我在 Flutter 应用程序中使用 firebase_messaging v9.0.1。在基于 https://pub.dev/packages/firebase_messaging/example 配置此库时,我能够在前台和后台状态下接收 Android 的通知。但同样的方法对于 iOS 来说是行不通的。我收到以下错误,
在检索发件人 ID '' 的 FCM 令牌之前未设置 APNS 设备令牌。对此 FCM 令牌的通知将不会通过 APNS 传递。设置 APNS 设备令牌后,请务必重新检索 FCM 令牌。
我的 iOS 设备已连接到互联网,并且运行时没有出现与网络相关的问题。
除了适用于 iOS 的 FirebaseMessaging.instance.getToken() 之外,我还想调用任何其他函数吗? 请帮忙。
谢谢。
我遇到了同样的问题,我再次一步步查看 Firebase 文档,并意识到调试和发布模式下缺少推送通知功能。
解决问题的步骤:
https://firebase.flutter.dev/docs/messaging/apple-integration
尝试在真实设备上运行
试试这个:
AppDelegate.swift
import UIKit
import Flutter
import Firebase
import FirebaseMessaging
import UserNotifications
@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
var firebaseToken : String = "";
override func application(
_ application: UIApplication,
didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
) -> Bool {
Messaging.messaging().delegate = self;
FirebaseApp.configure()
GeneratedPluginRegistrant.register(with: self)
Messaging.messaging().isAutoInitEnabled = true;
self.registerForFirebaseNotification(application: application);
return true;
// GeneratedPluginRegistrant.register(with: self)
}
override func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken : Data){
print("X__APNS: \(String(describing: deviceToken))")
Messaging.messaging().apnsToken = deviceToken;
//Messaging.messaging().setAPNSToken(deviceToken, type:MessagingAPNSTokenType.prod )
}
override func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
print("X_ERR",error);
}
func registerForFirebaseNotification(application : UIApplication){
// Messaging.messaging().delegate = self;
if #available(iOS 10.0, *) {
//UNUserNotificationCenter.current().delegate = self ;
let authOpt : UNAuthorizationOptions = [.alert, .badge, .sound];
UNUserNotificationCenter.current().requestAuthorization(options: authOpt, completionHandler: {_, _ in})
UNUserNotificationCenter.current().delegate = self ;
}else{
let settings : UIUserNotificationSettings = UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
application.registerUserNotificationSettings(settings);
}
application.registerForRemoteNotifications();
}
}
extension AppDelegate : MessagingDelegate{
func messaging(_messagin : Messaging, didRecieveRegistrationToken fcmToken : String){
self.firebaseToken = fcmToken;
print("X__FCM: \(String(describing: fcmToken))")
}
func messaging(_messagin : Messaging, didRecieve remoteMessage : Any){
//self.firebaseToken = fcmToken;
print("REMOTE__MSG: \(remoteMessage)")
}
func application(_ application : UIApplication,didRecieveRemoteNotification uinfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void){
print("WITH__APN: \(uinfo)")
}
}
podfile
target 'Runner' do
use_frameworks!
use_modular_headers!
# pod 'FirebaseFirestore', :git => 'https://github.com/invertase/firestore-ios-sdk-frameworks.git', :tag => '7.11.0'
pod 'Firebase/Auth'
pod 'Firebase/Analytics'
pod 'FBSDKLoginKit'
pod 'Firebase/Messaging'
flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
end
pubspec.yaml
cloud_firestore: ^2.0.0
firebase_auth: ^1.1.2
firebase_core: ^1.1.0
firebase_messaging: ^9.1.3
flutter_local_notifications: ^5.0.0+3
也回答了这里
我解决这个问题的方法是,我不是通过调试模式运行应用程序,而是存档应用程序并通过临时下载它,这以某种方式解决了问题
我也收到了此错误,但就我而言,我在 Firebase 中设置了 APN 证书而不是 APN 密钥。我必须更新 Firebase 中已过期的 APN 证书。这解决了错误,我可以在我的应用程序中使用 .getToken() 获取令牌。
更新:在 Firebase > 项目设置 > 云消息传递中,我为我的 flutter iOS 应用程序上传了 APNs 身份验证密钥。我没有上传任何 APNs 证书。请按照此处的指南了解如何创建和上传 APN 身份验证密钥:https://firebase.flutter.dev/docs/messaging/apple-integration/
然后在我的 flutter 项目中我用它来获取 FCM 令牌
import 'dart:io';
import 'package:firebase_messaging/firebase_messaging.dart';
Future<String?> getFirebaseToken() async {
String? fcmToken;
if (Platform.isIOS) {
// On iOS we need to see an APN token is available first
String? apnsToken = await FirebaseMessaging.instance.getAPNSToken();
if (apnsToken != null) {
fcmToken = await FirebaseMessaging.instance.getToken();
}
else {
// add a delay and retry getting APN token
await Future<void>.delayed(const Duration(seconds: 3,));
apnsToken = await FirebaseMessaging.instance.getAPNSToken();
if (apnsToken != null) {
fcmToken = await FirebaseMessaging.instance.getToken();
}
}
}
else {
// android platform
fcmToken = await FirebaseMessaging.instance.getToken();
}
return fcmToken;
}
在我的 main.dart 中,我像这样初始化 firebase
await Firebase.initializeApp(
options: DefaultFirebaseOptions.currentPlatform,
);
FirebaseMessaging.instance.onTokenRefresh.listen((String token) {
String? fcmToken = await getFirebaseToken();
// save token to storage or server-side depending where you want
// to send push notification
})