websafe_shared_prefs

Description:

websafe shared prefs

websafe_shared_prefs #
Wraps the shared_preferences plugin to ask for
consent under web.
##Warning
I can't guarantee that this package is DSVGO conform, i just tried to simplify this workflow.
Please ensure yourself it's working for your app in your intended way.
Usage #
To use this package,add websafe_shared_prefs as a dependency in your pubspec.yaml file.
Initialization #
use SafePreferences().init() to read from storage if consent is already given.
with SafePreferences().init(onError: _onError) an additional error callback can be set
Example #
import 'package:flutter/material.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:websafe_shared_prefs/websafe_shared_prefs.dart';

void main() {
SafePreferences().init();
runApp(MaterialApp(
home: Scaffold(
body: Column(
children: [
Center(
child: RaisedButton(
onPressed: _incrementCounter,
child: Text('Increment Counter'),
),
),
RaisedButton(
onPressed: SafePreferences().allow(),
child: Text('Allow'),
),
]
),
),
));
}

_incrementCounter() async {
SharedPreferences prefs = await SafePreferences().getInstance();
int counter = (prefs.getInt('counter') ?? 0) + 1;
print('Pressed $counter times.');
await prefs.setInt('counter', counter);
}
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Use SafePreferences().getInstance() to get the SharedPreferencs instance instead.
This will make no changes to usage under mobile, but under web it will result in throwing a
StorageNotAllowedException by default.
You can use SafePreferences().allow() to allow SafePreferences to return SharedPreferences.
A full example is provided under examples/lib. It's a variant of the SharedPreferences example.
Listen to allow changes #
SafePreferences().allow is a ValueNotifier, so its Listenable
Also you can define an callback in as: SafePreferences().allow(callback: callback)
CookieBanner #
The package provides a really simple banner to ask for consent CookieBanner.
You can edit the text by providing the parameter text : CookieBanner(text: 'Hello World')