If you have a relatively small collection of key-values that you’d like to save, you should use the SharedPreferences Plugin. A SharedPreferences object points to a file containing key-value pairs and provides simple methods to read and write them.

Flutter Shared preferences plugin Wraps NSUserDefaults (on iOS) and SharedPreferences (on Android), providing a persistent store for simple data. Data is persisted to disk automatically and asynchronously.

To use this plugin, add shared_preferences as a dependency in your pubspec.yaml file.

1.Add this to your package’s pubspec.yaml file:

  shared_preferences: "^0.2.4+1"

2. You can install packages from editor ‘packages get’

Shared preferences plugin

3. Import it

import 'package:shared_preferences/shared_preferences.dart';

Write to Shared Preferences

To write to a shared preferences file, create a SharedPreferences by calling getInstance on your SharedPreferences. Pass the keys and values you want to write with methods such as setInt() and setString().For example:

_saveValues() async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    prefs.setString("name", nameController.text);
    prefs.setString("phone", phoneController.text);

Read from Shared Preferences

To retrieve values from a shared preferences file, call methods such as getInt() and getString(), providing the key for the value you want, and optionally a default value to return if the key isn’t present. For example:

getSharedPreferences() async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    nameController.text = prefs.getString("name");
    phoneController.text = prefs.getString("phone");

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