text: /*import AppNavigator from '../navigators/AppNavigator';
  
  const nav = (state, action) => {
      let nextState = AppNavigator.router.getStateForAction(action, state);
      return nextState || state;
  };*/
  import {createNavigationReducer} from 'react-navigation-redux-helpers';
  import AppNavigator from '../navigators/AppNavigator';
  
  const nav = createNavigationReducer(AppNavigator);
  
  export default nav;