I'm using FCM. Notifications are working properly and onMessageReceived is called on Foreground, but when I receive a notification while the app is in background/killed that method is never called.
I'm using data messages as Firebase Documentation suggested but no succeed...
FCM has 3 kind of notifications
1. Notification messages
Json body will be only having notification tag
FCM will automatically show notification in client app if app is in background. onMessageReceived() will be called both in foreground . In background, onMessageReceived() will not be called.
{
"message":{
"token":"bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
"notification":{
"title":"Portugal vs. Denmark",
"body":"great match!"
}
}
}
2. Data messages
Json body will be only having data tag
Developer have to show notification. onMessageRecieved will be called both in foreground as well as in background. The json should only have data tag in it
{
"message":{
"token":"bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
"data":{
"Nick" : "Mario",
"body" : "great match!",
"Room" : "PortugalVSDenmark"
}
}
}
3. Notification and data messages
The json body will be having both notification and data tags. onMessageReceived() will be called only when app is in foreground. Notifications will be shown automatically shown if app is in background and onMessageReceived() will not be called.
{
"message":{
"token":"bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
"notification":{
"title":"Portugal vs. Denmark",
"body":"great match!"
},
"data" : {
"Nick" : "Mario",
"Room" : "PortugalVSDenmark"
}
}
}
For more info please read https://firebase.google.com/docs/cloud-messaging/concept-options
Are you sure you add like this service in
AndroidManifest.xml
<service android:name=".services.fcm.FirebaseService">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service>
this is the notification I'm sending:
payload = new JSONObject();
notification = new JSONObject();
notification.put("title", "Avisos");
notification.put("text", "Nuevos avisos disponibles");
payload.put("data", notification);
payload.put("to", "/topics/avisos");
payload.put("priority",10);
Related
I am using PushNotifications Capacitor plugin and FCM to send the notifications, everything works fine until I want to send a Push Notification with both notification and data fields on Android.
What I want to do is to send a custom data with the notification and consume the notification on app resume. I am using PushNotifications.getDeliveredNotifications() method to get the notifications on resume, on iOS I get all the notifications with proper data, but on Android data property is replaced with the object below:
{
body: "My Body",
data: {
android.appInfo: "ApplicationInfo{809371c app}",
android.bigText: "My Body",
android.progress: 0,
android.progressIndeterminate: false,
android.progressMax: 0,
android.reduced.images: true,
android.showChronometer: false,
android.showWhen: true,
android.template: "android.app.Notification$BigTextStyle",
android.text: "My Body",
android.title: "My Title",
gameDndOn: false,
specialType: "",
topFullscreen: false,
groupSummary: false,
id: 0,
title: "My Title"
}
}
I see in the FCM docs for Android apps that if both notification and data fields are present and the app is in the background the notification lands in the system tray and data in extras of the intent.
I am getting proper data when I tap on the notification, but in my case I want to get that on resume, without tapping on the notification.
Is there any way to get to that data in that case?
You have to create the message in this format
{
"message":{
"token":"bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
"notification":{
"title":"Portugal vs. Denmark",
"body":"great match!"
},
"data" : {
"Nick" : "Mario",
"Room" : "PortugalVSDenmark"
}
}
}
Note : notification structure is critical for receiving a notification. You need to have title and body. This gets displayed in the notification drawer.
data can be customized as per your requirement. This will have the data that you need inside your app.
Suggestion, keep your payload small. Send data which is absolutely necessary and also safe to send over FCM.
Look at this part of the official documentation
For handling push notifications in capacitor, you should use the listeners. Here is the official docs way of doing it.
I am sending notification and handle notification FirebaseMessagingService.
But if app on background FirebaseMessagingService cannot handle notification and not show image.
How can I do this? (If the application is in the foreground, the picture is shown in the notification.)
And if I use onesignal image showing all times.
{
"to" :"4sQrChOF16uMYYEKeiRz6dzCnN3m9OCE9jwOyPBOD92IlzljWvQ_1quiYyluP",
"notification" : {
"body" : "great match!",
"title" : "Portugal vs. Denmark",
"icon" : "myicon"
},
"data": {
"body" : "great match!",
"title" : "Portugal vs. Denmark2222",
"img_url" : "https://encrypted-tbn0.gstatic.com/images?q=tbn%3AANd9GcRYJ_0NZFg0htNXwmKkyTv76bw05EacXaXNnqd4ZrPB7wVTXNxR"
}
}
Here are 2 ways you can show an image in your notification consistently:
[Recommended approach] - Using the newer HTTP V1 API of FCM:
Here you can give an image URL as part of the notification payload and firebase will handle downloading and displaying the image for you. Here's the documentation link for the same.
Using the older legacy API of FCM:
Send a data-only payload(Don't send the notification object at all). Include image URL as part of the data payload. This will give you control in the onMessageReceived method(in both foreground and background cases). Here you can generate and display the notification however you like it. Retrieve the image URL here and download the image and create a notification with the image or however you want it to be rendered.
I'm working on an app in which i get from the server some push notifications when some events are triggered.
When the application is in foreground all works great, in the onMessageReceived() i get the remoteMessage and handle it based on its map key value.
The problem is in background or when the application is not running...I still get the notification in the device screen, and when i tap on it the activity starts.
I do the following verification after the activity starts:
Bundle mBundle = getIntent().getExtras();
if(mBundle != null)
{
//do stuff
}
But i always get the mMap = null in the bundle object which means i cannot handle properly the push notification.
Can something be done about this ?
There are two types of Notification Message
1. Notification message
Notification Message can be fetched when application is running, but if the application is not running(killed) then it will not work. It only shows that notification is arrived.
example,
{
"message":{
"token":"bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
"notification":{
"title":"Portugal vs. Denmark",
"body":"great match!"
}
}
}
2. Data message (also known as silent notification)
Whereas Data Messagegs works even if the application is not running.
example,
{
"message":{
"token":"bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
"data":{
"Nick" : "Mario",
"body" : "great match!",
"Room" : "PortugalVSDenmark"
}
}
}
I have been trying to send the Push notification using FCM. It works completely when the app is in Foreground or background. But if i kill the app from recent list then i'm not getting any notification.
This is my structure of FCM with data payload
{"registration_ids":["here is my FCM token"],
"data":{
"body" :"Hello All, Hope you had a great time!",
"title":"Title",
"click_action":"ACTIVITY_MESSAGE",
"sound":"default",
"type" : "message",
"message": "message_here",
"time" : "2016-12-14 03:37:pm"
}
}
This is the structure with data and notification
{"registration_ids":["Here is my FCM token"],
"notification":{
"body" : "Hello All, Hope you had a great time!",
"title":"title here",
"click_action":"ACTIVITY_HOME",
"sound":"default"
},
"data":{
"type" : "message",
"message": "message_here",
"time" : "2016-12-14 03:37:pm"
}
}
I have also tried the same with notification tag and data as well but nothing is working in case whent the app is killed. If any one have any idea how can i get the notification in case of my app is killed then do share.
You should try to put "forceStart": "1" inside the data brackets.
In this way you should force the application to start the notification.
I am using firebase to send notifications to my app. I want to save the notifications received on each device in a local database. The problem is, when the app is in the background and a notification is received, the method onMessageReceived() won't be called, but instead the notification would be added to the system tray as per documentation. The documentation also mentions the following for receiving a notification when the app is in background:
In these cases, 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.
So, when I'm trying to access the extras in the intent, the keys of the notification are not found.
My code in MainActivity.java:
if (getIntent().getExtras() != null) {
for (String key : getIntent().getExtras().keySet()) {
Object value = getIntent().getExtras().get(key);
Toast.makeText(this, "Key: " + key + " Value: " + value, Toast.LENGTH_LONG).show();
}
}
The notification we are sending from the server:
{
"to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
"notification" : {
"body" : "great match!",
"title" : "Portugal vs. Denmark",
"icon" : "myicon"
}
}
Anyone has an idea of how I can retrieve the values inside the notification?
This is the intended behavior (as you've seen in the documentation). If you're using a notification-only message payload (which you are), onMessageReceived() will only be called if your app is in foreground, if not, the System Tray will be receiving it.
The data being referred to in (emphasis mine):
In these cases, 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.
is the data message payload (See Message Types).
You'll have to send a payload with both notification and data. Like so:
{
"to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
"notification" : {
"body" : "great match!",
"title" : "Portugal vs. Denmark",
"icon" : "myicon"
},
"data": {
"body" : "great match!",
"title" : "Portugal vs. Denmark",
"icon" : "myicon"
}
}
Also see my answer here.
All you have to do is update your notification push format.
From:
{
"to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
"notification" : {
"body" : "great match!",
"title" : "Portugal vs. Denmark",
"icon" : "myicon"
}
}
To
{
"to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
"data" : {
"body" : "great match!",
"title" : "Portugal vs. Denmark",
"icon" : "myicon"
}
}
Explanation:
There is a firebase service running by your system which works for all app and handle all push notification if it contains the "notification" tag. but if contain the "data" tag only it just handover the task to the service created by the app where you can do anything.In your case show user notification and save it to the local db. For more you read here Documentation : Handle Messages.
It's not a simple or clean solution, but you could use a NotificationListenerService to receive a callback for each notification. A further limitation is that it supports only API 18 and above.
Add this to manifest file
<intent-filter>
<action android:name=".MainActivity" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>