Active tab in TabNavigator about redux-helpers HOT 5 CLOSED

I don’t think overriding the default reducer behavior is supported in react-navigation. As far as I understand, there is state outside of the Redux store that gets changed when you navigate. If that’s not it, it might be some of the other actions that occur on navigation (maybe the COMPLETE_TRANSITION one?).

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Interesting - I put a custom redux middleware function in and returned null on COMPLETE_TRANSITION actions but the active tab transition still occurs. I don't see any other NAVIGATION/* actions coming through during the tab nav action.

How would you prevent a user from going to a different tab in the TabNavigator based on some validation (or user input confirmation)?

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tabBarOnPress should work for you.

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https://reactnavigation.org/docs/tab-navigator.html

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Just an update for anyone who finds this issue, my problem was related to using tabBarComponent: ... with this library: https://github.com/timomeh/react-native-material-bottom-navigation#bottomnavigation

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