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feat: migrate SharedPreferences to SharedPreferencesWithCache and add unit tests#2840

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AbdelrahmanAddel wants to merge 2 commits intoflutter:mainfrom
AbdelrahmanAddel:feature/migrate-shared-prefs-cache-2720
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feat: migrate SharedPreferences to SharedPreferencesWithCache and add unit tests#2840
AbdelrahmanAddel wants to merge 2 commits intoflutter:mainfrom
AbdelrahmanAddel:feature/migrate-shared-prefs-cache-2720

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@AbdelrahmanAddel
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Overview

This PR migrates the deprecated SharedPreferences usage to the modern SharedPreferencesWithCache as recommended by the latest Flutter best practices.

Changes

  • Refactored SharedPreferencesService to use SharedPreferencesWithCache for better performance and synchronous reads.
  • Implemented a static create() factory method to handle asynchronous initialization before runApp.
  • Added comprehensive unit tests for SharedPreferencesService covering token retrieval, storage, and removal.

Testing

  • Ran flutter test test/data/services/shared_preferences_service_test.dart -> All tests passed.
  • Verified authentication flow using the local Dart server.

- Bump `shared_preferences` version from 2.3.5 to 2.5.5 in `pubspec.yaml`.
- Update iOS deployment target from 12.0 to 13.0 in `Podfile`.
- Remove deprecated `MinimumOSVersion` key from `AppFrameworkInfo.plist`.
- Modify `AppDelegate.swift` to support implicit Flutter engine initialization.
- Enhance `Info.plist` with scene configuration and input event support.
- Update Xcode project settings to include new Pods and frameworks.
- Refactor `main_development.dart` and `main_staging.dart` to initialize `SharedPreferencesService` asynchronously.
- Remove direct instantiation of `SharedPreferencesService` from `dependencies.dart`.
- Removed logging setup from `main_development.dart`.
- Eliminated import of `main_staging.dart` in `main.dart`.
- Removed direct import of `SharedPreferencesService` in `dependencies.dart` to enhance modularity.
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google-cla Bot commented May 8, 2026

Thanks for your pull request! It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

View this failed invocation of the CLA check for more information.

For the most up to date status, view the checks section at the bottom of the pull request.

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