title: Get the selected data displayed when radio button selected [ionic]
body: <p>I'm trying to display the radio button data based on user select but it doesn't display anything. Here is my code :</p>
  
  <pre><code>&lt;div ng-app="" ng-init="categoryID"&gt;
      &lt;ion-list radio-group&gt;
  
          &lt;ion-item&gt;
              &lt;ion-label&gt;Category 1&lt;/ion-label&gt;
              &lt;ion-radio value="category1" ng-model="categoryID"&gt;&lt;/ion-radio&gt;
          &lt;/ion-item&gt;
  
          &lt;ion-item&gt;
              &lt;ion-label&gt;Category 2&lt;/ion-label&gt;
              &lt;ion-radio value="category2" ng-model="categoryID"&gt;&lt;/ion-radio&gt;
          &lt;/ion-item&gt;
  
          &lt;ion-item&gt;
              &lt;ion-label&gt;Category 3&lt;/ion-label&gt;
              &lt;ion-radio value="category3" ng-model="categoryID"&gt;&lt;/ion-radio&gt;
          &lt;/ion-item&gt;
  
      &lt;/ion-list&gt;
  
      &lt;p&gt;Category : {{ categoryID }}&lt;/p&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>Trying to display like how it display at this url <a href="https://codepen.io/terrer-sandman/pen/erMzzQ" rel="nofollow noreferrer">https://codepen.io/terrer-sandman/pen/erMzzQ</a></p>