React Navigation: Navigate Back To Root using NavigationActions.reset, goBack and getStateForAction

Question

Say I\'ve navigated through 4 screens in my StackNavigator App and now I want to go back to the first screen. There seems to be three different ways to do this and they do n

Answer 1

Also spent some time on this, let me sum up what I discovered, there are multiple solutions/workarounds for this:

1) Use CardStackStyleInterpolator

The pull request mentioned by Cristiano Santos seems to be merged. So you can load the CardStackStyleInterpolator with this import:

import CardStackStyleInterpolator from 'react-navigation/src/views/CardStack/CardStackStyleInterpolator'

To apply it like this:

const YourStackNavigator = StackNavigator({
    Screen1: { screen: Screen1 },
    Screen2: { screen: Screen2 },
}, {
    transitionConfig: () => ({
        screenInterpolator: (props) => CardStackStyleInterpolator.forHorizontal(props)
    })
});

In my case, I just jump to the next screen like:

this.props.navigation.navigate('Modal_AddGoodClass');

But in my reducer, I reset the navigator when the Modal_AddGoodClass screen is triggered:

const NewExportReceiptNavigationReducer = (state, action) => {
    // Default stuff

    let newStateBuffer = newState || state;

    if (action) {
        if (action.type === 'Navigation/NAVIGATE') {
            if (action.routeName === 'Modal_AddGoodClass') {
                newStateBuffer = {
                    index:  0,
                    routes: [
                        newStateBuffer.routes[newStateBuffer.routes.length - 1]
                    ]
                };
            }
        }
    }

    return newStateBuffer;
};

module.exports = NewExportReceiptNavigationReducer;

This works pretty well, except the fact, that still a "back" animation is used instead of a "forward" one.

You can also find here some example code that uses CardStackStyleInterpolator.

2) Overwrite getStateForAction:

As Fendrian mentioned here you can overwrite getStateForAction of your router to avoid the navigator to go back. This seems to work except for the "swipe back" gesture on iOS:

Nav = StackNavigator(navScreens, navOptions);
const defaultGetStateForAction = Nav.router.getStateForAction;
Nav.router.getStateForAction = (action, state) => {
  if (
    state &&
    action.type === NavigationActions.BACK &&
    (
      state.routes[state.index].routeName === 'Login' ||
      state.routes[state.index].routeName === 'Main'
    )
  ) {
    // Returning null indicates stack end, and triggers exit
    return null;
  }
  return defaultGetStateForAction(action, state);
};