title: why setlargeIcon does not work?
body: <p>I created my notification like this</p>
  
  <pre><code>    Notification notification = new NotificationCompat.Builder(this)
                                  .setTicker("ticher")
                                  .setContentTitle("title")
                                  .setContentText("text")
                                  .setSmallIcon(R.drawable.ic_action_email)
                                  .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.drawable.ic_disturb))
                                  .setAutoCancel(false)
                                  .build();
  </code></pre>
  
  <p>But setLargeIcon does not work. Large icon of notification is always app icon.</p>
  
  <p>I don't know why. thanks for your help.</p>