CODEWITHSUNDEEP
flutterdartsharedpreferences
Lance Olana
Lance Olana

Reputation: 241

Disadvantage of using Shared Preferences in Flutter

I am new to Flutter. Is it okay to store data like users credentials (username and password) using Shared Preferences package? What is the disadvantage of using Shared Preferences to hold and pass data between multiple screens in Flutter?

Upvotes: 0

Views: 1383

Answers (4)

nvoigt
nvoigt

Reputation: 77334

SharedPreferences should be used to persist data. So you can still read it, after the app was closed and opened again.

If you want to access data in different parts of your application, you should use a state management (see documentation) solution. While you can technically misuse shared preferences for this, it's not the right tool for the job. And as it happens when using the wrong tool for the job, it will come with all sorts of strange side-effects and problems, that using the right tool for the job will not have.

Some state management solutions even come with their own take on how to persist the state.

Upvotes: 0

nagendra nag
nagendra nag

Reputation: 1332

For storing secure data you can use the flutter_secure_storage package.

go through this article once.

Upvotes: 1

Ankit Kumar Maurya
Ankit Kumar Maurya

Reputation: 1217

Not answering in the way like "disadvantage of using shared preference". Shared preferences is stored in the data folder which could be read by the user only if the user is using the rooted device which gives access to that directory.

Upvotes: 1

Shanu
Shanu

Reputation: 657

You better store data that shows whether the user is authenticated or user login id.

SharedPreferences is mostly used to store small amount (2048 bytes) of data.

I don't think it's an efficient way to store data in shared preference just for accessing from different pages. Consider using a common class or state management tools like provider

Upvotes: 2

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