There are many ways of keeping user signed-in to a flutter application. In this tutorial we going to use firebase Auth method authStateChanges(). Firebase Auth enables you to subscribe in realtime to this state via a Stream .
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Check if a user has previously logged in getItem(“user”); if (loggedInUser) { const foundUser = JSON. parse(loggedInUser); setUser(foundUser); } }, []); Remember to use an empty dependency array in your useEffect hook so that it checks if there’s a logged in user the first time the app loads.
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