如何使用 flutter_local_notifcations 插件取消 FCM 消息？

Question

我正在尝试确定是否可以从 iOS 和 Android 上的通知托盘中取消（清除）FCM 通知。

FCM RemoteMessage 随 RemoteNotificaiton class 一起到达，其中包含 AndroidNotification class。这个 class 只包含一个标签，而不是一个 ID。 AppleNotification 不包含标签或 ID。

flutter_local_notifcations 插件需要整数 ID，但 FCM 不在其通知中提供整数 ID。

是否可以仅在 flutter 代码中从系统托盘取消 FCM 通知？

Answer 1

可惜没有办法

这只能使用方法通道。

Answer 2

您可以使用 flutter_local_notifications -

实现相同的效果

@override
void didChangeAppLifecycleState(AppLifecycleState state) async {
  if (state == AppLifecycleState.resumed) {
    await flutterLocalNotificationsPlugin.cancelAll();
  }
}

如果您想清除单个 FCM 通知，您可以包装 Firebase 和 flutter_local_notifications -

Create a new AndroidNotificationChannel instance:

const AndroidNotificationChannel channel = AndroidNotificationChannel(
 'high_importance_channel', // id
 'High Importance Notifications', // title
 'This channel is used for important notifications.', // description
 importance: Importance.max,
);

Create the channel on the device (if a channel with an id already exists, it will be updated):

final FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
FlutterLocalNotificationsPlugin();

await flutterLocalNotificationsPlugin
 .resolvePlatformSpecificImplementation<AndroidFlutterLocalNotificationsPlugin>()
?.createNotificationChannel(channel);

Once created, we can now update FCM to use our own channel rather than the default FCM one. To do this, open the android/app/src/main/AndroidManifest.xml file for your FlutterProject project. Add the following meta-data schema within the application component:

<meta-data
android:name="com.google.firebase.messaging.default_notification_channel_id"
android:value="high_importance_channel" />

And then create local notification as -

    FirebaseMessaging.onMessage.listen((RemoteMessage message) {
  RemoteNotification notification = message.notification;
  AndroidNotification android = message.notification?.android;

  // If `onMessage` is triggered with a notification, construct our own
  // local notification to show to users using the created channel.
  if (notification != null && android != null) {
    flutterLocalNotificationsPlugin.show(
        notification.hashCode,
        notification.title,
        notification.body,
        NotificationDetails(
          android: AndroidNotificationDetails(
            channel.id, // Set your own Id!!
            channel.name,
            channel.description,
            icon: android?.smallIcon,
            // other properties...
          ),
        ));
  }
});

现在您有了 FCM 通知的 ID，因此您可以使用该 ID 取消单个 FCM 通知。

参考：- Firebase

希望对您有所帮助。

如何使用 flutter_local_notifcations 插件取消 FCM 消息？

How do I cancel and FCM message using flutter_local_notifcations plugin?

android

dart

flutter

firebase-cloud-messaging