iOS端Capacitor推送通知调用错误注册回调问题排查

我在Angular-Ionic应用的welcome-page.component.ts的ngOnInit中调用了如下代码：

if (Capacitor.platform !== "web") {
      this.registerPush();
}

registerPush方法实现如下：

private async registerPush() {
if (Capacitor.getPlatform() === "android") {
  let permStatus = await PushNotifications.checkPermissions();

  if (permStatus.receive === "prompt") {
    permStatus = await PushNotifications.requestPermissions();
  }

  if (permStatus.receive !== "granted") {
    throw new Error("User denied permissions!");
  }

  await PushNotifications.register();
} else if (Capacitor.getPlatform() === "ios") {
  PushNotifications.requestPermissions().then((result) => {
    if (result.receive === "granted") {
      PushNotifications.register();
    } else {
      console.error("User denied push notification permissions!");
    }
  });
}

PushNotifications.addListener("registration", async (token) => {
  console.log("My token: " + token.value);

  const user = await this.authService.getUserInSession();
  const decryptUser = Globals.decryptOjbectsInSession(user);

  this.authService
    .updateRegKey({
      cpf_cnpj: decryptUser.usuario.cpfcnpj,
      reg_key: token.value,
    })
    .subscribe((response: any) => {
      console.log("response: ", response);
    });
});

PushNotifications.addListener("registrationError", (error) => {
  console.log("Error on registration: " + JSON.stringify(error));
});

PushNotifications.addListener(
  "pushNotificationReceived",
  (notification) => {
    console.log("Push notification received: ", notification);
  }
);

PushNotifications.addListener(
  "pushNotificationActionPerformed",
  (notification) => {
    console.log(
      "Push notification action performed",
      notification.actionId,
      notification.inputValue
    );

    this.router.navigate([notification.notification.data.url]);
  }
);
}

该实现完全遵循官方文档，在Android模拟器和真机上均可正常工作，能获取设备Token并注册到PostgreSQL数据库，以便通过API发送通知。但在iOS模拟器上无法正常运行，出现回调不匹配的问题：我创建的registration回调标识为#11279332，而实际触发的是#11279336（Android端两者标识一致）。

我已完成以下配置步骤：

• 参考Capacitor和Ionic官方推送文档，安装@capacitor/push-notifications并执行npx cap sync；
• 创建Firebase项目，添加GoogleService-Info.plist到Xcode，将Apple AuthKey添加到Firebase；
• 在Podfile中添加pod 'Firebase/Messaging'，执行npx cap update ios；
• 在AppDelegate.swift中添加import Firebase、FirebaseApp.configure()及以下两个方法：

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
Messaging.messaging().apnsToken = deviceToken
Messaging.messaging().token(completion: { (token, error) in
if let error = error {
    NotificationCenter.default.post(name: .capacitorDidFailToRegisterForRemoteNotifications, object: error)
} else if let token = token {
    NotificationCenter.default.post(name: .capacitorDidRegisterForRemoteNotifications, object: token)
}
})
}

func application(_ application: UIApplication, 
didFailToRegisterForRemoteNotificationsWithError error: Error) {
NotificationCenter.default.post(name: 
.capacitorDidFailToRegisterForRemoteNotifications, object: error)
}

• 执行ionic build、npx cap copy，通过npx cap open ios打开项目；
• 创建包含推送通知权限的Apple配置文件并导入Xcode，在Xcode中启用推送通知能力。

我认为已完成所有必要步骤，请问哪里出现了问题？

内容的提问来源于stack exchange，提问作者Gabriel