreview extends StatelessWidget {
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final PodcastLocal podcastLocal;
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PodcastPreview({this.podcastLocal, Key key}) : super(key: key);
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Future<List<EpisodeBrief>> _getRssItemTop(PodcastLocal podcastLocal) async {
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var dbHelper = DBHelper();
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List<EpisodeBrief> episodes = await dbHelper.getRssItemTop(podcastLocal.id);
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return episodes;
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}
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@override
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Widget build(BuildContext context) {
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Color _c = (Theme.of(context).brightness == Brightness.light)
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? podcastLocal.primaryColor.colorizedark()
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: podcastLocal.primaryColor.colorizeLight();
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return Column(
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children: <Widget>[
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Expanded(
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child: Selector<SubscribeWorker, bool>(
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selector: (_, worker) => worker.created,
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builder: (context, created, child) {
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return FutureBuilder<List<EpisodeBrief>>(
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future: _getRssItemTop(podcastLocal),
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builder: (context, snapshot) {
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if (snapshot.hasError) {
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print(snapshot.error);
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Center();
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}
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return (snapshot.hasData)
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? ShowEpisode(
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episodes: snapshot.data,
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podcastLocal: podcastLocal,
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)
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: Container(
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padding: EdgeInsets.all(5.0),
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);
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},
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);
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}),
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),
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Container(
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height: 40,
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padding: EdgeInsets.only(left: 10.0),
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alignment: Alignment.center,
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child: Row(
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mainAxisAlignment: MainAxisAlignment.start,
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children: <Widget>[
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Expanded(
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flex: 4,
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child: Text(podcastLocal.title,
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maxLines: 1,
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overflow: TextOverflow.visible,
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style: TextStyle(fontWeight: FontWeight.bold, color: _c)),
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),
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Expanded(
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flex: 1,
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child: Container(
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alignment: Alignment.centerRight,
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child: Material(
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color: Colors.transparent,
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child: Selector<AudioPlayerNotifier, bool>(
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selector: (_, audio) => audio.playerRunning,
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builder: (_, playerRunning, __) => IconButton(
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icon: Icon(Icons.arrow_forward),
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tooltip: 'See All',
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onPressed: () {
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Navigator.push(
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context,
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SlideLeftHideRoute(
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transitionPage: PodcastDetail(
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podcastLocal: podcastLocal,
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hide: playerRunning,
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),
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page: PodcastDetail(
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podcastLocal: podcastLocal,
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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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}
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}
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class ShowEpisode extends StatelessWidget {
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final List<EpisodeBrief> episodes;
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final PodcastLocal podcastLocal;
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ShowEpisode({Key key, this.episodes, this.podcastLocal}) : super(key: key);
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String _stringForSeconds(double seconds) {
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if (seconds == null) return null;
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return '${(seconds ~/ 60)}:${(seconds.truncate() % 60).toString().padLeft(2, '0')}';
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}
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Future<int> _isListened(EpisodeBrief episode) async {
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DBHelper dbHelper = DBHelper();
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return await dbHelper.isListened(episode.enclosureUrl);
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}
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Future<bool> _isLiked(EpisodeBrief episode) async {
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DBHelper dbHelper = DBHelper();
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return await dbHelper.isLiked(episode.enclosureUrl);
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}
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Future<List<int>> _getEpisodeMenu() async {
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KeyValueStorage popupMenuStorage = KeyValueStorage(episodePopupMenuKey);
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List<int> list = await popupMenuStorage.getMenu();
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return list;
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}
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Future<bool> _isDownloaded(EpisodeBrief episode) async {
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DBHelper dbHelper = DBHelper();
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return await dbHelper.isDownloaded(episode.enclosureUrl);
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}
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_markListened(EpisodeBrief episode) async {
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DBHelper dbHelper = DBHelper();
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bool marked = await dbHelper.checkMarked(episode);
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if (!marked) {
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final PlayHistory history =
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PlayHistory(episode.title, episode.enclosureUrl, 0, 1);
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await dbHelper.saveHistory(history);
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}
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}
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_saveLiked(String url) async {
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var dbHelper = DBHelper();
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await dbHelper.setLiked(url);
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}
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_setUnliked(String url) async {
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var dbHelper = DBHelper();
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await dbHelper.setUniked(url);
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}
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_showPopupMenu(Offset offset, EpisodeBrief episode, BuildContext context,
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bool isPlaying, bool isInPlaylist) async {
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var audio = Provider.of<AudioPlayerNotifier>(context, listen: false);
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double left = offset.dx;
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double top = offset.dy;
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bool isLiked, isDownload;
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int isListened;
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var downloader = Provider.of<DownloadState>(context, listen: false);
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List<int> menuList = await _getEpisodeMenu();
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if (menuList.contains(3)) isListened = await _isListened(episode);
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if (menuList.contains(2)) isLiked = await _isLiked(episode);
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if (menuList.contains(4)) isDownload = await _isDownloaded(episode);
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await showMenu<int>(
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.all(Radius.circular(10))),
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context: context,
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position: RelativeRect.fromLTRB(left, top, context.width - left, 0),
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items: <PopupMenuEntry<int>>[
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PopupMenuItem(
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value: 0,
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child: Row(
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mainAxisAlignment: MainAxisAlignment.start,
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mainAxisSize: MainAxisSize.max,
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children: <Widget>[
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Icon(
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LineIcons.play_circle_solid,
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color: Theme.of(context).accentColor,
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),
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Padding(
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padding: EdgeInsets.symmetric(horizontal: 2),
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),
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!isPlaying ? Text('Play') : Text('Playing'),
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],
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),
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),
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menuList.contains(1)
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? PopupMenuItem(
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value: 1,
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child: Row(
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children: <Widget>[
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Icon(
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LineIcons.clock_solid,
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color: Colors.red,
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),
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Padding(
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padding: EdgeInsets.symmetric(horizontal: 2),
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),
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!isInPlaylist ? Text('Later') : Text('Remove')
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],
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))
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: null,
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menuList.contains(2)
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? PopupMenuItem(
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value: 2,
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child: Row(
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children: <Widget>[
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Icon(LineIcons.heart, color: Colors.red, size: 21),
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Padding(
|
|
padding: EdgeInsets.symmetric(horizontal: 2),
|
|
),
|
|
isLiked
|
|
? Text(
|
|
'Unlike',
|
|
)
|
|
: Text('Like')
|
|
],
|
|
))
|
|
: null,
|
|
menuList.contains(3)
|
|
? PopupMenuItem(
|
|
value: 3,
|
|
child: Row(
|
|
children: <Widget>[
|
|
SizedBox(
|
|
width: 23,
|
|
height: 23,
|
|
child: CustomPaint(
|
|
painter:
|
|
ListenedAllPainter(Colors.blue, stroke: 1.5)),
|
|
),
|
|
Padding(
|
|
padding: EdgeInsets.symmetric(horizontal: 2),
|
|
),
|
|
isListened > 0
|
|
? Text('Listened',
|
|
style: TextStyle(
|
|
color: context.textColor.withOpacity(0.5)))
|
|
: Text('Mark\nListened')
|
|
],
|
|
))
|
|
: null,
|
|
menuList.contains(4)
|
|
? PopupMenuItem(
|
|
value: 4,
|
|
child: Row(
|
|
children: <Widget>[
|
|
Icon(LineIcons.download_solid, color: Colors.green),
|
|
Padding(
|
|
padding: EdgeInsets.symmetric(horizontal: 2),
|
|
),
|
|
isDownload
|
|
? Text('Downloaded',
|
|
style: TextStyle(
|
|
color: context.textColor.withOpacity(0.5)))
|
|
: Text('Download')
|
|
],
|
|
))
|
|
: null,
|
|
],
|
|
elevation: 5.0,
|
|
).then((value) async {
|
|
switch (value) {
|
|
case 0:
|
|
if (!isPlaying) audio.episodeLoad(episode);
|
|
break;
|
|
case 1:
|
|
if (!isInPlaylist) {
|
|
audio.addToPlaylist(episode);
|
|
Fluttertoast.showToast(
|
|
msg: 'Added to playlist',
|
|
gravity: ToastGravity.BOTTOM,
|
|
);
|
|
} else {
|
|
audio.delFromPlaylist(episode);
|
|
Fluttertoast.showToast(
|
|
msg: 'Removed from playlist',
|
|
gravity: ToastGravity.BOTTOM,
|
|
);
|
|
}
|
|
break;
|
|
case 2:
|
|
if (isLiked) {
|
|
await _setUnliked(episode.enclosureUrl);
|
|
audio.setEpisodeState = true;
|
|
Fluttertoast.showToast(
|
|
msg: 'Unliked',
|
|
gravity: ToastGravity.BOTTOM,
|
|
);
|
|
} else {
|
|
await _saveLiked(episode.enclosureUrl);
|
|
audio.setEpisodeState = true;
|
|
Fluttertoast.showToast(
|
|
msg: 'Liked',
|
|
gravity: ToastGravity.BOTTOM,
|
|
);
|
|
}
|
|
break;
|
|
case 3:
|
|
if (isListened < 1) {
|
|
await _markListened(episode);
|
|
audio.setEpisodeState = true;
|
|
Fluttertoast.showToast(
|
|
msg: 'Mark listened',
|
|
gravity: ToastGravity.BOTTOM,
|
|
);
|
|
}
|
|
break;
|
|
|
|
case 4:
|
|
if (!isDownload) downloader.startTask(episode);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
});
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
double _width = context.width;
|
|
Offset offset;
|
|
return CustomScrollView(
|
|
physics: NeverScrollableScrollPhysics(),
|
|
primary: false,
|
|
slivers: <Widget>[
|
|
SliverPadding(
|
|
padding: const EdgeInsets.all(5.0),
|
|
sliver: SliverGrid(
|
|
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
|
|
childAspectRatio: 1.5,
|
|
crossAxisCount: 2,
|
|
mainAxisSpacing: 6.0,
|
|
crossAxisSpacing: 6.0,
|
|
),
|
|
delegate: SliverChildBuilderDelegate(
|
|
(BuildContext context, int index) {
|
|
Color _c = (Theme.of(context).brightness == Brightness.light)
|
|
? podcastLocal.primaryColor.colorizedark()
|
|
: podcastLocal.primaryColor.colorizeLight();
|
|
return Selector<AudioPlayerNotifier,
|
|
Tuple2<EpisodeBrief, List<String>>>(
|
|
selector: (_, audio) => Tuple2(
|
|
audio?.episode,
|
|
audio.queue.playlist.map((e) => e.enclosureUrl).toList(),
|
|
),
|
|
builder: (_, data, __) => Container(
|
|
decoration: BoxDecoration(
|
|
borderRadius: BorderRadius.all(Radius.circular(5.0)),
|
|
color: Theme.of(context).scaffoldBackgroundColor,
|
|
),
|
|
alignment: Alignment.center,
|
|
child: Material(
|
|
color: Colors.transparent,
|
|
child: InkWell(
|
|
borderRadius: BorderRadius.all(Radius.circular(5.0)),
|
|
onTapDown: (details) => offset = Offset(
|
|
details.globalPosition.dx,
|
|
details.globalPosition.dy),
|
|
onLongPress: () => _showPopupMenu(
|
|
offset,
|
|
episodes[index],
|
|
context,
|
|
data.item1 == episodes[index],
|
|
data.item2.contains(episodes[index].enclosureUrl)),
|
|
onTap: () {
|
|
Navigator.push(
|
|
context,
|
|
ScaleRoute(
|
|
page: EpisodeDetail(
|
|
episodeItem: episodes[index],
|
|
heroTag: 'scroll',
|
|
//unique hero tag
|
|
)),
|
|
);
|
|
},
|
|
child: Container(
|
|
padding: EdgeInsets.all(10.0),
|
|
child: Column(
|
|
mainAxisAlignment: MainAxisAlignment.center,
|
|
children: <Widget>[
|
|
Expanded(
|
|
flex: 2,
|
|
child: Row(
|
|
mainAxisAlignment: MainAxisAlignment.start,
|
|
children: <Widget>[
|
|
Hero(
|
|
tag: episodes[index].enclosureUrl +
|
|
'scroll',
|
|
child: Container(
|
|
height: _width / 18,
|
|
width: _width / 18,
|
|
child: CircleAvatar(
|
|
backgroundImage: FileImage(File(
|
|
"${podcastLocal.imagePath}")),
|
|
),
|
|
),
|
|
),
|
|
Spacer(),
|
|
Selector<AudioPlayerNotifier,
|
|
Tuple2<EpisodeBrief, bool>>(
|
|
selector: (_, audio) => Tuple2(
|
|
audio.episode, audio.playerRunning),
|
|
builder: (_, data, __) {
|
|
return (episodes[index]
|
|
.enclosureUrl ==
|
|
data.item1
|
|
?.enclosureUrl &&
|
|
data.item2)
|
|
? Container(
|
|
height: 20,
|
|
width: 20,
|
|
margin: EdgeInsets.symmetric(
|
|
horizontal: 2),
|
|
decoration: BoxDecoration(
|
|
shape: BoxShape.circle,
|
|
),
|
|
child: WaveLoader(
|
|
color:
|
|
context.accentColor))
|
|
: Center();
|
|
}),
|
|
episodes[index].isNew == 1
|
|
? Text(
|
|
'New',
|
|
style: TextStyle(
|
|
color: Colors.red,
|
|
fontStyle: FontStyle.italic),
|
|
)
|
|
: Center(),
|
|
],
|
|
),
|
|
),
|
|
Expanded(
|
|
flex: 5,
|
|
child: Container(
|
|
padding: EdgeInsets.only(top: 2.0),
|
|
alignment: Alignment.topLeft,
|
|
child: Text(
|
|
episodes[index].title,
|
|
style: TextStyle(
|
|
//fontSize: _width / 32,
|
|
),
|
|
maxLines: 4,
|
|
overflow: TextOverflow.fade,
|
|
),
|
|
),
|
|
),
|
|
Expanded(
|
|
flex: 1,
|
|
child: Row(
|
|
children: <Widget>[
|
|
Container(
|
|
alignment: Alignment.bottomLeft,
|
|
child: Text(
|
|
episodes[index].dateToString(),
|
|
//podcast[index].pubDate.substring(4, 16),
|
|
style: TextStyle(
|
|
fontSize: _width / 35,
|
|
color: _c,
|
|
fontStyle: FontStyle.italic,
|
|
),
|
|
),
|
|
),
|
|
Spacer(),
|
|
episodes[index].duration != 0
|
|
? Container(
|
|
alignment: Alignment.center,
|
|
child: Text(
|
|
_stringForSeconds(
|
|
episodes[index]
|
|
.duration
|
|
.toDouble())
|
|
.toString(),
|
|
style: TextStyle(
|
|
fontSize: _width / 35,
|
|
// color: _c,
|
|
// fontStyle: FontStyle.italic,
|
|
),
|
|
),
|
|
)
|
|
: Center(),
|
|
episodes[index].duration == 0 ||
|
|
episodes[index].enclosureLength ==
|
|
null ||
|
|
episodes[index].enclosureLength ==
|
|
0
|
|
? Center()
|
|
: Text(
|
|
'|',
|
|
style: TextStyle(
|
|
fontSize: _width / 35,
|
|
// color: _c,
|
|
// fontStyle: FontStyle.italic,
|
|
),
|
|
),
|
|
episodes[index].enclosureLength != null &&
|
|
episodes[index].enclosureLength !=
|
|
0
|
|
? Container(
|
|
alignment: Alignment.center,
|
|
child: Text(
|
|
((episodes[index]
|
|
.enclosureLength) ~/
|
|
1000000)
|
|
.toString() +
|
|
'MB',
|
|
style: TextStyle(
|
|
fontSize: _width / 35),
|
|
),
|
|
)
|
|
: Center(),
|
|
],
|
|
)),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
},
|
|
childCount: (episodes.length > 2) ? 2 : episodes.length,
|
|
),
|
|
),
|
|
),
|
|
],
|
|
);
|
|
}
|
|
}
|
|
|
|
//Circle Indicator
|
|
class CircleTabIndicator extends Decoration {
|
|
final BoxPainter _painter;
|
|
CircleTabIndicator({@required Color color, @required double radius})
|
|
: _painter = _CirclePainter(color, radius);
|
|
@override
|
|
BoxPainter createBoxPainter([onChanged]) => _painter;
|
|
}
|
|
|
|
class _CirclePainter extends BoxPainter {
|
|
final Paint _paint;
|
|
final double radius;
|
|
|
|
_CirclePainter(Color color, this.radius)
|
|
: _paint = Paint()
|
|
..color = color
|
|
..isAntiAlias = true;
|
|
|
|
@override
|
|
void paint(Canvas canvas, Offset offset, ImageConfiguration cfg) {
|
|
final Offset circleOffset =
|
|
offset + Offset(cfg.size.width / 2, cfg.size.height - radius);
|
|
canvas.drawCircle(circleOffset, radius, _paint);
|
|
}
|
|
}
|