How to reset TabNavigator when user logs out (from other screen)

Question

Here is my project file hierarchy

RootTabNavigator
    | AuthStackNavigator // I want to go back to this navigator
          | AuthoScreen
    | Welcome Scre         


        

Answer 1

You can define custom navigation logic by extending the router. To accomplish what you want that you described in the project file hierarchy in your question you can do something like this below.

MainTabNavigator.js

...

RootTabNavigator.router.getStateForAction = (action, state) => {
  if (state && action.type === 'GoToAuthScreen') {
    return {
      ...state,
      index: 0,
    };
  }

  return RootTabNavigator.router.getStateForAction(action, state);
};

MainTabNavigator.router.getStateForAction = (action, state) => {
  if (state && action.type === 'GoToAuthScreen') {
    return {
      ...state,
      index: 0,
    };
  }

  return MainTabNavigator.router.getStateForAction(action, state);
};

MenuStackNavigator.router.getStateForAction = (action, state) => {
  if (state && action.type === 'GoToAuthScreen') {
    return {
      ...state,
      index: 0,
    };
  }

  return MenuStackNavigator.router.getStateForAction(action, state);
};

In the Menuo Screen file

componentWillReceiveProps(nextProps) {
  if ( nextProps.token == undefined || _.isNil(nextProps.token) ) {
    const goToAuthScreen = () => ({
      type: 'GoToAuthScreen',
    });

    nextProps.navigation.dispatch(goToAuthScreen);
    ...
  }
}