code: public void add(final View view, final ViewGroup parent) {
          add(view, parent, parent.getChildCount());
      }
docs: Adds a view to the specified parent (adding it to the end of the child list in that
  parent, equivalent to calling addView(view)) and then fades in the view. The view must
  not currently be parented - if its parent is not null, the method returns without
  doing anything.
  
  @param view   The view to be added
  @param parent The parent to which the view is added