title: It is impossible to catch scroll event in ionic 3
body: <p>I want to catch scrolling event of list component in ionic3 as in this example:</p>
  
  <pre class="lang-html prettyprint-override"><code>&lt;ion-content on-scroll = "scrolling()" on-scroll-complete = "scrollComplete()"&gt;
    &lt;ion-list&gt;
      &lt;ion-item ng-repeat="item in items" 
                item="item"
                href="#/item/{{item.id}}"&gt;
        Item {{ item.id }}
      &lt;/ion-item&gt;
    &lt;/ion-list&gt;   
  &lt;/ion-content&gt;      
  </code></pre>
  
  <p></p>
  
  <p><a href="https://codepen.io/etipirev/pen/aNYNpy?editors=1111" rel="nofollow noreferrer">https://codepen.io/etipirev/pen/aNYNpy?editors=1111</a></p>
  
  <p>as it is seemed it is working in ionic 1, but not in ionic 3? i havent found any event description in ionic docs. is it possible to catch scrolling of list items in ionic 3? </p>