在设备上收到时丢弃推送通知

Question

我正在使用 OneSignal 向 iOS 和 Android 设备发送推送通知。在 iOS 和 Android 设备上收到推送通知时是否可以丢弃它？这不是全部，而是一些基于有效负载数据以及用户是否在后台或前台拥有设备。

更新：

“丢弃”意味着它永远不会显示为通知。

如果我不想打扰用户更新，如果他们已经在前台使用他们的应用程序，但我想在后台显示通知，我有什么选择？

Answer 1

在 OneSignal 中，您想使用 setNotificationWillShowInForegroundHandler 方法来决定是否需要向用户显示通知。

For Android

OneSignal.setNotificationWillShowInForegroundHandler(new NotificationWillShowInForegroundHandler() {
   @Override
   void notificationWillShowInForeground(OSNotificationReceivedEvent notificationReceivedEvent) {
     OSNotification notification = notificationReceivedEvent.getNotification();
     // Get custom additional data you sent with the notification
     JSONObject data = notification.getAdditionalData();

     if (/* some condition */ ) {
        // Complete with a notification means it will show
        notificationReceivedEvent.complete(notification);
     }
     else {
       // Complete with null means don't show a notification
       notificationReceivedEvent.complete(null);
    }
  }
});

For IOS

let notificationWillShowInForegroundBlock: OSNotificationWillShowInForegroundBlock = { notification, completion in
  print("Received Notification: ", notification.notificationId ?? "no id")
  print("launchURL: ", notification.launchURL ?? "no launch url")
  print("content_available = \(notification.contentAvailable)")

  if notification.notificationId == "example_silent_notif" {
    // Complete with null means don't show a notification  
    completion(nil)
  } else {
    // Complete with a notification means it will show
    completion(notification)
  }
}
OneSignal.setNotificationWillShowInForegroundHandler(notificationWillShowInForegroundBlock)

注意：更多信息，您可以查看文档。

https://documentation.onesignal.com/docs/sdk-notification-event-handlers#foreground-notification-received-event

在设备上收到时丢弃推送通知

Discard a push notification when received on device

android

ios

push-notification

onesignal