How to use shared preferences to keep user logged in flutter?

Question

I want to keep the user logged in after the user successfully logsin in flutter. I am using a REST API to retrieve the user name and password of the user. But I want to save

Answer 1

The above answers using SharedPreferences works (make sure you have WidgetsFlutterBinding.ensureInitiazed(); as your first line of main), but it will give you a null on re-start, ie, if you remove the app from recent and re-open it again, it will not re-direct you to the Home or Profile Page. I solved this issue by giving write external storage permission to your app because the shared preferences need to write the data somewhere in your device or emulator.

Just add the write and read external storage permissions in your Android Manifest file and you can use permission_handler plugin for flutter from pub.dev to get the required permissions from user at runtime when the app is opened for the first time and then Shared Preferences won't give you null.