title: Android notification Icon remains the default icon, even after change
body: <p>This problem simply puzzles me. I uploaded a new icon for my app, the app's Icon on my phone's dashboard changed. However, the notification Icon remains the same default green floating android, although I declared a different Icon while setting the notification - I also see the correct icon in Android Studio's preview near the line number, but still nothing.</p>
  
  <pre><code>NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context,"123")
                  .setSmallIcon(R.mipmap.ic_launcher_foreground)
                  .setLargeIcon(BitmapFactory.decodeResource(context.getResources(),
                          R.mipmap.ic_launcher_foreground))
                  .setContentTitle("Reminder: "+title)
                  .setContentText("Go do it TIGER!")
                  .setPriority(NotificationCompat.PRIORITY_HIGH)
                  // Set the intent that will fire when the user taps the notification
                  .setContentIntent(pendingIntent)
                  .setAutoCancel(true);
  </code></pre>
  
  <p>Thanks in advance.</p>