Flutter - 当应用程序处于后台时调用 Firebase onMessage 方法

Question

问题与Call onMessage method when the app is in background in flutter 相同，我正在关注该主题，但由于没有回应，我再次问这个问题。

我已将我的 Flutter 应用程序与 Firebase Messaging 连接，当我的应用程序位于 前台 时，我使用 Flutter Local Notifications Plugin 收到通知。但是当我的应用处于后台

时，我无法收到任何通知

以下是我的代码：

// FIREBASE CONFIGURATION & HANDLING
_firebaseMessaging.configure(
  onMessage: (Map<String, dynamic> message) async {
    debugPrint("onMessage: $message");
    final notification = message['data']['notification'];

    Map responseBody = convert.jsonDecode(notification);

    _showNotification(
      icon: responseBody['icon'],
      title: responseBody['title'],
      body: responseBody['body'],
    );

    setState(() {});
  },
);


// DISPLAY NOTIFICATION - HEADS UP
Future<void> _showNotification({String icon, String title, String body}) async {
  var androidPlatformChannelSpecifics = AndroidNotificationDetails(
    'your channel id',
    'your channel name',
    'your channel description',
    importance: Importance.Max,
    priority: Priority.High,
    ticker: 'ticker',
  );

  var iOSPlatformChannelSpecifics = IOSNotificationDetails();

  var platformChannelSpecifics = NotificationDetails(
      androidPlatformChannelSpecifics, iOSPlatformChannelSpecifics);

  await flutterLocalNotificationsPlugin.show(
    0,
    title,
    body,
    platformChannelSpecifics,
  );
}

有人可以指导我如何在我的应用处于后台

时接收通知

Answer 1

已解决！！

问题在于 curl 调用的格式。按照here的说明进行

改变了这个：

{
  "data": {
    "notification": {
        "title": "Notification Title",
        "body": "Notification Body",
    },
        "click_action": "FLUTTER_NOTIFICATION_CLICK"
  },
  "to": "YOUR_DEVICE_TOKEN"
}

到这里：

{
  "data": {
    "click_action": "FLUTTER_NOTIFICATION_CLICK",
    "id": "1",
    "status": "done",
  },
  "notification": {
    "body": "Notification Body",
    "title": "Notification Title"
  },
  "priority": "high",
  "to": "YOUR_DEVICE_TOKEN"
}