Flutter 使用 FCM 的推送通知在 iOS 上不起作用

Question

幾周以來，我一直在嘗試讓推送通知在 iOS 上正常工作，但無濟於事。 我已經梳理了文檔以驗證我的配置。 然而，推送通知對於 Android 工作正常。

我還測試了直接從 firebase 消息控制台向 IOS 發送消息，但仍然不成功。 我還嘗試了之前堆棧溢出帖子中的許多建議，但均未成功。

Flutter IOS FCM 推送通知未進入通知欄

Flutter 推送通知未顯示在 IOS 上

https://github.com/FirebaseExtended/flutterfire/issues/1677

iOS FirebaseCloudMessaging 通知在調試/試飛和發布中不起作用

我在 iOS 14.6 上使用物理 iPhone 12。 我正在使用的 Xcode 的版本是 12.5。 Xcode 配置如下。

簽名和能力

簽約

應用程序委托文件的代碼

import UIKit
import Flutter
import Firebase
import FirebaseMessaging
@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
  override func application(
    _ application: UIApplication,
    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
  ) -> Bool {
    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)
 }
}

如何請求推送通知的代碼

Future<void> notficationsPermission () async {
  FirebaseMessaging messaging = FirebaseMessaging.instance;

NotificationSettings settings = await messaging.requestPermission(
  alert: true,
  announcement: true,
  badge: true,
  carPlay: false,
  criticalAlert: true,
  provisional: false,
  sound: true,
);


print('User granted permission: ${settings.authorizationStatus}');


String uid = Pref.getString(Keys.USER_ID);
var databaseReference = FirebaseDatabase.instance.reference();
if(settings.authorizationStatus == AuthorizationStatus.authorized){
  notficationStatus = true; 
 await FirebaseMessaging.instance.setForegroundNotificationPresentationOptions(
   
  alert: true, // Required to display a heads up notification
  badge: true,
  sound: true,
);
}

else{
  notficationStatus = false;  
}
}
}

如何配置通知的片段

return admin.messaging().sendToTopic(
                            topicName, {
                              android: {
                                priority: "high",
                              },
                              // Add APNS (Apple) config
                              apns: {
                                payload: {
                                  aps: {
                                    contentAvailable: true,
                                  },
                                },
                                headers: {
                                  "apns-push-type": "background",
                                  "apns-priority": "5", // Must be `5` when `contentAvailable` is set to true.
                                  "apns-topic": "io.flutter.plugins.firebase.messaging", // bundle identifier
                                },
                              },
                              notification: {
                                title: snapshot2.val().group_name +
                                  ": new chat message",
                                body: name +":"+snapshot.val().message,
                                clickAction: "FLUTTER_NOTIFICATION_CLICK",
                              },
                            });

我的 Info.plist 中也有以下內容。

<key>FirebaseAppDelegateProxyEnabled</key>
    <string>0</string>

Answer 1

我終於想通了，但忘了發布答案。 在我的 index.js 中

exports.chatNotfi = functions.database.ref("messages/{gId}/{chat}")
.onCreate((snapshot, context)=>{
  const groupId = context.params.gId;
  console.log("Group id:" + groupId);
  const topicName = groupId + "chat";
  console.log("topic name"+topicName);
  const userId = snapshot.val().userId;
  return admin.database().ref("groups/"+groupId+ "/").once("value").
      then((snapshot2)=>{
       
                    return admin.messaging().sendToTopic(
                        topicName, {
                          notification: {
                            title:
                              ": New chat message",
                            body: name +":"+snapshot.val().message,
                            clickAction: "FLUTTER_NOTIFICATION_CLICK",
                          },
                        });
});

在我的 AppDelegate.swift

import UIKit
import Flutter
import Firebase
import FirebaseMessaging

@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
  override func application(
    _ application: UIApplication,
    didFinishLaunchingWithOptions launchOptions: 
 [UIApplication.LaunchOptionsKey: Any]?
  ) -> Bool {
    FirebaseApp.configure()
    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)
 }
}

在我的 Info.plist

    <key>FirebaseAppDelegateProxyEnabled</key>
<string>NO</string>
<key>UIBackgroundModes</key>
<array>
    <string>fetch</string>
    <string>remote-notification</string>
</array>

還要確保在 firebase 控制台中注冊的應用程序與 Xcode 中使用的包標識符匹配。