title: react-native-onesignal receive push notification without opening notification
body: <p>I have checked <a href="https://github.com/geektimecoil/react-native-onesignal" rel="nofollow">react-native-onesignal</a> github README and it seems the only way to get the notification is to open which is through the <a href="https://github.com/geektimecoil/react-native-onesignal#android-usage" rel="nofollow">onNotificationOpened()</a> callback.</p>
  
  <p>Their documentation stated that:</p>
  
  <blockquote>
    <p>When any notification is opened or received the callback <code>onNotification</code> is called passing an object with the notification data.</p>
  </blockquote>
  
  <p>But <code>onNotification</code> clearly does not work. </p>
  
  <p>Is there any way to get the notification without opening the push notification or enabling the in-app alert notification?</p>