KV Storage SharedPreferences

A Flutter implementation of the `KVStorageService` interface using the `shared_preferences` package for the Flutter News App Toolkit.

This kv_storage_shared_preferences package provides a concrete Flutter implementation of the KVStorageService interface within the Flutter News App Full Source Code Toolkit. It leverages the popular shared_preferences package to offer a persistent key-value storage mechanism suitable for simple data across Android, iOS, Linux, macOS, Web, and Windows platforms. This package wraps the underlying shared_preferences plugin with a defined interface and robust error handling based on the kv_storage_service contract, ensuring consistent and reliable local data management.

⭐ Feature Showcase: Cross-Platform Persistent Storage

This package offers a comprehensive set of features for managing local key-value data using shared_preferences.

🧱 Core Functionality

🚀 KVStorageService Implementation

• KVStorageSharedPreferences Class: A concrete implementation of the KVStorageService interface, providing a standardized way to interact with shared_preferences.
• Cross-Platform Support: Utilizes shared_preferences for underlying storage, supporting Android, iOS, Linux, macOS, Web, and Windows.
• Singleton Access: Provides a convenient singleton pattern (getInstance) for easy and consistent access to the storage instance throughout the application.

🌐 Comprehensive Data Operations

• Read/Write Operations: Implements methods for reading and writing String, bool, int, and double values.
• Data Deletion: Includes methods for deleting specific keys (delete) and clearing all stored data (clearAll).

🛡️ Standardized Error Handling

• Custom StorageException Propagation: Throws specific StorageException subtypes (e.g., StorageWriteException, StorageReadException, StorageTypeMismatchException, StorageInitializationException) as defined in kv_storage_service, ensuring predictable and consistent error management across the application layers.

💉 Interface-Driven Design

• Decoupled Logic: By implementing the KVStorageService interface, this package ensures that application logic remains decoupled from the specific shared_preferences implementation, allowing for future flexibility and testability.

💡 Your Advantage: You get a meticulously designed, production-quality shared_preferences implementation that simplifies local data management, ensures type safety, provides robust error handling, and offers cross-platform compatibility. This package accelerates development by providing a solid foundation for persistent local data storage.

🔑 Licensing

This kv_storage_shared_preferences package is an integral part of the Flutter News App Full Source Code Toolkit. For comprehensive details regarding licensing, including trial and commercial options for the entire toolkit, please refer to the main toolkit organization page.