title: Android Notification icon is not showing
body: <p>I already set my notification icon but its showing mipmap ic_launcher icon.Plese help me to show the icon when notification  comes.</p>
  
  <pre><code> private void addNotification() {
      NotificationCompat.Builder builder = new NotificationCompat.Builder(getActivity())
                      .setSmallIcon(R.mipmap.logo)
                      .setLargeIcon(BitmapFactory.decodeResource(getActivity().getResources(),
                              R.mipmap.logo))
                      .setContentTitle("Delivery Boy")
                      .setWhen(System.currentTimeMillis())
                      .setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
                      .setContentText("You have  Pending Orders");
  
  
      Intent notificationIntent = new Intent(getContext(), MainActivity.class);
      PendingIntent contentIntent = PendingIntent.getActivity(getContext(), 0, notificationIntent,
              PendingIntent.FLAG_UPDATE_CURRENT);
      builder.setContentIntent(contentIntent);
  
      // Add as notification
      NotificationManager manager = (NotificationManager)getActivity().getSystemService(Context.NOTIFICATION_SERVICE);
      manager.notify(0, builder.build());
  }
  </code></pre>