title: Status Bar Notification Not Showing?
body: <p>I have a simple method which onclick() of a Button should generate status bar notification, but for some reason, it isn't showing up.</p>
  
  <pre><code>public void createNotification() {
      NotificationCompat.Builder builder = new NotificationCompat.Builder(this)
              .setSmallIcon(android.R.drawable.ic_dialog_alert)
              .setContentTitle("Notification!")
              .setContentText("This is my first notification!");
      Notification notification = builder.build();
      NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
      notificationManager.notify(0, notification);
  }
  </code></pre>