-    public void onAttach(Activity activity) {
-        super.onAttach(activity);
-        if (!(activity instanceof OnTouchListener)) {
-            throw new ClassCastException(activity.toString() + 
-                    " must implement " + OnTouchListener.class.getSimpleName());
-        }
-    }
-    
-    
-    /**
-     * {@inheritDoc}
-     */
-    @Override