title: Flutter Firebase backgroud push notification not showing in notification tray in IOS
body: <p>i am new to flutter and i have implemented push notification (silent message) to the project .
  i am successfully getting push notification on android device
  --&gt; i am able to log the message
  --&gt; same message is display as push notification</p>
  <p>but in IOS i am not getting push notification though i am able to log the notification
  --&gt; i am able to log the message
  --&gt; no push notification</p>
  <p>please let me know what i am missing or where is the issue .</p>
  <p>Below code execute for both device but only android shows push</p>
  <p>CODE  :</p>
  <pre><code>    Future&lt;void&gt; _messageHandler(RemoteMessage message) async {
    print('background message ${message.data['locale']}');
    FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
        new FlutterLocalNotificationsPlugin();
    final String locale = message.data['locale'];
    final String title =
        locale == &quot;ar&quot; ? message.data['title'] : message.data['en_title'];
    final String body =
        locale == &quot;ar&quot; ? message.data['message'] : message.data['en_message'];
    //getting log in both case IOS and ANDROID .  but only android show the push
    print([locale, title, body]);
    //init
    var initializationSettingsAndroid = AndroidInitializationSettings('splash');
    var initializationSettingsIos = IOSInitializationSettings();
    var initializationSettings = InitializationSettings(
        android: initializationSettingsAndroid, iOS: initializationSettingsIos);
    flutterLocalNotificationsPlugin.initialize(initializationSettings);
  
    //notification
    var android = new AndroidNotificationDetails(
      '111111111111',
      'New Trips Notification',
    );
    var iOS = new IOSNotificationDetails();
  
    var platform = new NotificationDetails(android: android, iOS: iOS);
  
    await flutterLocalNotificationsPlugin.show(
      int.parse(message.data['id'].toString()),
      title,
      body,
      platform,
      //payload: 'test notification',
    );
  }
  </code></pre>