【发布时间】：2021-12-25 09:53:33
【问题描述】：
我正在使用 Flutter 开发应用程序，并且正在使用 FCM 和 firebase_messaging: ^10.0.4 Flutter 插件实现推送通知：
当移动应用处于终止状态时，我正在使用 Firebase 在移动应用上发送通知。为了让通知处于终止状态，我使用FirebaseMessaging.instance.getInitialMessage() 来处理点击通知。当用户点击通知时，他们将被路由到特定屏幕（显示传递的消息）。
问题是我在终止状态的移动应用程序中收到通知，但是当我单击通知时，我没有被路由到我从 Firebase 传入的特定屏幕，FirebaseMessaging.instance.getInitialMessage() 值在消息中变为空.
如果有人对此有任何想法，请告诉我。
main.dart
checkFirebase() async {
await Firebase.initializeApp();
// Set the background messaging handler early on, as a named top-level function
FirebaseMessaging.onBackgroundMessage(_firebaseMessagingBackgroundHandler);
if (!kIsWeb) {
channel = const AndroidNotificationChannel(
'high_importance_channel', // id
'High Importance Notifications', // title
description: 'This channel is used for important notifications.',
// description
importance: Importance.max,
);
flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();
/// Create an Android Notification Channel.
///
/// We use this channel in the `AndroidManifest.xml` file to override the
/// default FCM channel to enable heads up notifications.
await flutterLocalNotificationsPlugin
.resolvePlatformSpecificImplementation<
AndroidFlutterLocalNotificationsPlugin>()
?.createNotificationChannel(channel);
/// Update the iOS foreground notification presentation options to allow
/// heads up notifications.showFrontNotification
await FirebaseMessaging.instance
.setForegroundNotificationPresentationOptions(
alert: true,
badge: true,
sound: true,
);
FirebaseCrashlytics.instance.setCrashlyticsCollectionEnabled(true);
}
}
class _ProcessAppState extends State<ProcessApp> {
Future<void> _initializeFuture;
Future<void> _initializeServices() async {
await Firebase.initializeApp();
await FirebaseCrashlytics.instance.setCrashlyticsCollectionEnabled(true);
var dir = await getApplicationDocumentsDirectory();
Hive.init(dir.path);
// pass all uncaught errors to crashlytics
Function originalOnError = FlutterError.onError;
FlutterError.onError = (FlutterErrorDetails errorDetails) async {
await FirebaseCrashlytics.instance.recordFlutterError(errorDetails);
originalOnError(errorDetails);
};
// Set the background messaging handler early on, as a named top-level function
FirebaseMessaging.onBackgroundMessage(_firebaseMessagingBackgroundHandler);
if (!kIsWeb) {
channel = const AndroidNotificationChannel(
'high_importance_channel', // id
'High Importance Notifications', // title
description: 'This channel is used for important notifications.',
// description
importance: Importance.max,
);
/*
flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();
/// Create an Android Notification Channel.
///
/// We use this channel in the `AndroidManifest.xml` file to override the
/// default FCM channel to enable heads up notifications.
await flutterLocalNotificationsPlugin
.resolvePlatformSpecificImplementation<
AndroidFlutterLocalNotificationsPlugin>()
?.createNotificationChannel(channel);
*/
/// Update the iOS foreground notification presentation options to allow
/// heads up notifications.
await FirebaseMessaging.instance
.setForegroundNotificationPresentationOptions(
alert: true,
badge: true,
sound: true,
);
}
}
@override
void initState() {
super.initState();
_initializeFuture = _initializeServices();
}
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
home: Scaffold(
body: FutureBuilder(
future: _initializeFuture,
builder: (context, snapshot) {
if (snapshot.hasError) {
reportError(
error: snapshot.error, stackTrace: snapshot.stackTrace);
return Center(
child: Text(context.translateText(key: "general_error")),
);
}
if (snapshot.connectionState == ConnectionState.done) {
return MyApp();
}
return progressBar();
},
),
),
);
}
}
@override
Widget build(BuildContext context) {
return AnnotatedRegion<SystemUiOverlayStyle>(
value: SystemUiOverlayStyle(
statusBarColor: gradientTopColor,
statusBarBrightness: Brightness.dark,
),
child: MaterialApp(
debugShowCheckedModeBanner: false,
theme: ThemeData(
primarySwatch: primaryColor,
backgroundColor: whiteColor,
fontFamily: 'Roboto'),
supportedLocales: [
Locale('en'),
Locale('ta'),
Locale('ml'),
Locale('kn'),
Locale('te'),
],
localizationsDelegates: [
// for our own localizations
AppLocalizations.delegate,
// localizations for all material widgets provided
GlobalMaterialLocalizations.delegate,
// localizations for all cupertino widgets provided
DefaultCupertinoLocalizations.delegate,
// for rtl, ltr text directions
GlobalWidgetsLocalizations.delegate,
],
locale: _locale,
localeResolutionCallback: (deviceLocale, supportedLocales) {
try {
return Locale(defaultLang);
} catch (e) {
print(e);
return Locale("en");
}
},
// navigation analytics reporting
// navigatorObservers: <NavigatorObserver>[observer],
home: NotificationMessageHandler(child: LauncherScreen()),
builder: EasyLoading.init(),
),
);
}
message_handler.dart
class _NotificationMessageHandlerState extends State<NotificationMessageHandler>
with AfterLayoutMixin<NotificationMessageHandler> {
@override
void initState() {
super.initState();
// _checkForUpdate();
var initializationSettingsAndroid =
AndroidInitializationSettings("@mipmap/ic_launcher");
var initializationSettings =
InitializationSettings(android: initializationSettingsAndroid);
flutterLocalNotificationsPlugin.initialize(initializationSettings,
onSelectNotification: (payload) async {
log("payload : $payload", name: "onSelectNotification");
handleNotificationClick(context, jsonDecode(payload));
});
FirebaseMessaging.instance
.getInitialMessage()
.then((RemoteMessage initialMessage) async {
log("message : $initialMessage", name: "getInitialMessage");
handleNotificationClick(context, jsonDecode(initialMessage.toString()));
});
FirebaseMessaging.onMessage.listen((RemoteMessage message) {
print(message);
showFrontNotification(message);
});
FirebaseMessaging.onMessageOpenedApp.listen((RemoteMessage message) {
handleNotificationClick(context, message.data);
});
}
@override
Widget build(BuildContext context) {
return widget.child;
}
}
【问题讨论】：
-
你能告诉我们你是如何实现它的代码吗？
-
我已经编辑了问题并发布了关于我如何实现它的代码。请检查。
标签： firebase flutter firebase-cloud-messaging