play_services_block_store #

A Flutter plugin for accessing the Google Play Services Block Store API on Android. Securely store and retrieve small key-value pairs of data that can survive app uninstall and restore, making it ideal for authentication tokens or device identifiers.

⚠️ Android only. This plugin uses Google Play Services and is not supported on iOS or web.

Features #

• 🔐 Save and retrieve key-value pairs securely.
• 💾 Support for storing both strings and byte arrays (as base64).
• 🔍 Retrieve a single item or all stored items.
• 🗑️ Delete individual keys or clear all stored data.
• 🧩 Easy-to-use Flutter API.

Getting Started #

Installation #

Add this to your pubspec.yaml:

dependencies:
  play_services_block_store: ^<latest_version>

Then run:

flutter pub get

Usage #

import 'package:play_services_block_store/play_services_block_store.dart';

final store = PlayServicesBlockStore();

// Save a string
await store.saveString('username', 'alice');

// Retrieve a string
final username = await store.retrieveString('username');

// Save base64-encoded bytes
final base64Data = base64Encode([1, 2, 3, 4]);
await store.saveBytes('my_bytes', base64Data);

// Retrieve base64-encoded bytes
final encoded = await store.retrieveBytes('my_bytes');

// Retrieve all stored values
final allData = await store.retrieveAll();

// Delete a single key
await store.delete('username');

// Delete all stored data
await store.deleteAll();