title: react native set app icon badge number
body: <p>I set the badge number on my IOS app icon through PushNotificationIOS API. However, I don't see the number above the icon at all. There are no errors.</p>
  
  <pre><code>componentDidMount() {
      //PushNotificationIOS.requestPermissions(['badge','alert','sound']);
      PushNotificationIOS.setApplicationIconBadgeNumber(10);
      PushNotificationIOS.getApplicationIconBadgeNumber((res)=&gt;{
          console.log(res) //returns 10
      });
  }
  </code></pre>