title: Ripple Effect gone after adding TapGestureRecognizer to ViewCell
body: <p>I added a custom <code>LongPressGestureRecognizer</code> to the ViewCell's root layout to handle certain cases, but after adding it, I find that the ripple effect when tapping the ViewCell is gone on Android. I tried to add back the animation by getting the native view, set background drawable to <code>Android.Resource.Attribute.SelectableItemBackground</code> by using below code</p>
  
  <pre><code>            int[] attrs = { Android.Resource.Attribute.SelectableItemBackground };
  
              var ta = CrossCurrentActivity.Current.Activity.ObtainStyledAttributes(attrs);
  
              var drawable = ta.GetDrawable(0);
              nativeView.SetBackgroundDrawable(drawable);
              ta.Recycle();
  </code></pre>
  
  <p>Even this doesn't work. Any other way to make it work?</p>