Android应用程序在前台不显示Azure通知中心通知



我有通知中心设置正确与FCM和我的Android应用程序。问题是,当我的应用程序在前台通知从未显示,但调试器捕获OnPushNotificationReceived,所以我知道设置正在工作。此外,当应用程序处于后台或未运行时,会弹出通知。我认为这与我从:https://learn.microsoft.com/en-us/azure/notification-hubs/xamarin-notification-hubs-push-notifications-android-gcm

下面是我的代码:
public void OnPushNotificationReceived(Context context, INotificationMessage message)
{
var intent = new Intent(context, typeof(MainActivity));
intent.AddFlags(ActivityFlags.ClearTop);
var pendingIntent = PendingIntent.GetActivity(context, 0, intent, PendingIntentFlags.OneShot);
var notificationBuilder = new NotificationCompat.Builder(context, MainActivity.CHANNEL_ID);
notificationBuilder.SetContentTitle(message.Title)
.SetSmallIcon(Resource.Drawable.ic_launcher)
.SetContentText(message.Body)
.SetAutoCancel(true)
.SetShowWhen(false)
.SetContentIntent(pendingIntent);
var notificationManager = NotificationManager.FromContext(context);
notificationManager.Notify(0, notificationBuilder.Build());
}

如有任何帮助,不胜感激

我发现这个问题是因为不存在NotificationChannel,所以我在构造函数中创建了它:

public AzureListener()
{
var channel = new NotificationChannel(MainActivity.CHANNEL_ID, "General", NotificationImportance.Default);
var notificationManager = NotificationManager.FromContext(Application.Context);
notificationManager.CreateNotificationChannel(channel);
}

在我添加了这个之后它就工作了。

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