title: Not getting Large Icon when app is not in background
body: <p>I am setting large icon for push notification by using following code. </p>
  
  <pre><code> new NotificationCompat.Builder(this, channelId)
                      .setSmallIcon(R.drawable.logo)
                      .setContentTitle(notification.getTitle())
                      .setContentText(notification.getBody())
                      .setAutoCancel(true)
                      .setColor(getResources().getColor(R.color.green))
                      .setSound(defaultSoundUri)
                      .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.drawable.logo))
                      .setPriority(Notification.PRIORITY_MAX)
                      .setContentIntent(pendingIntent);
  </code></pre>
  
  <p>This works fine and shows <code>largeIcon</code> when app is in foreground, but when app is not in foreground, it does not display large icon. </p>
  
  <p>I am testing the app in <code>samsung s7(oreo)</code></p>