Firebase notifications

Create the MyService class

public class MyService extends Service {
MediaPlayer mediaPlayer;

public MyService() {
}

@Override
public IBinder onBind(Intent intent) {
    // TODO: Return the communication channel to the service.
    throw new UnsupportedOperationException("Not yet implemented");

}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {

    mediaPlayer.start();
    return super.onStartCommand(intent,flags,startId);
}

@Override
public void onCreate() {
    super.onCreate();
    mediaPlayer = MediaPlayer.create(getApplicationContext(), R.raw.uefa);
}}

In the manifest.xml add

   <service
        android:name=".MyService"
        android:enabled="true"
        android:exported="true">
    </service>

In the MyFireBaseMessagingService class add

public void onCreate() {
    super.onCreate();
    startService(new Intent(getApplicationContext(),MyService.class));
}

This way when a message arrives a sound is played alerting that a message arrived although the phone is with the screen off / close the app

When you send the notification go to advanced options and enable priority and sound:

Remember to assign the sound to the Builder, if the sound is defined on the payload

 "sound" : "default"

how to assign a sound stored in the /raw directory is as follows:

mBuilder.setSound(Uri.parse("android.resource://"+ getPackageName() + "/" + R.raw.mysound));

Ensure that the payload comes from the value of the sound with which you can also determine whether or not to reproduce the sound:

  

sound (Optional) Indicates a sound for Play when the device receives the notification. Supports default or the name of   file of a sound resource contained in the app.

     

Android sound files must reside in / res / raw /, while   that iOS sound files can be found in the content   of the client's app or in the Library / Sounds folder of the   data container of the app. For more information, see   the library for iOS developers.

The documentation indicates that you should use this method:

{
    "to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",

    "notification" : {
      "body" : "great match!",
      "title" : "Portugal vs. Denmark",
      "icon" : "myicon",
      "sound" : "mySound"
    }
  }

and define your sound in "sound" , if you wanted to use one by default it would be enough to put "sound": "default"