public  void onMessageReceived(RemoteMessage remoteMessage){
    super.onMessageReceived(remoteMessage);
    getimage(remoteMessage.getNotification().getTitle(), remoteMessage.getNotification().getBody());

}
public void getimage(String title,String message){

    NotificationCompat.Builder builder=new NotificationCompat.Builder(this,"mynotification")
            .setContentTitle(title)
            .setLargeIcon(BitmapFactory.decodeResource(this.getResources(),
                    R.drawable.otplogo
            ))
            .setSmallIcon(R.drawable.otplogo)
            .setAutoCancel(true)
            .setContentText(message);


    NotificationManagerCompat manager =NotificationManagerCompat.from(this);
    manager.notify(999,builder.build());

}