Shared preferences in flutter - error after flutter clear

Question

i try to use shared preferences in flutter but i get this error and i tried to run flutter clear and still getting the same error

the error

ERROR:flutter/lib/ui/ui_dart_state.cc(166)] Unhandled Exception: MissingPluginException(No implementation found for method getAll on channel plugins.flutter.io/shared_preferences)

Does this answer your question? [Flutter Test MissingPluginException](https://stackoverflow.com/questions/44357053/flutter-test-missingpluginexception) — Uroš, Aug 19 '20 at 04:03

Aldy Yuan · Answer 1 · 2020-08-19T04:10:05.250

2

Have you add the SharedPreferences dependecies in pubspec.yaml.If not here's how you do it:

dependencies:
  flutter:
    sdk: flutter
  shared_preferences: ^0.5.8

From the error message I believe SharedPreferences don't have getAll method. Here's some example how you read data from SharedPreferences :

getStringValuesSF() async {
  SharedPreferences prefs = await SharedPreferences.getInstance();
  //Return String
  String stringValue = prefs.getString('stringValue');
  return stringValue;
}
getBoolValuesSF() async {
  SharedPreferences prefs = await SharedPreferences.getInstance();
  //Return bool
  bool boolValue = prefs.getBool('boolValue');
  return boolValue;
}
getIntValuesSF() async {
  SharedPreferences prefs = await SharedPreferences.getInstance();
  //Return int
  int intValue = prefs.getInt('intValue');
  return intValue;
}
getDoubleValuesSF() async {
  SharedPreferences prefs = await SharedPreferences.getInstance();
  //Return double
  double doubleValue = prefs.getDouble('doubleValue');
  return doubleValue;
}

edited Aug 19 '20 at 04:10

answered Aug 19 '20 at 03:55

Aldy Yuan

1,795
9
23

This is a good answer. Can you show him an example of how to add it to pubspec.yaml? – CoderUni Aug 19 '20 at 04:06
@AldyYuan thanks but i have done all of this and still getting the same message error – Eslam Ashraf Aug 19 '20 at 06:08
Can you share your code where you use the SharePreferences – Aldy Yuan Aug 19 '20 at 06:08
final SharedPreferences prefs = await SharedPreferences.getInstance(); prefs.setString('token', responseData['idToken']); prefs.setBool('logged', true); prefs.setString('userEmail', email); – Eslam Ashraf Aug 19 '20 at 11:30
its just like this and i use it when i log in but it does not work and gives me an error – Eslam Ashraf Aug 19 '20 at 11:31

score 0 · Answer 2 · answered Aug 19 '20 at 06:17

0

After you adding a new package. You have to run

flutter pub get

Then rebuild you app.

answered Aug 19 '20 at 06:17

sleepingkit

598
3
8

score 0 · Answer 3 · answered May 25 '21 at 14:23

for my case add setMockInitialValues({}) before sharedPreference.getInstance worked for me

SharedPreferences.setMockInitialValues({});
SharedPreferences sharedPreferences = await SharedPreferences.getInstance();
await sharedPreferences.setString(key, value);

Shared preferences in flutter - error after flutter clear

3 Answers3