title: hammer.js - drag event on ipad not fired continuously
body: <p>Dragging with <code>hammer.js</code> working fine on desktop browsers. Fired continuously till <code>dragEnd</code>. But on iPad it fires only once.</p>
  
  <pre><code>hammer(container).on( 'drag', function (e) {_this.onDragging.call(_this, e);}, false );
  
  //onDragStart we init this.start = e.pageX
  
  onDragging : function (e) { 
  var diff=this.start-e.pageX;
  moveTimeLine(e.pageX);
  this.start=e.pageX;
  }
  </code></pre>
  
  <p>in order to get smooth Dragging of timeline but the Drag event is only fired one time and not continuously.</p>
  
  <p><code>moveTimeLine()</code> moves timeline by specified pixels so it's taking some time to reflect. and ultimately <code>dragging</code> event called only once. Even I do dragging slowly. </p>
  
  <p><strong>Is there any way drag event fires when user move finger on iPad ?????</strong> </p>