288 lines
12 KiB
Dart
288 lines
12 KiB
Dart
import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter_downloader/flutter_downloader.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:line_icons/line_icons.dart';
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import 'package:tsacdop/class/episodebrief.dart';
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import 'package:tsacdop/local_storage/sqflite_localpodcast.dart';
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class DownloadsManage extends StatefulWidget {
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@override
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_DownloadsManageState createState() => _DownloadsManageState();
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}
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class _DownloadsManageState extends State<DownloadsManage> {
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//Downloaded size
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int _size;
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//Downloaded files
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int _fileNum;
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bool _loadEpisodes;
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bool _clearing;
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List<EpisodeBrief> _selectedList;
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List<EpisodeBrief> _episodes = [];
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_getDownloadedRssItem() async {
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_episodes = [];
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final tasks = await FlutterDownloader.loadTasksWithRawQuery(
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query: "SELECT * FROM task WHERE status = 3");
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var dbHelper = DBHelper();
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await Future.forEach(tasks, (task) async {
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EpisodeBrief episode = await dbHelper.getRssItemWithUrl(task.url);
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_episodes.add(episode);
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});
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setState(() {
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_loadEpisodes = true;
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});
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}
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_getStorageSize() async {
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_size = 0;
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_fileNum = 0;
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var dir = await getExternalStorageDirectory();
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dir.list().forEach((d) {
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var fileDir = Directory(d.path);
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fileDir.list().forEach((file) async {
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await File(file.path).stat().then((value) {
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_size += value.size;
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_fileNum += 1;
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setState(() {});
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});
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});
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});
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}
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_delSelectedEpisodes() async {
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setState(() => _clearing = true);
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await Future.forEach(_selectedList, (EpisodeBrief episode) async {
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print(episode.downloaded);
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await FlutterDownloader.remove(
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taskId: episode.downloaded, shouldDeleteContent: true);
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var dbHelper = DBHelper();
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await dbHelper.delDownloaded(episode.enclosureUrl);
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setState(() =>
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_episodes.removeWhere((e) => e.enclosureUrl == episode.enclosureUrl));
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});
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await Future.delayed(Duration(seconds: 1));
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setState(() {
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_clearing = false;
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});
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await Future.delayed(Duration(seconds: 1));
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setState(() => _selectedList = []);
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_getStorageSize();
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}
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int sumSelected() {
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int sum = 0;
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if (_selectedList.length == 0) {
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return sum;
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} else {
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_selectedList.forEach((episode) {
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sum += episode.enclosureLength;
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});
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return sum;
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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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_clearing = false;
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_loadEpisodes = false;
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_selectedList = [];
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_getStorageSize();
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_getDownloadedRssItem();
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}
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@override
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Widget build(BuildContext context) {
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return AnnotatedRegion<SystemUiOverlayStyle>(
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value: SystemUiOverlayStyle(
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statusBarIconBrightness: Theme.of(context).accentColorBrightness,
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systemNavigationBarColor: Theme.of(context).primaryColor,
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statusBarColor: Theme.of(context).primaryColor),
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child: SafeArea(
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child: Scaffold(
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appBar: AppBar(
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title: Text('Downloads'),
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elevation: 0,
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backgroundColor: Theme.of(context).primaryColor,
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),
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body: Stack(
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children: <Widget>[
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Column(
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mainAxisAlignment: MainAxisAlignment.start,
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: <Widget>[
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Padding(
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padding: EdgeInsets.all(10.0),
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),
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Container(
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height: 100.0,
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padding: EdgeInsets.only(bottom: 40, left: 60),
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alignment: Alignment.centerLeft,
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child: RichText(
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text: TextSpan(
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text: 'Total ',
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style: TextStyle(
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color: Theme.of(context).accentColor,
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fontSize: 20,
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),
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children: <TextSpan>[
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TextSpan(
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text: _fileNum.toString(),
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style: TextStyle(
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color: Theme.of(context).accentColor,
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fontSize: 40,
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fontWeight: FontWeight.bold)),
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TextSpan(
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text: ' episodes ',
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style: TextStyle(
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color: Theme.of(context).accentColor,
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fontSize: 20,
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)),
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TextSpan(
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text: (_size ~/ 1000000).toString(),
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style: TextStyle(
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color: Theme.of(context).accentColor,
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fontSize: 60,
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fontWeight: FontWeight.bold)),
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TextSpan(
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text: ' Mb',
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style: TextStyle(
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color: Theme.of(context).accentColor,
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fontSize: 20,
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)),
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],
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),
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),
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),
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_loadEpisodes
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? Expanded(
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child: ListView.builder(
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itemCount: _episodes.length,
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shrinkWrap: true,
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scrollDirection: Axis.vertical,
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itemBuilder: (context, index) {
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return Column(
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children: <Widget>[
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ListTile(
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onTap: () {
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if (_selectedList
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.contains(_episodes[index])) {
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setState(() => _selectedList
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.removeWhere((episode) =>
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episode.enclosureUrl ==
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_episodes[index]
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.enclosureUrl));
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} else {
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setState(() => _selectedList
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.add(_episodes[index]));
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}
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},
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leading: CircleAvatar(
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backgroundImage: FileImage(File(
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"${_episodes[index].imagePath}")),
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),
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title: Text(
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_episodes[index].title,
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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),
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subtitle: _episodes[index]
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.enclosureLength !=
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0
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? Text(((_episodes[index]
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.enclosureLength) ~/
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1000000)
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.toString() +
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' Mb')
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: Center(),
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trailing: Checkbox(
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value: _selectedList
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.contains(_episodes[index]),
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onChanged: (bool boo) {
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print(boo);
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if (boo) {
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setState(() => _selectedList
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.add(_episodes[index]));
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} else {
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setState(() => _selectedList
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.removeWhere((episode) =>
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episode.enclosureUrl ==
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_episodes[index]
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.enclosureUrl));
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}
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},
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),
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),
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Divider(
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height: 2,
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),
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],
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);
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}),
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)
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: CircularProgressIndicator(),
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],
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),
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AnimatedPositioned(
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duration: Duration(milliseconds: 800),
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curve: Curves.elasticInOut,
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left: MediaQuery.of(context).size.width / 2 - 50,
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bottom: _selectedList.length == 0 ? -100 : 30,
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child: InkWell(
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onTap: () => _delSelectedEpisodes(),
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child: Stack(
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alignment: _clearing
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? Alignment.centerLeft
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: Alignment.centerRight,
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children: <Widget>[
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Container(
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alignment: Alignment.center,
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width: 100,
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height: 40,
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decoration: BoxDecoration(
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borderRadius:
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BorderRadius.all(Radius.circular(20.0)),
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color: Theme.of(context).accentColor,
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),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceEvenly,
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children: <Widget>[
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Icon(
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LineIcons.trash_alt_solid,
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color: Colors.white,
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),
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Text((sumSelected() ~/ 1000000).toString() + 'Mb',
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style: TextStyle(color: Colors.white)),
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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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child: AnimatedContainer(
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duration: Duration(milliseconds: 500),
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alignment: Alignment.center,
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width: _clearing ? 100 : 0,
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height: _clearing ? 40 : 0,
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decoration: BoxDecoration(
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borderRadius:
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BorderRadius.all(Radius.circular(20.0)),
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color: Colors.red.withOpacity(0.6),
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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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