In my app I have pushed two Evas object in the naviframe.

Currently 2nd one is visible as it is on the top of the naviframe.
I want to go from the 2nd Evas object to the 1st Evas object using Back key.

I am using below, when pressing Back Key it is not working. Naviframe_pop_cb is not calling when I  press Back key.

static Eina_Bool naviframe_pop_cb(void *data, Elm_Object_Item *it)
{
     appdata_s *ad = (appdata_s*) data;

  elm_naviframe_item_pop(ad->Content_view);
  dlog_print(DLOG_DEBUG, "POP", "************POP CB CALLED", NULL);
   return EINA_FALSE;
}


void nocontents_cb(void *data, Evas_Object *obj, void *event_info)
{
    appdata_s *ad = (appdata_s*) data;
    Elm_Object_Item *nfIt;
    ad->Content_view = create_content_view(ad);

    nfIt = elm_naviframe_item_push(ad->label, "Draw Your Pattern", NULL, NULL, ad->Content_view, NULL);
    elm_naviframe_item_pop_cb_set(nfIt, naviframe_pop_cb, ad);


}