我对颤振中的单信号有很大的疑问。我已经安装了所有程序，现在尝试在main.dart中初始化模块，但是根本没有任何作用，并且在启动应用程序时模拟器关闭了。 这是我的代码： 如您所见，我导入了onesignal模块，并且我有一个名为initPlatformState（）的异步函数，该函数会初始化onesignal。我认为其中一个错误是：
void main() async {
initPlatformState();
}
我认为我不能在void main异步中那样调用它，但是我不知道如何调用它。您认为onesignal需要在main.dart中初始化吗？因为在初始化时会在一个信号上创建用户。我只需要向所有成员发送通知，因此在我的应用程序上创建帐户的人也需要将onesignal存储在我的成员数据库中，以便我仅向在应用程序上赢了钱或钱的成员发送通知
import 'dart:ui';
import 'package:flutter/material.dart';
import 'login.dart';
import 'package:flutter_secure_storage/flutter_secure_storage.dart';
import 'package:http/http.dart' as http;
import 'dart:convert';
import 'dart:async';
import 'home.dart';
import 'globals.dart' as globals;
import 'package:awesome_page_transitions/awesome_page_transitions.dart';
import 'package:font_awesome_flutter/font_awesome_flutter.dart';
import 'package:onesignal_flutter/onesignal_flutter.dart';
void main() => runApp(MyApp());
class MyApp extends StatefulWidget {
@override
MyApp_State createState() {
return MyApp_State();
}
}
class MyApp_State extends State<MyApp> {
@override
final appTitle = 'GEM ISLAND';
String mail='';
String pass='';
Future<void> initPlatformState() async {
if (!mounted) return;
OneSignal.shared.setLogLevel(OSLogLevel.verbose, OSLogLevel.none);
var settings = {
OSiOSSettings.autoPrompt: false,
OSiOSSettings.promptBeforeOpeningPushUrl: true
};
// NOTE: Replace with your own app ID from https://www.onesignal.com
await OneSignal.shared
.init("6387f006-d4a7-42a8-ac8d-50e5a2b70fc9", iOSSettings: settings);
OneSignal.shared
.setInFocusDisplayType(OSNotificationDisplayType.notification);
}
void main() async {
initPlatformState();
}
Widget build(BuildContext context) {
return MaterialApp(
title: 'GEM ISLAND',
theme: ThemeData(
primarySwatch: Colors.blue,
inputDecorationTheme: const InputDecorationTheme(
labelStyle: TextStyle(color: Colors.white),
hintStyle: TextStyle(color: Colors.white),
),
fontFamily: 'PoetsenOne',
scaffoldBackgroundColor: const Color(0xFFEFEFEF)
),
home: Builder(
builder: (context) => Stack(
children: <Widget>[
Container(
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topLeft,
end: Alignment.bottomRight,
colors: <Color>[
Colors.blue[300],Colors.blue[400]
],
),
),
),
Scaffold(
appBar: new AppBar(
title: new Text("GEM ISLAND",style: TextStyle(fontFamily: 'Azonix')),
flexibleSpace: Container(
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topLeft,
end: Alignment.bottomRight,
colors: <Color>[
Colors.blue[400],Colors.blue[600],Colors.blue[800]
],
),
),
),
),
backgroundColor: Colors.transparent,
body:
Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Container(
margin : const EdgeInsets.only(bottom:20),
child: Icon(FontAwesomeIcons.solidGem,color: Colors.amber[200],size:70),
),
Container(
margin: const EdgeInsets.only(bottom:30),
child : Text("GEM ISLAND",style: TextStyle(color: Colors.white,fontSize: 30,fontWeight: FontWeight.w600,fontFamily: 'Azonix')),
),
Container(
margin : const EdgeInsets.only(bottom:30),
child: Text('JEU 100 % GRATUIT 100 % GAGNANT',style: TextStyle(color: Colors.white,fontSize: 15,fontWeight: FontWeight.w500)),
),
Container(
margin : const EdgeInsets.only(bottom:30),
child: Text("GAGNEZ JUSQU'A 1 000 000 € !!!",style: TextStyle(color: Colors.white,fontSize: 15,fontWeight: FontWeight.w500)),
),
RaisedButton(
textColor: Colors.white,
color: Colors.green,
child: Text('COMMENCER',style: TextStyle(color: Colors.white,fontSize: 15,fontWeight: FontWeight.w500)),
onPressed: () async {
bool islog = await isconnect();
if (islog==false) {
Navigator.push(
context,
AwesomePageRoute(
transitionDuration: Duration(milliseconds: 1000),
exitPage: widget,
enterPage: LoginPage(),
transition: RotateUpTransition(),
),
);
}
else {
Navigator.push(
context,
AwesomePageRoute(
transitionDuration: Duration(milliseconds: 1000),
exitPage: widget,
enterPage: HomePage(),
transition: RotateUpTransition(),
),
);
}
},
)
],
),
),
)
]
)
)
);
}
Future <bool> isconnect() async {
// Create storage
final storage = new FlutterSecureStorage();
// Read value
mail = await storage.read(key: "e");
pass = await storage.read(key: "p");
if (mail!=null && pass!=null) {
var url = 'https://www.easytrafic.fr/game_app/login.php';
// Store all data with Param Name.
var data = {'email': mail, 'password': pass};
// Starting Web API Call.
var response = await http.post(url, body: json.encode(data),headers: {'content-type': 'application/json','accept': 'application/json'});
print(json.decode(response.body));
// Getting Server response into variable.
Map <String,dynamic> map = json.decode(response.body);
// If the Response Message is Matched.
if (map["status"] == 1) {
// l'email et le mot de passe sont correct
final storage = new FlutterSecureStorage();
await storage.write(key: "i", value: map["id_membre"]);
await storage.write(key: "e", value: mail);
await storage.write(key: "p", value: pass);
await storage.write(key: "t", value: map["jwt"]);
globals.id_membre=map["id_membre"];
globals.token=map["jwt"];
globals.points=double.parse(map["gem"]);
globals.cash=double.parse(map["solde"]);
return true;
}
else {
// l'email et mot de passe stocké ne permettent pas de se connecter
// rediriger vers la fenêtre de login
return false;
}
}
else {
// email et password n'existe pas
return false;
}
}
}