freezer/lib/main.dart

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import 'dart:async';
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import 'package:audio_service/audio_service.dart';
import 'package:custom_navigator/custom_navigator.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/rendering.dart';
import 'package:flutter/services.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
import 'package:freezer/api/cache.dart';
import 'package:freezer/api/definitions.dart';
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import 'package:freezer/ui/library.dart';
import 'package:freezer/ui/login_screen.dart';
import 'package:freezer/ui/search.dart';
import 'package:i18n_extension/i18n_widget.dart';
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import 'package:move_to_background/move_to_background.dart';
import 'package:freezer/translations.i18n.dart';
import 'package:quick_actions/quick_actions.dart';
import 'package:uni_links/uni_links.dart';
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import 'api/deezer.dart';
import 'api/download.dart';
import 'api/player.dart';
import 'settings.dart';
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import 'ui/home_screen.dart';
import 'ui/player_bar.dart';
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Function updateTheme;
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Function logOut;
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GlobalKey<NavigatorState> mainNavigatorKey = GlobalKey<NavigatorState>();
GlobalKey<NavigatorState> navigatorKey;
void main() async {
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WidgetsFlutterBinding.ensureInitialized();
//Initialize globals
settings = await Settings().loadSettings();
await downloadManager.init();
cache = await Cache.load();
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runApp(FreezerApp());
}
class FreezerApp extends StatefulWidget {
@override
_FreezerAppState createState() => _FreezerAppState();
}
class _FreezerAppState extends State<FreezerApp> {
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@override
void initState() {
//Make update theme global
updateTheme = _updateTheme;
_updateTheme();
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super.initState();
}
@override
void dispose() {
super.dispose();
}
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void _updateTheme() {
setState(() {
settings.themeData;
});
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
systemNavigationBarColor: settings.themeData.bottomAppBarColor,
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systemNavigationBarIconBrightness: settings.isDark? Brightness.light : Brightness.dark
));
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}
Locale _locale() {
if (settings.language == null || settings.language.split('_').length < 2) return null;
return Locale(settings.language.split('_')[0], settings.language.split('_')[1]);
}
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@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Freezer',
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theme: settings.themeData,
localizationsDelegates: [
GlobalMaterialLocalizations.delegate,
GlobalWidgetsLocalizations.delegate,
GlobalCupertinoLocalizations.delegate,
],
supportedLocales: supportedLocales,
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home: WillPopScope(
onWillPop: () async {
//For some reason AudioServiceWidget caused the app to freeze after 2 back button presses. "fix"
if (navigatorKey.currentState.canPop()) {
await navigatorKey.currentState.maybePop();
return false;
}
await MoveToBackground.moveTaskToBack();
return false;
},
child: I18n(
initialLocale: _locale(),
child: LoginMainWrapper(),
),
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),
navigatorKey: mainNavigatorKey,
);
}
}
//Wrapper for login and main screen.
class LoginMainWrapper extends StatefulWidget {
@override
_LoginMainWrapperState createState() => _LoginMainWrapperState();
}
class _LoginMainWrapperState extends State<LoginMainWrapper> {
@override
void initState() {
if (settings.arl != null) {
playerHelper.start();
//Load token on background
deezerAPI.arl = settings.arl;
settings.offlineMode = true;
deezerAPI.authorize().then((b) async {
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if (b) setState(() => settings.offlineMode = false);
});
}
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//Global logOut function
logOut = _logOut;
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super.initState();
}
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Future _logOut() async {
setState(() {
settings.arl = null;
settings.offlineMode = true;
deezerAPI = new DeezerAPI();
});
await settings.save();
}
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@override
Widget build(BuildContext context) {
if (settings.arl == null)
return LoginWidget(
callback: () => setState(() => {}),
);
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return MainScreen();
}
}
class MainScreen extends StatefulWidget {
@override
_MainScreenState createState() => _MainScreenState();
}
class _MainScreenState extends State<MainScreen> with SingleTickerProviderStateMixin{
List<Widget> _screens = [HomeScreen(), SearchScreen(), LibraryScreen()];
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int _selected = 0;
StreamSubscription _urlLinkStream;
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@override
void initState() {
navigatorKey = GlobalKey<NavigatorState>();
//Start with parameters
_setupUniLinks();
_loadPreloadInfo();
_prepareQuickActions();
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super.initState();
}
void _prepareQuickActions() {
final QuickActions quickActions = QuickActions();
quickActions.initialize((type) {
if (type != null)
_startPreload(type);
});
//Actions
quickActions.setShortcutItems([
ShortcutItem(type: 'favorites', localizedTitle: 'Favorites'.i18n, icon: 'ic_favorites'),
ShortcutItem(type: 'flow', localizedTitle: 'Flow'.i18n, icon: 'ic_flow'),
]);
}
void _startPreload(String type) async {
await deezerAPI.authorize();
if (type == 'flow') {
await playerHelper.playFromSmartTrackList(SmartTrackList(id: 'flow'));
return;
}
if (type == 'favorites') {
Playlist p = await deezerAPI.fullPlaylist(deezerAPI.favoritesPlaylistId);
playerHelper.playFromPlaylist(p, p.tracks[0].id);
}
}
void _loadPreloadInfo() async {
String info = await DownloadManager.platform.invokeMethod('getPreloadInfo');
if (info != null) {
//Used if started from android auto
await deezerAPI.authorize();
_startPreload(info);
}
}
@override
void dispose() {
if (_urlLinkStream != null)
_urlLinkStream.cancel();
super.dispose();
}
void _setupUniLinks() async {
//Listen to URLs
_urlLinkStream = getUriLinksStream().listen((Uri uri) {
openScreenByURL(context, uri.toString());
}, onError: (err) {});
//Get initial link on cold start
try {
String link = await getInitialLink();
if (link != null && link.length > 4)
openScreenByURL(context, link);
} catch (e) {}
}
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@override
Widget build(BuildContext context) {
return Scaffold(
bottomNavigationBar: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
PlayerBar(),
BottomNavigationBar(
backgroundColor: Theme.of(context).bottomAppBarColor,
currentIndex: _selected,
onTap: (int s) async {
//Pop all routes until home screen
while (navigatorKey.currentState.canPop()) {
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await navigatorKey.currentState.maybePop();
}
await navigatorKey.currentState.maybePop();
setState(() {
_selected = s;
});
},
selectedItemColor: Theme.of(context).primaryColor,
items: <BottomNavigationBarItem>[
BottomNavigationBarItem(
icon: Icon(Icons.home), title: Text('Home'.i18n)),
BottomNavigationBarItem(
icon: Icon(Icons.search),
title: Text('Search'.i18n),
),
BottomNavigationBarItem(
icon: Icon(Icons.library_music), title: Text('Library'.i18n))
],
)
],
),
body: AudioServiceWidget(
child: CustomNavigator(
navigatorKey: navigatorKey,
home: _screens[_selected],
pageRoute: PageRoutes.materialPageRoute,
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),
));
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}
}