Develop Reference

Why will my android notification not send?

I am sending DATA payload from Postman, so the notification should be processed in onMessageReceived regardless of whether the app is in foreground or background.
According my logs and testing, onMessageReceived is fired, but the notifications are not showing (doesn't depend if the app is in foreground or background).
in manifest I have:
<service
android:name=".MyFirebaseMessagingService"
android:exported="false">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service> <!-- [END firebase_iid_service] -->
<service
android:name=".MyFirebaseInstanceIDService"
android:exported="false">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
</intent-filter>
</service>
and here is MyFirebaseMessagingService.java:
public class MyFirebaseMessagingService extends FirebaseMessagingService {
#Override
public void onMessageReceived(#NonNull RemoteMessage remoteMessage) {
super.onMessageReceived(remoteMessage);
String title = "";
if (Objects.requireNonNull(remoteMessage.getData()).get("title") != null)
title = remoteMessage.getData().get("title");
String message = "";
if (Objects.requireNonNull(remoteMessage.getData()).get("message") != null)
message = remoteMessage.getData().get("message");
Log.e("notification",title);
sendNotification(title, message);
}
private void sendNotification(String title, String body) {
Intent i = new Intent(this, Novinky.class);
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pi = PendingIntent.getActivity(this,
0, // Request code
i,
PendingIntent.FLAG_ONE_SHOT);
Uri sound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder builder = new NotificationCompat.Builder(this,
getString(R.string.default_notification_channel_id))
.setSmallIcon(R.mipmap.ic_notify)
.setContentTitle(title)
.setContentText(body)
.setAutoCancel(true)
.setSound(sound)
.setContentIntent(pi);
NotificationManager manager =
(NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
assert manager != null;
manager.notify(0, builder.build());
}
}
So I have Log.e("notification",title); there, and it is executed properly, but the notify is not received.
Before I send also a notification+data via Postman, that worked, but that is only an automatic notification not handled by app, so now I want to send only DATA payload and handle it in the app, but for some reason it doesn't work.

You need to make sure you have created your notification channel in your app. A good way to do this is as follows:
public class App extends Application {
#Override
public void onCreate() {
super.onCreate();
createNotificationChannel();
}
private void createNotificationChannel() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel nChan = new NotificationChannel(
getString(R.string.default_notification_channel_id),
"My_Channel",
NotificationManager.IMPORTANCE_DEFAULT
);
NotificationManager manager = getSystemService(NotificationManager.class);
manager.createNotificationChannel(nChan);
}
}
}
Creating your notification channel in the onCreate() of your app is a good idea as you don't have to worry about it for the rest of the application life time.

Launch special activity when click notification in background from firebase

I used Firebase messaging in my app and send some value with notification to my app, and when tap the notification to open a special activity.
this works just when app in forground(app is opened) and when tap the notification activity opened and show conent sended from firebase .
but i want open activity when app is closed(background).
manifest code :
<activity
android:name=".activity.NotificationActivity"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="activity_post" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
MyFirebaseMessagingService class code:
#Override
public void onMessageReceived(RemoteMessage remoteMessage) {
Log.d(TAG, "From: " + remoteMessage.getFrom());
// Check if message contains a data payload.
if (remoteMessage.getData().size() > 0) {
Map<String,String> data=remoteMessage.getData();
switch (data.get(DESTINATION_TYPE)){
case DESTINATION_TYPE_ACTIVITY:
String activity=data.get(DESTINATION);
switch (activity){
case ACTIVITY_POST:
Intent showPostActivityIntent=new Intent(this, NotificationActivity.class);
String postTitle=data.get(EXTRA_POST_TITLE);
String postContent=data.get(EXTRA_POST_CONTENT);
String postImageUrl=data.get(EXTRA_POST_IMAGE_URL);
showPostActivityIntent.putExtra("title",postTitle);
showPostActivityIntent.putExtra("content",postContent);
showPostActivityIntent.putExtra("image_url",postImageUrl);
showPostActivityIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
sendNotification(remoteMessage.getNotification().getBody(),showPostActivityIntent);
}
break;
}
}
// Check if message contains a notification payload.
if (remoteMessage.getNotification() != null) {
Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
}
private void sendNotification(String messageBody,Intent intent) {
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.mipmap.ic_launcher)
.setLargeIcon(BitmapFactory.decodeResource(getResources(),R.mipmap.ic_launcher))
.setContentTitle("Tip Top App")
.setContentText(messageBody)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}

Stop receiveing notification FCM when apps is remove from Task Manager

I made apps that need to get a notification though the apps are closed. I'm using fcm to get the notification. But when the apps are removed from the recent task, I stop getting a notification. I had seen other article but I still can't get the answer to my problem.
I'm using firebase:
'com.google.firebase:firebase-messaging:11.0.2'
MyFirebaseMessagingService.java
public class MyFirebaseMessagingService extends FirebaseMessagingService {
private static final String TAG = MyFirebaseMessagingService.class.getSimpleName();
#Override
public void onMessageReceived(RemoteMessage remoteMessage) {
Log.e(TAG, "From: " + remoteMessage.getFrom());
Log.e(TAG, "Data Payload: " + remoteMessage.getData().toString());
Log.e(TAG," remote :" +remoteMessage.toString() );
try {
JSONObject json = new JSONObject(remoteMessage.getData());
String title = json.get("title").toString();
String message = json.get("message").toString();
createNottification(title, message);
}
catch (Exception ex){}
if(remoteMessage.getNotification() != null)
Log.d(TAG, "Message Notification Body: "+remoteMessage.getNotification().getBody());
}
private void createNottification(String title,String message)
{
Uri notificationSoundURI = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);;
Notification notification = new NotificationCompat.Builder(this)
.setContentTitle(title)
.setContentText(message)
.setSmallIcon(R.mipmap.pmi_launcher)
.setSound(notificationSoundURI )
.build();
NotificationManagerCompat notificationManager = NotificationManagerCompat.from(getApplicationContext());
notificationManager.notify(Config.NOTIFICATION_ID, notification);
}
}
Manifest.xml
<!-- Firebase Notifications -->
<service android:name=".services.MyFirebaseMessagingService" android:stopWithTask="false">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service>
<service android:name=".services.MyFirebaseInstanceIDService"
android:exported="true">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
</intent-filter>
</service>

first pass PendingIntent and also pass unique notification ID for generate bunch or stack of notification. also set Flags for notification Intent.so just do this in this way. Hope it helps to you and also other users.
private void sendNotification(String message,String title) {
int id = (int) System.currentTimeMillis();
Intent notificationIntent = new Intent(this, SplashActivity.class);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
| Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0,
notificationIntent, 0);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setContentTitle(title)
.setContentText(message)
//.setStyle(new NotificationCompat.BigPictureStyle().bigPicture(image).setSummaryText(message))
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
notificationBuilder.setSmallIcon(R.mipmap.ic_launcher);
} else {
notificationBuilder.setSmallIcon(R.mipmap.ic_launcher);
}
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(id, notificationBuilder.build());
}

Firebase push notifications device id is valid only once

I have firebase push notifications set up in my android app. The first time I launch an app, I print out the device id in my FirebaseInstanceIdService. When I try to send a notification to this device id from the firebase console, it says that it was sent successfully, but I don't receive it in my FirebaseMessagingService. If I try to send once more, I get the following error:
This is how I initialize services inside manifest.xml:
<service
android:name=".MyFirebaseMessagingService"
android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT"/>
</intent-filter>
</service>
<service
android:name=".MyFirebaseInstanceIDService"
android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
</intent-filter>
</service>
FirebaseInstanceIdService:
public class MyFirebaseInstanceIDService extends FirebaseInstanceIdService {
#Override
public void onTokenRefresh() {
String refreshedToken = FirebaseInstanceId.getInstance().getToken();
Log.d("TEST", "Refreshed token: " + refreshedToken);
super.onTokenRefresh();
sendRegistrationToServer(refreshedToken);
}
private void sendRegistrationToServer(String token) {
// TODO: Implement this method to send token to your app server.
}
}
FirebaseMessagingService:
public class MyFirebaseMessagingService extends FirebaseMessagingService {
#Override
public void onMessageReceived(RemoteMessage remoteMessage) {
Log.d("TEST", "From: " + remoteMessage.getFrom());
sendNotification("sfa");
}
private void sendNotification(String messageBody) {
Intent intent = new Intent(this, NewsFeedActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_app_icon)
.setContentTitle("FCM Message")
.setContentText(messageBody)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0 , notificationBuilder.build());
}
}
This is how I initialize FirebaseApp inside my main activity onCreate method:
FirebaseApp.initializeApp(this);

Token will be refreshed on certain conditions:
App deletes Instance ID
App is restored on a new device
User uninstalls/reinstall the app
User clears app data
You have to make sure that you are using the same token that stored in your app to send the notifications to the app. If you accidentally reinstall or clear your app data, you might want to retrieve the new token before sending the notification.

FCM - Message Not Displayed in Header

I'm trying to implement FCM on my apps. The tutorial source was from here.
The Push Notification was delivered successfully, but why isn't the message displayed in the header? (just like when receiving WhatsApp message). It just shows silently in the back list (after we scroll down the header). Also the push notification doesn't produce any sounds.
Here're my code :
AndroidManifest.xml :
<service android:name="com.myapps.TokenService">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
</intent-filter>
</service>
<service android:name="com.myapps.FCMMessageReceiverService">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT"/>
</intent-filter>
</service>
FCMMessageReceiverService.java :
public class FCMMessageReceiverService extends FirebaseMessagingService {
#Override
public void onMessageReceived(RemoteMessage remoteMessage) {
Log.d("Notification Received",remoteMessage.getNotification().getBody());
sendNotification(remoteMessage.getNotification().getBody());
sendSnackbar(remoteMessage.getNotification().getBody());
}
private void sendNotification(String messageBody) {
Intent intent = new Intent(this, MyActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 , intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle(messageBody)
.setAutoCancel(false)
.setSound(defaultSoundUri);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(1, notificationBuilder.build());
}
private void sendSnackbar(String messagebody)
{
}
}
TokenService.java :
public class TokenService extends FirebaseInstanceIdService {
#Override
public void onTokenRefresh() {
//super.onTokenRefresh();
String refreshedToken = FirebaseInstanceId.getInstance().getToken();
Log.w("notification", refreshedToken);
sendRegistrationToServer(refreshedToken);
}
private void sendRegistrationToServer(String token) {
}
}

<service
android:name=".MyFirebaseMessagingService"
android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT"/>
</intent-filter>
</service>
Just add two attributes android:enabled and android:exported as shown above in AndroidManifest.xml