Firebase Push Notifications does not receive

Question

I'm trying firebase push notification. I did everything it said in the tutorial, but it isn't working.

FirebaseMessagingService:

  package com.example.firebasenf.firebasenf;

import com.google.firebase.messaging.FirebaseMessagingService;/

public class MyFirebaseMessagingService extends FirebaseMessagingService {
}

FirebaseInstanceIdService:

package com.example.firebasenf.firebasenf;

import com.google.firebase.iid.FirebaseInstanceIdService;

public class MyFirebaseInstanceIDService extends FirebaseInstanceIdService {
}

Manifest:

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

Answer 1

you need to add some methods to your code :

FirebaseMessagingService:

    package com.example.firebasenf.firebasenf;

import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.support.v4.app.NotificationCompat;

import com.google.firebase.messaging.FirebaseMessagingService;
import com.google.firebase.messaging.RemoteMessage;

public class MyFirebaseMessagingService extends FirebaseMessagingService {

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage){
        Intent intent = new Intent(this,MainActivity.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        PendingIntent pendingIntent = PendingIntent.getActivity(this,0,intent,PendingIntent.FLAG_ONE_SHOT);
        NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this);
        notificationBuilder.setContentTitle("Application Title");
        notificationBuilder.setContentText(remoteMessage.getNotification().getBody());
        notificationBuilder.setAutoCancel(true);
        notificationBuilder.setSmallIcon(R.mipmap.ic_launcher);
        notificationBuilder.setContentIntent(pendingIntent);
        NotificationManager notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(0,notificationBuilder.build());
    }
}

FirebaseInstanceIdService :

package com.example.firebasenf.firebasenf;

import android.util.Log;

import com.google.firebase.iid.FirebaseInstanceId;
import com.google.firebase.iid.FirebaseInstanceIdService;

public class MyFirebaseInstanceIDService extends FirebaseInstanceIdService {
    private static final String REG_TOKEN = "REG_TOKEN";

    @Override
    public void onTokenRefresh(){
        String recent_token = FirebaseInstanceId.getInstance().getToken();
        Log.d(REG_TOKEN,recent_token);
    }
}