Flutter Firebase消息传递 - iOS无声通知不在背景下启动应用程序以通过背景服务处理通知

Question

在扑动日志中，将无线通知发送到设备时，下面的日志将出现在取消推动启动事件的情况下，以防止在后台启动应用程序以处理FCM背景服务中的通知。

Dispatching low priority message: <xpc object>

<private> Delivering message from apsd: <private> 1020306858 <private>

<private> responding with an ack for message with guid <private>

<private> making delegate (<private>) calls to deliver message 1020306858 <private> for topic <private>

<private> calling <private> connection:didReceiveIncomingMessage:

<private> returned from <private> connection:didReceiveIncomingMessage:

Received incoming message on topic network.talker.app.dev at priority 1

Looking up connection on peer: 11431c0   found <private>

<private> informed that <private> acknowledges incoming message with guid <private>

<private> Removing incoming message with guid <private>

<private> _schedulePendingWorkUpdate

APSMessageStore - APSIncomingMessageRecordDeleteMessageForGUID <private>

Received remote notification request F1E6-BBE1 [ hasAlertContent: 0, hasSound: 0 hasBadge: 0 hasContentAvailable: 1 hasMutableContent: 0 ]

Deliver push notification F1E6-BBE1

Request DUET delivers content-available push notification to application

SUBMITTING: <private>

Not delivering user visible notification F1E6-BBE1 because it has no alert, sound or badge

Not delivering user visible push notification F1E6-BBE1 [ error=Error Domain=UNErrorDomain Code=1401 "Notification has no user visible content" UserInfo={NSLocalizedDescription=Notification has no user visible content} ]

Submitted Activity: com.apple.pushLaunch.{{bundle id}} at priority 5 <private>

Push not allowed for <private>

Daemon Canceling Activities: {(

   com.apple.pushLaunch.{{bundle id}}

)}

CANCELED: com.apple.pushLaunch.{{bundle id}} at priority 5 <private>!

在main.dart中，在主函数initializeFireBase函数中是 称为。

Future initializeFirebase() async {
  await Firebase.initializeApp();

  NotificationSettings settings = await 
     FirebaseMessaging.instance.requestPermission(
  announcement: true,
  carPlay: true,
  criticalAlert: true,
);
  FirebaseMessaging.onBackgroundMessage(
    _onAppInTerminatedNotificationHandler, // This Callback must be static
  );

  FlutterError.onError = FirebaseCrashlytics.instance.recordFlutterError;
  FirebaseCrashlytics.instance.setCrashlyticsCollectionEnabled(true);
}

Future<void> _onAppInTerminatedNotificationHandler(
  RemoteMessage message,
) async {
  await Firebase.initializeApp();

  print('A new terminated Push Notification Received');
  await NotificationManager.instance.showLocalNotification(message);
}

我的AppDelegate文件

import UIKit
import Flutter
import FirebaseMessaging

@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
  override func application(
    _ application: UIApplication,
    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
  ) -> Bool {
    if #available(iOS 10.0, *) {
      UNUserNotificationCenter.current().delegate = self as? UNUserNotificationCenterDelegate
    }

    GeneratedPluginRegistrant.register(with: self)
    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
  }

  override func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
   Messaging.messaging().apnsToken = deviceToken
   super.application(application, didRegisterForRemoteNotificationsWithDeviceToken: deviceToken)
 }
}

Answer 1

您是否包括这样的iOS许可请求

NotificationSettings settings =
    await FirebaseMessaging.instance.requestPermission(
  announcement: true,
  carPlay: true,
  criticalAlert: true,
);