Description - Uptil iOS 9, following method gets called
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler
But from iOS 10, apple provide new framework i.e userNotification.framework
and new methods to handle i.e
// The method will be called on the delegate only if the application is in the foreground. If the method is not implemented or the handler is not called in a timely manner then the notification will not be presented. The application can choose to have the notification presented as a sound, badge, alert and/or in the notification list. This decision should be based on whether the information in the notification is otherwise visible to the user.
- (void)userNotificationCenter:(UNUserNotificationCenter *)center
willPresentNotification:(UNNotification *)notification
withCompletionHandler:(void (^)(UNNotificationPresentationOptions))completionHandler
and
// The method will be called on the delegate when the user responded to the notification by opening the application, dismissing the notification or choosing a UNNotificationAction. The delegate must be set before the application returns from applicationDidFinishLaunching:.
- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)())completionHandler
But Now I am not able to get the notification call back when app is in background and user not clicked on notification.
What I want is when user is in background and if he received any notification then in which method I will get the call back of received notification.
Thanks in advance.
In iOS10, willPresent will be called when app is running foreground. didReceive will be called when user tap the notification while app is running background.
If you want handle notifications when app is running background, you still need to implement didReceiveRemoteNotification...fetchCompletionHandler, and don't forget to add "content-available" to your notification payload. Set it to 1.
Related
I have a Flutter application using the firebase-messaging plugin for push notifications.
I register firebase like normal on the client, and I send the fcmToken to the server.
Notifications are created via a python server using aiofcm (which uses firebase's XMPP api). They're created like this:
message = aiofcm.Message(
device_token = t2,
notification = {
"title":notification_title,
"body":notification_body,
"sound":"default",
"tag":link
},
data = {
"click_action": "FLUTTER_NOTIFICATION_CLICK"
},
priority=aiofcm.PRIORITY_HIGH
)
await fcm.send_message(message)
On iOS, notifications pop-up at the top of the screen.
On Android, only the icon shows up in the notification tray - not any of the notification content. This is tested on a Pixel 3 and a OnePlus 6, both running Android P.
Ideally, I would like the notification to be "heads-up" style like this:
Before I was able to accomplish this using data messages and creating the notification programmatically in native android, however I would like to avoid that if possible since data messages don't get delivered on Android if the app is terminated.
To Get heads-up - Notification - Kindly set "alert: true"
Example :
notification = {
"title":notification_title,
"body":notification_body,
"sound":"default",
"alert" : true
"tag":link
},
For heads up notification you will need to use flutter_local_notifications Plugin. It is even recommended in FlutterFire official documentation for notification to show notification in foreground (background notification also supported ofcourse!) and it shows heads up notification by default.
You should check out the firebase.flutter.dev docs it shows how to do this easily with the help of flutter_local_notifiation
you can use background fetch and local notification package for background app running.
With the help of a button, the user can receive notifications of a characteristic. The following code will be executed:
connection.setupNotification(setDescriptorEnableNotification(tmpCharacterostoc, connection))
.flatMap(notificationObservable -> notificationObservable)
.observeOn(Schedulers.io())
.subscribeOn(Schedulers.io())
.subscribe(bytes ->
//data processing
);
If the user clicks on the button again, the notification should be unsubscribed, so that no notifications are received.
How can i do this?
I have tried to set the value of the Descriptor to BluetoothGattDescriptor. DISABLE_NOTIFICATION_VALUE but it doesn't work.
The subscribe method returns a Subscription, hold its instance and when you’re no longer interested in notification just call ‘unsubscribe’ on it.
The library will disable notifications for you.
I'm developing an app in Windows Phone 8.1 (NOT silverlight) which uses WNS to receive raw push notification.
While I run my app through Visual Studio (over a physical device, not in the emulator), I always receive push notifications (with the app in foreground, in background, with the phone locked...) so I think my code to receive push is correct.
My issue is when I run my app whithout using Visual Studio. If I press the "app icon" on the device to init the app and keep it in foreground, I receive push notifications. But if I go to the phone menu, or lock the device (without killing the app), I don't receive push notifications, but the server says that WNS has been sent successfully. If I put the app again into foreground, I receive push notifications again...
So, summarizing: Init app through Visual Studio, I receive always the WNS notifications. Init app through device, only receive WNS with the app in foreground. The server always send the WNS successfully.
Here is my code to receive WNS:
public static void OnPushNotificationReceived(PushNotificationChannel channel, PushNotificationReceivedEventArgs e)
{
Debug.WriteLine("Received WNS notification");
string notificationContent = String.Empty;
switch (e.NotificationType)
{
case PushNotificationType.Badge:
Debug.WriteLine("Badge notifications not allowed");
return;
case PushNotificationType.Tile:
Debug.WriteLine("Tile notifications not allowed");
return;
case PushNotificationType.Toast:
Debug.WriteLine("Toast notifications not allowed");
return;
case PushNotificationType.Raw:
notificationContent = e.RawNotification.Content;
break;
}
processWnsNotification(notificationContent);
}
//Show local toast notification
private static void processWnsNotification(string notification)
{
ToastTemplateType toastTemplateXml = ToastTemplateType.ToastText01;
XmlDocument toastXml = ToastNotificationManager.GetTemplateContent(toastTemplateXml);
XmlNodeList toastTextElements = toastXml.GetElementsByTagName("text");
toastTextElements[0].AppendChild(toastXml.CreateTextNode("New message"));
ToastNotification toast = new ToastNotification(toastXml);
if(toastNotifier == null)
{
toastNotifier = ToastNotificationManager.CreateToastNotifier();
}
toastNotifier.Show(toast);
}
Anyone know what happens or what I'm doing wrong?
I think it could be a configuration issue... but I've been digging into property and config files without success.
Thanks a lot!!
Jorge.
This is the expected behavior and is very well documented, that your app will receive raw push notifications only when it is not suspended or when a background task is registered which can handle raw notifications.
You receive them when Visual Studio is open because when the debugger is attached the app does not suspend. To debug the suspension of an app, go to View->Toolbars and enable the Debug Location toolbar, then start your app, and select the Suspend option from the Lifecycle Events box. You will notice that your code does not execute (test with breakpoint).
The notification may be sent by your server, but will not be received by your phone. You probably don't check the responses of your push requests, but there should be some indication that the client is not available or something similar (a status code that states that maybe).
I have searched the web on my question but did not find anyone answering it. This looks weird as I am sure other people face similar issue.
At the moment my app is receiving push notification fine. I have a chat module where user can speak and whenever a new message is being sent, the other phone receive a push notification to update the chat.
You could say no issue there, but the problem is when the user is out of the application: he is still receiving those notifications showing a banner on the screen, and I want to dis-activate this. Basically I want push notification without alerts to the user. Is there a way to do that?
Thanks
Just leave the sound property of your push notification payload empty, omit the alert/text property and add "content-available":1 and your notification will be silent. This is often referred to as silent push notification or "push-to-sync".
See documentation here:
For a push notification to trigger a download operation, the
notification’s payload must include the content-available key with its
value set to 1. When that key is present, the system wakes the app in
the background (or launches it into the background) and calls the app
delegate’s
application:didReceiveRemoteNotification:fetchCompletionHandler:
method. Your implementation of that method should download the
relevant content and integrate it into your app
So your payload should least look like this:
{
"aps" : {
"content-available" : 1,
"sound" : ""
},
"chat-message" : "Hello World!"
}
I have tested to send push notifications with cordova-1.8.1.js and the push plugin together with pushwoosh.com and it work as it should.
I followed this tutorial: http://www.pushwoosh.com/programming-push-notification/push-notification-sdk-integration-for-phonegap/
The push notification is send to my iPhone and it plays the sound and shows the notification when the phone and app is closed, good!
But if I open the phone when the notification is visible then the app is opened as it should...but
the alert that is displayed is saying:
Alert
"push-notification","{\aps\":\sound\":\"default\",\"alert\":\" and then the message....\"}}”
So what is wrong, it should only write the message in the alert and not the rest?
Also if I delete the app with home button and start it again I get another alert saying "registerDevice", "type":"7".....and so on.
2. How can I make this go away?
Any input appeciated, thanks!
Problem solved. Use this and it will only show the message in the alert and nothing else.
document.addEventListener('push-notification', function(event) {
//console.warn('push-notification!: ' + event.notification);
//navigator.notification.alert(JSON.stringify(['push-notification1!', event.notification]));
var notification = JSON.parse(event.notification);
navigator.notification.alert(notification.aps.alert);
//pushNotification.setApplicationIconBadgeNumber(0);
pushNotification.setApplicationIconBadgeNumber(0);
});