freezer/lib/main.dart

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Dart
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import 'package:custom_navigator/custom_navigator.dart';
import 'package:audio_service/audio_service.dart';
import 'package:flutter/material.dart';
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import 'package:flutter/rendering.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:move_to_background/move_to_background.dart';
import 'ui/player_bar.dart';
import 'api/deezer.dart';
import 'settings.dart';
import 'ui/cached_image.dart';
import 'api/download.dart';
import 'api/player.dart';
import 'ui/home_screen.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 {
WidgetsFlutterBinding.ensureInitialized();
//Initialize globals
settings = await Settings().loadSettings();
await imagesDatabase.init();
await downloadManager.init();
runApp(FreezerApp());
}
class FreezerApp extends StatefulWidget {
@override
_FreezerAppState createState() => _FreezerAppState();
}
class _FreezerAppState extends State<FreezerApp> {
@override
void initState() {
//Make update theme global
updateTheme = _updateTheme;
//Precache placeholder
precacheImage(imagesDatabase.placeholderThumb, context);
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super.initState();
}
void _updateTheme() {
setState(() {
settings.themeData;
});
}
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'freezer',
theme: settings.themeData,
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: LoginMainWrapper(),
),
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) {
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(() => {}),);
return MainScreen();
}
}
class MainScreen extends StatefulWidget {
@override
_MainScreenState createState() => _MainScreenState();
}
class _MainScreenState extends State<MainScreen> {
List<Widget> _screens = [
HomeScreen(),
SearchScreen(),
LibraryScreen()
];
int _selected = 0;
@override
void initState() {
navigatorKey = GlobalKey<NavigatorState>();
super.initState();
}
@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()) {
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')
),
BottomNavigationBarItem(
icon: Icon(Icons.search),
title: Text('Search'),
),
BottomNavigationBarItem(
icon: Icon(Icons.library_music),
title: Text('Library')
)
],
)
],
),
body: AudioServiceWidget(
child: CustomNavigator(
navigatorKey: navigatorKey,
home: _screens[_selected],
pageRoute: PageRoutes.materialPageRoute,
),
)
);
}
}