CODEWITHSUNDEEP
javaandroidfirebasefirebase-cloud-messaging
natsumiyu
natsumiyu

Reputation: 3257

Push Notification is not displaying in Notification Bar Android

I've just migrated to androidx to implement firebase messaging. I've changed everything to androidx and connect my app to firebase. At first when I send a notification from firebase console it crashes. To avoid the crash I put the FirebaseApp.initializeApp(this); in my MainActivity.

But still I don't see any notification in the notification list.

In my Manifest I put 

<service android:name=".MyFirebaseMessagingService"
    android:exported="false">
    <intent-filter>
        <action android:name="com.google.firebase.MESSAGING_EVENT" />
    </intent-filter>
</service>

For MyFirebaseMessagingService

public class MyFirebaseMessagingService extends FirebaseMessagingService {
    public static final String TAG = "FirebaseSerive";

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {

        String title = remoteMessage.getData().get("title");
        String body = remoteMessage.getData().get("body");

        Notification notification = new Notification.Builder(this)
            .setContentTitle(title)
            .setContentText(body)
            .setSmallIcon(R.drawable.ss_icon)
            .build();
        NotificationManagerCompat manager = NotificationManagerCompat.from(getApplicationContext());
        manager.notify(/*notification id*/0, notification);
    }
}

After updating my code my emulator is displaying Failed to post notification on channel “null”

Thank you for the help in advance.Hope you can help me.

Upvotes: 0

Views: 271

Answers (1)

vikas kumar
vikas kumar

Reputation: 11018

You can try using this channel thing introduced in OREO. May be that is causing the issue.

    public class MyFirebaseMessagingService extends FirebaseMessagingService {

    public static final String TAG = "FirebaseSerive";
    public static final String NOTIFICATION_CHANNEL_ID = "IMP_NOTIFICATIONS";


    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {

        String title = remoteMessage.getNotification().getTitle();
        String body = remoteMessage.getNotification().getBody();

        Notification.Builder notification = new Notification.Builder(this)
                .setContentTitle(title)
                .setContentText(body)
                .setSmallIcon(R.drawable.ss_icon);

        NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
            int importance = NotificationManager.IMPORTANCE_HIGH;
            NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "NOTIFICATION_CHANNEL_NAME", importance);
            notificationChannel.enableLights(true);
            notificationChannel.setLightColor(Color.RED);
            notificationChannel.enableVibration(true);
            notificationChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});
            assert mNotificationManager != null;
            notification.setChannelId(NOTIFICATION_CHANNEL_ID);
            mNotificationManager.createNotificationChannel(notificationChannel);
        }

        mNotificationManager.notify(/*notification id*/0, notification.build());
    }
}

Edit: may be you are getting notification payload instead of data, which you can check by using below code.

    // Check if message contains a notification payload.
    if (remoteMessage.getNotification() != null) {
        Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
    }

Read more here for example.

Docs

Upvotes: 1

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