I am attempting to create an app that sends notifications to user while it is not the current app or open in the recent apps. I can create an application that sends notifications when the app is open, but cannot keep it going when the app is not the current app. I have attempted to use services but to no success. Any help is great.
I am testing my program on Samsung Galaxy A 50, running Android 9 Pie. I wish for my application to send notifications at a repeating time using AlarmManager. I am trying to use the service class to allow for notifications to be sent to the user while the app is closed
it seems you are receiving notifications while your app is in foreground but not in background or killed state.
Here is a quick suggestion, Instead of sending notification with "notification" keyword try to change this to "data"
Example:
{
"to": "device token"
"notification":{
"title":"Title",
"body":"Body"
},
"priority":123
}
Change to this:
{
"to": "device token"
"data":{
"title":"Title",
"body":"Body"
},
"priority":123
}
onMessageReceived is provided for most message types, with the following exceptions:
Notification messages delivered when your app is in the background. In this case, the notification is delivered to the device’s system tray. A user tap on a notification opens the app launcher by default.
Messages with both notification and data payload, when received in the background. In this case, the notification is delivered to the device’s system tray, and the data payload is delivered in the extras of the intent of your launcher Activity.
Source: https://firebase.google.com/docs/cloud-messaging/android/receive#sample-receive
Related
When Android App is in Foreground State, onPushNotificationReceived listener is getting invoked having the notification data. When in Background or Terminated State, Notification does get received but onPushNotificationReceived listener is not getting invoked neither automatically nor when I tap on the notification. I'm sending the push from Azure Portal.
{
"notification":{
"title":"Notification Hub Test Notification",
"body":"This is a sample notification delivered by Azure Notification Hubs."
},
"data":{
"property1":"value1",
"property2":53
},
"priority": "high"
}
I'm following Tutorial: Send push notifications to Android devices using Firebase SDK version 1.0.0-preview1 (Current SDK) tutorial.
https://learn.microsoft.com/en-us/azure/notification-hubs/android-sdk
Android OS: 11
Is there something else which i need to do apart from the mentioned steps in the above link?
Make sure your app is in the background or closed then a notification message is shown in the notification center, and any data from that message is passed to the intent that is launched as a result of the user tapping on the notification.
When the intent is launched you can use the getIntent().getExtras();
onMessageReceived is provided for most message types, which follows
Notification messages delivered when your app is in the background. The notification is delivered to the device’s system
tray. A user tap on a notification opens the app launcher by
default.
Messages with both notification and data payload, when received in the background. The notification is delivered to the device’s system tray, and the data payload is delivered in the extras of the intent of your launcher Activity.
Refer Handling response & Push notification in android to implement in your project.
You can use the .getInitialMessage() on FirebaseMessaging instance
FirebaseMessaging.instance
.getInitialMessage()
.then((RemoteMessage message) {
if (message != null) {
Navigator.pushNamed(context, message.data['view']);
}
});
Refer here
I am developing an e-mail app in which I want that the user will get a push notification as soon as they receive new email. And for that purpose I am using FCM. I have just tried push notifications using FCM by following this link: https://www.youtube.com/watch?v=XijS62iP1Xo&t=6s in order to test what features FCM provides. But the problem I face is that the device receives push notifications when app is either in foreground or background but it won't receive any push notifications when the app is closed (swipe or clear from the task manager). I don't know how to achieve this via FCM? I want to receive push notifications just like the WhatsApp and Facebook apps.
Every kind of help is appreciated. Thanks in advance.
There are 2 types of push notifications: Data messages and Notification messages.
If you are using the Data messages you will be in charge of handling the received message and present a notification to the user (if needed of course). But in this case you might miss notifications when your app is closed.
If you are using Notification Messages, FCM is handling the message for you and directly displays a notification if the app is in background/closed.
Please see more here.
It is not possible to receive a push notification in an app that has been killed/stopped by "Force stop" in application settings:
Let me quote the response I got from Firebase Support when I posed them that question:
The Android framework advises that apps that have been stopped (i.e.
killed/force-stopped from Settings) should not be started without
explicit user interaction. FCM follows this recommendation, and thus
does not deliver messages to stopped apps. Here are some documentation
that discuss this topic:
Life of a message from FCM to the device Using Firebase Cloud
Messaging with Android O
This confirms what I observed when I tested it using a simple app.
But you should be able to get push messages from FCM when the app is in background, even if it was swiped off from Recents screen, or after system reboot. That is, unless the manufacturer made the swipe gesture to work the way "Force stop" does on your device. How you receive it in the background depends on whether the push notification contains the "notification" payload:
If it does, you will receive the "data" only if user taps on the notification and it will be delivered in the Intent extras to the activity launched by the notification action.
If it doesn't, you will receive the notification in onMessageReceived just like you do when the app is in foreground.
Some other cases when your app is not killed, but still may not receive push notifications:
there can be delays because of Doze mode if you don't use high priority for the push message
message might not be delivered if your app is background restricted
Yes only if you consider sending data payloads not notifications and handle it in onMessage()
get more info here
How to handle firebase notification on background as well as foreground?
If your App is Killed or in background,check for the Payload in your Launching Screen
in My case it is MainActivity so in onCreate() Check for Extras:
if (getIntent().getExtras() != null) {
for (String key : getIntent().getExtras().keySet()) {
Object value = getIntent().getExtras().get(key);
Log.d("MainActivity: ", "Key: " + key + " Value: " + value);
}
}
I implemented push notification.
It works find when the app is in foreground (the notification triggers OnMessageReceived method).
But, when the app is in background, there's no heads up.
And, when the phone is in sleep mode, the notification don't turns on the screen.
How can I fix this
Check that you send data.
Your request body should be constant data field. E.q.:
{
"to": "/topics/fcm_globals",
"data": {
"field1": "value1",
"field2": "value2"
}
}
If you have Xiaomi device. Check that system not blocked you app in background.
With FCM, you can send two types of messages to clients:
Notification messages, sometimes thought of as "display messages."
Data messages, which are handled by the client app.
As per FCM official document,
Use only data messages if you want to receive(In OnMessageReceived method) and process it when your app is in background.
I am able to group notifications for my app when it is in foreground. Whenever the app goes in background it creates multiple notification. How can I fix this?
As google says in this site, when app is in background notifications are administrated by the system by default :
Notifications delivered when your app is in the background. In this
case, the notification is delivered to the device’s system tray. A
user tap on a notification opens the app launcher by default.
But if you want to work with the notifications by "yourself" you should send the 'data message' instead of the 'notification' as is said here and you can handle the notification.
I'm developing an app using Ionic 2. This app must receive push notifications. The notifications are sent with GCM and received with Ionic 2 Native Notification plugin.
When the app receives a notification it saves the notification in a database.
When the app is open the notifications are received, saved and shown in the screen.
When the app is in background I receive a message in the notification area of the system and when tap this message it leads to my app and the app receives the message, saves it and show it.
The problem: When the app is in background, if I not tap the message in notification area and open my app the notification is not received by the app. And if I close the message in the notification area of the system by swaping it to the side the notification is lost.
My question is, how can send this notifications directly to the app? Need I change something in the backend/GCM or in the front end?
Edit.:
By adding 'content-available:1' now I don't need to touch the notification to to receive it. Anyway I still need to open the app to make it receive the notification.
This is my push message from GCM.
{
"delay_while_idle": true,
"priority": "high",
"data": {
"content-available": "1",
"some_data": "Some data",
"other_data": "Other data"
}
}