code: @Override
      public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
          SPFPersona persona = (SPFPersona) parent.getItemAtPosition(position);
          if (mCurrentPersona.equals(persona)) {
              return;
          }
  
          mCurrentPersona = persona;
          startLoader(LoadersConfig.LOAD_PROFILE_LOADER_ID);
      }
docs: /*
  ItemSelectListener for Persona spinner in actionbar