Firebase Cloud Messaging not working only once

Question

Hi there. I practiced the FCM messaging, but it fails to send a message. I made based on Google Code, and yet I was reading it, but the server does not send the message and the base console can fire only once. Can anyone help? Here are the codes!

MainActivity:

public class MainActivity extends AppCompatActivity {

        static Context context;
        static TextView token;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);

            context = getApplicationContext();
            token = (TextView) findViewById(R.id.token);
        }
    }

FCMMessagingService

public class FCMMessagingService extends FirebaseMessagingService {

        @Override
        public void onMessageReceived(RemoteMessage remoteMessage) {
            String title = remoteMessage.getNotification().getTitle();
            String body = remoteMessage.getNotification().getBody();

            Intent intent = new Intent(this, MainActivity.class);
            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            PendingIntent pendingIntent = PendingIntent.getActivity(this, 10, intent, PendingIntent.FLAG_ONE_SHOT);
            Notification notificationBuilder = new NotificationCompat.Builder(this)
                    .setContentTitle(title)
                    .setContentText(body)
                    .setSmallIcon(R.mipmap.ic_launcher)
                    .setAutoCancel(true)
                    .setContentIntent(pendingIntent)
                    .build();
            NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
            notificationManager.notify(0, notificationBuilder);



            super.onMessageReceived(remoteMessage);
        }
    }

FCMInstanceIdService

public class FCMInstanceIdService extends FirebaseInstanceIdService {

        public static final String TOKEN = "token";
        @Override
        public void onTokenRefresh() {
            super.onTokenRefresh();
            String token = FirebaseInstanceId.getInstance().getToken();

            SharedPreferences sp = getApplicationContext().getSharedPreferences(TOKEN, Context.MODE_PRIVATE);
            sp.edit().putString(TOKEN, token).commit();
            Log.d("TOKEN_NO: ", token);
        }
    }

Manifest

<service android:name=".FCMInstanceIdService">
        <intent-filter>
            <action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
        </intent-filter>
    </service>
    <service android:name=".FCMMessagingService">
        <intent-filter>
            <action android:name="com.google.firabase.MESSAGING_EVENT"/>
        </intent-filter>
    </service>

Project .gradle

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.1.3'
        classpath 'com.google.gms:google-services:3.0.0'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

Module .gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 24
    buildToolsVersion "23.0.2"

    defaultConfig {
        applicationId "hu.penged.cloudmessage"
        minSdkVersion 14
        targetSdkVersion 24
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:24.2.0'
    compile 'com.google.firebase:firebase-messaging:9.4.0'
}
apply plugin: 'com.google.gms.google-services'

..And server.php...

<?php
    $server_key = "AIzaSyA4ahv6z05t4sbSOZDkw5pX-5EvOHA7zfA";
    $adress = "enI7T1-U69o:APA91bHLnlAOJxg8kebr7GcpoVqBf__EHXADofEG-rQiGH60fH3HstCk9BroxoBXjlFEzKJoln-ghATjlcyo4UiCmyDjTeKOKG7NHY1ADiwWxxhg3tvBdWc2J_PbMM0wzKjjpDpgDk6x";
    $fcm_server_url = "https://fcm.googleapis.com/fcm/send";

    $title = utf8_encode("Notification Test");
    $content_text = utf8_encode("Notification message.");

    $httpheared = array("Content-Type:application/json", "Authorization:key=".$server_key);

    $post_content = array("to" => $adress, "notification" => array("title" => $title, "body" => $content-text));

    $curl_connection = curl_init();
    curl_setopt($curl_connection, CURLOPT_URL, $fcm_server_url);
    curl_setopt($curl_connection, CURLOPT_POST, true);
    curl_setopt($curl_connection, CURLOPT_HTTPHEADER, $httpheared);
    curl_setopt($curl_connection, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($curl_connection, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($curl_connection, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
    curl_setopt($curl_connection, CURLOPT_POSTFIELDS, json_encode($post_content));
    $valasz = curl_exec($curl_connection);
    curl_close($curl_connection);

    echo $valasz;
    ?>

Thank you very much for your help!!!

Answer 1

Try to do the following: In your server.php script instead of notification param use data. So it will be: "data" => array("title" => $title, "body" => $content-text) And in your onMessageReceived method get the param with: remoteMessage.getData().get("title"); and the same code for the other param with the key "body".

Also check if your onMessageReceived method is being called when the mobile device receives the notification.

Hope this helps!