[shared_preferences] Add plugin shared_preferences

packages/shared_preferences/shared_preferences_aurora/.gitignore

@@ -0,0 +1,32 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+# Libraries should not include pubspec.lock, per https://dart.dev/guides/libraries/private-files#pubspeclock.
+/pubspec.lock
+**/doc/api/
+.dart_tool/
+.packages
+build/
+.metadata
+run.sh

packages/shared_preferences/shared_preferences_aurora/README.md

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+# shared_preferences_aurora
+
+The Aurora implementation of [`shared_preferences`][https://pub.dev/packages/shared_preferences].
+
+## Usage
+
+This package is not an _endorsed_ implementation of `shared_preferences`. 
+Therefore, you have to include `path_provider_aurora` alongside `shared_preferences` as dependencies in your `pubspec.yaml` file.
+
+**pubspec.yaml**
+
+```yaml
+dependencies:
+  shared_preferences: ^2.1.1
+  shared_preferences_aurora: ^0.0.0 # @todo Not published 
+```
+
+***.dart**
+
+```dart
+import 'package:shared_preferences/shared_preferences.dart';
+
+final SharedPreferences prefs = await SharedPreferences.getInstance();
+
+// Save an integer value to 'counter' key.
+await prefs.setInt('counter', 10);
+// Save an boolean value to 'repeat' key.
+await prefs.setBool('repeat', true);
+// Save an double value to 'decimal' key.
+await prefs.setDouble('decimal', 1.5);
+// Save an String value to 'action' key.
+await prefs.setString('action', 'Start');
+// Save an list of strings to 'items' key.
+await prefs.setStringList('items', <String>['Earth', 'Moon', 'Sun']);
+
+// Try reading data from the 'counter' key. If it doesn't exist, returns null.
+final int? counter = prefs.getInt('counter');
+// Try reading data from the 'repeat' key. If it doesn't exist, returns null.
+final bool? repeat = prefs.getBool('repeat');
+// Try reading data from the 'decimal' key. If it doesn't exist, returns null.
+final double? decimal = prefs.getDouble('decimal');
+// Try reading data from the 'action' key. If it doesn't exist, returns null.
+final String? action = prefs.getString('action');
+// Try reading data from the 'items' key. If it doesn't exist, returns null.
+final List<String>? items = prefs.getStringList('items');
+```

packages/shared_preferences/shared_preferences_aurora/analysis_options.yaml

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+include: package:flutter_lints/flutter.yaml
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

packages/shared_preferences/shared_preferences_aurora/example/.gitignore

@@ -0,0 +1,45 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release
+pubspec.lock

packages/shared_preferences/shared_preferences_aurora/example/README.md

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+# shared_preferences_aurora_example
+
+Demonstrates how to use the shared_preferences_aurora plugin.
+
+## Build
+
+```shell
+# Add an alias if it doesn't already exist
+alias flutter-aurora=$HOME/.local/opt/flutter-sdk/bin/flutter
+# Get dependencies
+flutter-aurora pub get
+# Run build
+flutter-aurora build aurora --release # [--release|--debug|--profile]
+```
+
+You can collect, sign, run an example on the device with a script located in the `script/build_example.sh`
+More information in `build_example.sh`.
+
+### Preview example
+
+![preview.png](../data/preview.png)
+

packages/shared_preferences/shared_preferences_aurora/example/analysis_options.yaml

@@ -0,0 +1,29 @@
+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  # The lint rules applied to this project can be customized in the
+  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+  # included above or to enable additional rules. A list of all available lints
+  # and their documentation is published at
+  # https://dart-lang.github.io/linter/lints/index.html.
+  #
+  # Instead of disabling a lint rule for the entire project in the
+  # section below, it can also be suppressed for a single line of code
+  # or a specific dart file by using the `// ignore: name_of_lint` and
+  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+  # producing the lint.
+  rules:
+    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
+    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

packages/shared_preferences/shared_preferences_aurora/example/aurora/.gitignore

@@ -0,0 +1 @@
+flutter/ephemeral

packages/shared_preferences/shared_preferences_aurora/example/aurora/CMakeLists.txt

@@ -0,0 +1,47 @@
+cmake_minimum_required(VERSION 3.10)
+project(com.example.shared_preferences_aurora_example LANGUAGES CXX)
+
+include(GNUInstallDirs)
+
+set(BINARY_NAME ${CMAKE_PROJECT_NAME})
+set(FLUTTER_DIR ${CMAKE_CURRENT_SOURCE_DIR}/flutter)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+set(CMAKE_CXX_FLAGS "-Wall -Wextra")
+set(CMAKE_CXX_FLAGS_RELEASE "-O3")
+
+set(CMAKE_SKIP_RPATH OFF)
+set(CMAKE_INSTALL_RPATH "\$ORIGIN/../share/${BINARY_NAME}/lib")
+
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(FlutterEmbedder REQUIRED IMPORTED_TARGET flutter-embedder)
+
+add_executable(${BINARY_NAME} main.cpp ${FLUTTER_DIR}/generated_plugin_registrant.cpp)
+target_link_libraries(${BINARY_NAME} PRIVATE PkgConfig::FlutterEmbedder)
+target_include_directories(${BINARY_NAME} PRIVATE ${FLUTTER_DIR})
+
+include(flutter/generated_plugins.cmake)
+
+set(PACKAGE_INSTALL_DIR    ${CMAKE_INSTALL_DATADIR}/${BINARY_NAME})
+set(DESKTOP_INSTALL_DIR    ${CMAKE_INSTALL_DATADIR}/applications)
+set(ICONS_INSTALL_ROOT_DIR ${CMAKE_INSTALL_DATADIR}/icons/hicolor)
+
+add_custom_command(TARGET ${BINARY_NAME} POST_BUILD
+                   COMMAND ${CMAKE_COMMAND} -E copy
+                   ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/libflutter-embedder.so
+                   ${PROJECT_BINARY_DIR}/bundle/lib/libflutter-embedder.so)
+
+install(FILES     ${PROJECT_BINARY_DIR}/bundle/icudtl.dat     DESTINATION ${PACKAGE_INSTALL_DIR})
+install(DIRECTORY ${PROJECT_BINARY_DIR}/bundle/flutter_assets DESTINATION ${PACKAGE_INSTALL_DIR})
+install(DIRECTORY ${PROJECT_BINARY_DIR}/bundle/lib            DESTINATION ${PACKAGE_INSTALL_DIR})
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+install(FILES desktop/${BINARY_NAME}.desktop DESTINATION ${DESKTOP_INSTALL_DIR})
+
+foreach(ICONS_SIZE 86x86 108x108 128x128 172x172)
+    install(FILES icons/${ICONS_SIZE}.png
+            RENAME ${BINARY_NAME}.png
+            DESTINATION ${ICONS_INSTALL_ROOT_DIR}/${ICONS_SIZE}/apps/)
+endforeach(ICONS_SIZE)

packages/shared_preferences/shared_preferences_aurora/example/aurora/desktop/com.example.shared_preferences_aurora_example.desktop

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+[Desktop Entry]
+Type=Application
+Name=shared_preferences_aurora_example
+Comment=Demonstrates how to use the shared_preferences_aurora plugin.
+Icon=com.example.shared_preferences_aurora_example
+Exec=/usr/bin/com.example.shared_preferences_aurora_example
+X-Nemo-Application-Type=silica-qt5
+
+[X-Application]
+Permissions=
+OrganizationName=com.example
+ApplicationName=shared_preferences_aurora_example

packages/shared_preferences/shared_preferences_aurora/example/aurora/flutter/generated_plugin_registrant.cpp

@@ -0,0 +1,16 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include <flutter/application.h>
+#include <path_provider_aurora/path_provider_aurora_plugin.h>
+
+#include "generated_plugin_registrant.h"
+
+void RegisterPlugins() {
+    Application::RegisterPlugins({
+        std::make_shared<PathProviderAuroraPlugin>(),
+    });
+}

packages/shared_preferences/shared_preferences_aurora/example/aurora/flutter/generated_plugin_registrant.h

@@ -0,0 +1,12 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GENERATED_PLUGIN_REGISTRANT
+#define GENERATED_PLUGIN_REGISTRANT
+
+void RegisterPlugins();
+
+#endif /* GENERATED_PLUGIN_REGISTRANT */

packages/shared_preferences/shared_preferences_aurora/example/aurora/flutter/generated_plugins.cmake

@@ -0,0 +1,32 @@
+#
+# Generated file, do not edit.
+#
+set(ROOT_PROJECT_BINARY_DIR "${PROJECT_BINARY_DIR}")
+
+function(add_library TARGET)
+    _add_library(${TARGET} ${ARGN})
+
+    if(NOT "${TARGET}" MATCHES "^PkgConfig::.*")
+      add_custom_command(TARGET ${TARGET} POST_BUILD
+                        COMMAND ${CMAKE_COMMAND} -E copy
+                        "$<TARGET_FILE:${TARGET}>"
+                        "${ROOT_PROJECT_BINARY_DIR}/bundle/lib/$<TARGET_FILE_NAME:${TARGET}>")
+    endif(NOT "${TARGET}" MATCHES "^PkgConfig::.*")
+endfunction()
+
+list(APPEND FLUTTER_PLATFORM_PLUGIN_LIST
+    path_provider_aurora
+)
+
+list(APPEND FLUTTER_FFI_PLUGIN_LIST
+    xdga_directories
+)
+
+foreach(PLUGIN ${FLUTTER_PLATFORM_PLUGIN_LIST})
+    add_subdirectory(flutter/ephemeral/.plugin_symlinks/${PLUGIN}/aurora plugins/${PLUGIN})
+    target_link_libraries(${BINARY_NAME} PRIVATE ${PLUGIN}_platform_plugin)
+endforeach(PLUGIN)
+
+foreach(FFI_PLUGIN ${FLUTTER_FFI_PLUGIN_LIST})
+    add_subdirectory(flutter/ephemeral/.plugin_symlinks/${FFI_PLUGIN}/aurora plugins/${FFI_PLUGIN})
+endforeach(FFI_PLUGIN)

packages/shared_preferences/shared_preferences_aurora/example/aurora/main.cpp

@@ -0,0 +1,10 @@
+#include <flutter/application.h>
+#include "generated_plugin_registrant.h"
+
+int main(int argc, char *argv[]) {
+    Application::Initialize(argc, argv);
+    Application::SetPixelRatio(1.8);
+    RegisterPlugins();
+    Application::Launch();
+    return 0;
+}

packages/shared_preferences/shared_preferences_aurora/example/aurora/rpm/com.example.shared_preferences_aurora_example.spec

@@ -0,0 +1,31 @@
+%global __provides_exclude_from ^%{_datadir}/%{name}/lib/.*$
+%global __requires_exclude ^lib(dconf|flutter-embedder|maliit-glib|appmanifest-.+|.+_platform_plugin)\\.so.*$
+
+Name: com.example.shared_preferences_aurora_example
+Summary: Demonstrates how to use the shared_preferences_aurora plugin.
+Version: 0.1.0
+Release: 1
+License: Proprietary
+Source0: %{name}-%{version}.tar.zst
+
+BuildRequires: cmake
+BuildRequires: pkgconfig(flutter-embedder)
+
+%description
+%{summary}.
+
+%prep
+%autosetup
+
+%build
+%cmake -DCMAKE_BUILD_TYPE=%{_flutter_build_type}
+%make_build
+
+%install
+%make_install
+
+%files
+%{_bindir}/%{name}
+%{_datadir}/%{name}/*
+%{_datadir}/applications/%{name}.desktop
+%{_datadir}/icons/hicolor/*/apps/%{name}.png

packages/shared_preferences/shared_preferences_aurora/example/lib/main.dart

@@ -0,0 +1,199 @@
+import 'package:flutter/material.dart';
+import 'dart:async';
+
+import 'package:flutter/services.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+void main() {
+  runApp(const MyApp());
+}
+
+class MyApp extends StatefulWidget {
+  const MyApp({super.key});
+
+  @override
+  State<MyApp> createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> {
+  int? _counter;
+  bool? _repeat;
+  double? _decimal;
+  String? _action;
+  List<String>? _items;
+  String? _error;
+
+  @override
+  void initState() {
+    super.initState();
+    initPlatformState();
+  }
+
+  Future<void> initPlatformState() async {
+    try {
+      SharedPreferences.setPrefix("my_prefix.");
+
+      final SharedPreferences prefs = await SharedPreferences.getInstance();
+
+      // Save an integer value to 'counter' key.
+      await prefs.setInt('counter', 10);
+      // Save an boolean value to 'repeat' key.
+      await prefs.setBool('repeat', true);
+      // Save an double value to 'decimal' key.
+      await prefs.setDouble('decimal', 1.5);
+      // Save an String value to 'action' key.
+      await prefs.setString('action', 'Start');
+      // Save an list of strings to 'items' key.
+      await prefs.setStringList('items', <String>['Earth', 'Moon', 'Sun']);
+
+      // Try reading data from the 'counter' key. If it doesn't exist, returns null.
+      final int? counter = prefs.getInt('counter');
+      // Try reading data from the 'repeat' key. If it doesn't exist, returns null.
+      final bool? repeat = prefs.getBool('repeat');
+      // Try reading data from the 'decimal' key. If it doesn't exist, returns null.
+      final double? decimal = prefs.getDouble('decimal');
+      // Try reading data from the 'action' key. If it doesn't exist, returns null.
+      final String? action = prefs.getString('action');
+      // Try reading data from the 'items' key. If it doesn't exist, returns null.
+      final List<String>? items = prefs.getStringList('items');
+
+      setState(() {
+        _counter = counter;
+        _repeat = repeat;
+        _decimal = decimal;
+        _action = action;
+        _items = items;
+      });
+    } on PlatformException {
+      setState(() {
+        _error = 'Platform exception';
+      });
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    const textStyleWhite = TextStyle(fontSize: 18, color: Colors.white);
+    const textStyleTitle = TextStyle(fontSize: 20, color: Colors.black);
+    const textStylePath = TextStyle(fontSize: 18, color: Colors.black54);
+
+    const spaceMedium = SizedBox(height: 20);
+    const spaceSmall = SizedBox(height: 10);
+
+    return MaterialApp(
+      home: Scaffold(
+        appBar: AppBar(
+          title: const Text('Example shared_preferences'),
+        ),
+        body: Stack(
+          children: [
+            // Error message
+            Visibility(
+              visible: _error != null,
+              child: Center(
+                child: Padding(
+                  padding: const EdgeInsets.all(16),
+                  child: Container(
+                    padding: const EdgeInsets.all(20),
+                    decoration: const BoxDecoration(
+                      color: Colors.redAccent,
+                      borderRadius: BorderRadius.all(Radius.circular(10.0)),
+                    ),
+                    child: Text(
+                      _error ?? '',
+                      style: textStyleWhite,
+                    ),
+                  ),
+                ),
+              ),
+            ),
+            // List directories path
+            Visibility(
+              visible: _error == null,
+              child: SingleChildScrollView(
+                child: Padding(
+                  padding: const EdgeInsets.all(16),
+                  child: Center(
+                    child: Column(
+                      children: [
+                        // Info
+                        Container(
+                          padding: const EdgeInsets.all(20),
+                          decoration: const BoxDecoration(
+                            color: Colors.green,
+                            borderRadius:
+                                BorderRadius.all(Radius.circular(10.0)),
+                          ),
+                          child: const Text(
+                            'Demo application demonstration implementation of shared_preferences',
+                            style: textStyleWhite,
+                            textAlign: TextAlign.center,
+                          ),
+                        ),
+                        const SizedBox(height: 30),
+
+                        const Text(
+                          'Counter / int',
+                          style: textStyleTitle,
+                        ),
+                        spaceSmall,
+                        Text(
+                          _counter.toString(),
+                          style: textStylePath,
+                        ),
+
+                        spaceMedium,
+                        const Text(
+                          'Repeat / bool',
+                          style: textStyleTitle,
+                        ),
+                        spaceSmall,
+                        Text(
+                          _repeat.toString(),
+                          style: textStylePath,
+                        ),
+
+                        spaceMedium,
+                        const Text(
+                          'Decimal / double',
+                          style: textStyleTitle,
+                        ),
+                        spaceSmall,
+                        Text(
+                          _decimal.toString(),
+                          style: textStylePath,
+                        ),
+
+                        spaceMedium,
+                        const Text(
+                          'Action / String',
+                          style: textStyleTitle,
+                        ),
+                        spaceSmall,
+                        Text(
+                          _action.toString(),
+                          style: textStylePath,
+                        ),
+
+                        spaceMedium,
+                        const Text(
+                          'Items / String List',
+                          style: textStyleTitle,
+                        ),
+                        spaceSmall,
+                        Text(
+                          _items.toString(),
+                          style: textStylePath,
+                        ),
+                      ],
+                    ),
+                  ),
+                ),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

packages/shared_preferences/shared_preferences_aurora/example/pubspec.yaml

@@ -0,0 +1,23 @@
+name: shared_preferences_aurora_example
+description: Demonstrates how to use the shared_preferences_aurora plugin.
+
+publish_to: 'none'
+
+environment:
+  sdk: '>=2.18.6 <3.0.0'
+
+dependencies:
+  flutter:
+    sdk: flutter
+  shared_preferences: ^2.1.1
+  shared_preferences_aurora:
+    path: ../
+  cupertino_icons: ^1.0.2
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  flutter_lints: ^2.0.0
+
+flutter:
+  uses-material-design: true

packages/shared_preferences/shared_preferences_aurora/example/test/widget_test.dart

@@ -0,0 +1,27 @@
+// This is a basic Flutter widget test.
+//
+// To perform an interaction with a widget in your test, use the WidgetTester
+// utility in the flutter_test package. For example, you can send tap and scroll
+// gestures. You can also use WidgetTester to find child widgets in the widget
+// tree, read text, and verify that the values of widget properties are correct.
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+import 'package:shared_preferences_aurora_example/main.dart';
+
+void main() {
+  testWidgets('Verify Platform version', (WidgetTester tester) async {
+    // Build our app and trigger a frame.
+    await tester.pumpWidget(const MyApp());
+
+    // Verify that platform version is retrieved.
+    expect(
+      find.byWidgetPredicate(
+        (Widget widget) => widget is Text &&
+                           widget.data!.startsWith('Running on:'),
+      ),
+      findsOneWidget,
+    );
+  });
+}

packages/shared_preferences/shared_preferences_aurora/lib/shared_preferences_aurora.dart

@@ -0,0 +1,52 @@
+import 'package:flutter/services.dart';
+import 'package:path_provider_aurora/path_provider_aurora.dart';
+import 'package:shared_preferences_aurora/shared_preferences_aurora_api.dart';
+import 'package:shared_preferences_platform_interface/shared_preferences_platform_interface.dart';
+import 'package:flutter/foundation.dart';
+
+class SharedPreferencesAurora extends SharedPreferencesStorePlatform {
+  /// Registers this class as the default instance of [SharedPreferencesStorePlatform].
+  static void registerWith() {
+    if (TargetPlatform.aurora == defaultTargetPlatform) {
+      PathProviderAurora.registerWith();
+      SharedPreferencesStorePlatform.instance = SharedPreferencesAurora();
+    }
+  }
+
+  static const String _defaultPrefix = 'flutter.';
+
+  final SharedPreferencesAuroraApi _api =
+      SharedPreferencesAuroraApi('.flutter_shared_preferences.json');
+
+  @override
+  Future<bool> setValue(String valueType, String key, Object value) async {
+    switch (valueType) {
+      case 'String':
+      case 'Bool':
+      case 'Int':
+      case 'Double':
+      case 'StringList':
+        return _api.setData(key, value);
+    }
+    throw PlatformException(
+        code: 'InvalidOperation',
+        message: '"$valueType" is not a supported type.');
+  }
+
+  @override
+  Future<bool> remove(String key) async => _api.remove(key);
+
+  @override
+  Future<bool> clear() => clearWithPrefix(_defaultPrefix);
+
+  @override
+  Future<Map<String, Object>> getAll() => getAllWithPrefix(_defaultPrefix);
+
+  @override
+  Future<bool> clearWithPrefix(String prefix) async =>
+      _api.clearWithPrefix(prefix);
+
+  @override
+  Future<Map<String, Object>> getAllWithPrefix(String prefix) async =>
+      (await _api.getAllWithPrefix(prefix)).cast();
+}

packages/shared_preferences/shared_preferences_aurora/lib/shared_preferences_aurora_api.dart

@@ -0,0 +1,72 @@
+import 'dart:convert';
+import 'dart:io';
+import 'package:path/path.dart' as p;
+import 'package:path_provider/path_provider.dart';
+
+class SharedPreferencesAuroraApi {
+  final JsonDecoder decoder = const JsonDecoder();
+  final String fileName;
+
+  SharedPreferencesAuroraApi(this.fileName);
+
+  /// Remove all data by prifix
+  Future<bool> clearWithPrefix(String prefix) async {
+    final map = await _read();
+    final filtered = {
+      for (final key in map.keys)
+        if (!key.startsWith(prefix)) key: map[key]
+    };
+    await _save(filtered);
+    return true;
+  }
+
+  /// Get all data by prifix
+  Future<Map<Object?, Object?>> getAllWithPrefix(String prefix) async {
+    final map = await _read();
+    return {
+      for (final key in map.keys)
+        if (key.startsWith(prefix)) key: map[key]
+    };
+  }
+
+  /// Remove one value
+  Future<bool> remove(String key) async {
+    final map = await _read();
+    if (map.containsKey(key)) {
+      map.remove(key);
+      await _save(map);
+      return true;
+    }
+    return false;
+  }
+
+  /// Add value and save data
+  Future<bool> setData(String key, dynamic value) async {
+    final map = await _read();
+    map[key] = value;
+    await _save(map);
+    return true;
+  }
+
+  /// Get file with data
+  Future<File> _getFile() async {
+    return File(p.join(
+      (await getTemporaryDirectory()).path,
+      fileName,
+    )).create(recursive: true);
+  }
+
+  /// Read file
+  Future<Map<String, dynamic>> _read() async {
+    final file = await _getFile();
+    final value = await file.readAsString();
+    return value.isEmpty ? {} : decoder.convert(value);
+  }
+
+  /// Save data to file
+  Future<void> _save(Map<String, dynamic> data) async {
+    final file = await _getFile();
+    final value = json.encode(data);
+    await file.writeAsString(value);
+  }
+}

packages/shared_preferences/shared_preferences_aurora/pubspec.yaml

@@ -0,0 +1,30 @@
+name: shared_preferences_aurora
+description: The Aurora OS implementation of shared_preferences.
+version: 0.0.1
+homepage:
+
+environment:
+  sdk: '>=2.18.6 <3.0.0'
+  flutter: ">=2.5.0"
+
+dependencies:
+  flutter:
+    sdk: flutter
+  plugin_platform_interface: ^2.0.2
+  shared_preferences: ^2.1.1
+  shared_preferences_platform_interface: ^2.2.0
+  path: ^1.8.2
+  path_provider: ^2.0.14
+  path_provider_aurora:
+    path: ../../path_provider/path_provider_aurora
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  flutter_lints: ^2.0.0
+
+flutter:
+  plugin:
+    platforms:
+      aurora:
+        dartPluginClass: SharedPreferencesAurora