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Add modular resource fetcher adapters to support both Expo and bare React Native environments. ## New Packages ### @rn-executorch/expo-adapter - Expo-based resource fetcher using expo-file-system - Supports asset bundles, local files, and remote downloads - Download management with pause/resume/cancel capabilities ### @rn-executorch/bare-adapter - Bare React Native resource fetcher using RNFS and background downloader - Supports all platform-specific file operations - Background download support with proper lifecycle management ## Core Changes - Refactor ResourceFetcher to use adapter pattern - Add initExecutorch() and cleanupExecutorch() for adapter management - Export adapter interfaces and utilities - Update LLM controller to support new resource fetching ## App Updates - Update computer-vision, llm, speech-to-text, text-embeddings apps - Add adapter initialization to each app - Update dependencies to use workspace packages
Add a complete bare React Native example app demonstrating LLM integration with react-native-executorch. ## App: llm_bare ### Features - Simple chat UI for LLM interactions - Model loading with progress indicator - Real-time streaming responses - Send/stop generation controls - Auto-scrolling message history ### Stack - **Framework**: React Native 0.81.5 (bare/CLI) - **LLM**: Uses LLAMA3_2_1B_SPINQUANT model - **Adapter**: @rn-executorch/bare-adapter - **Dependencies**: Minimal deps, only essential packages ### Platform Configuration #### iOS - Bridging header for RNBackgroundDownloader - Background URL session handling in AppDelegate - Background modes (fetch, processing) - Xcode project configuration #### Android - Required permissions for background downloads - Foreground service configuration - Network state access - Proper manifest configuration ### Infrastructure - Babel configuration for export namespace transform This serves as a reference implementation for using react-native-executorch in bare React Native environments (non-Expo).
…package.json for bare and expo adapters
…r for better error handling
Add explicit resetAdapter() method to ResourceFetcher class for cleaner API. - Add resetAdapter() static method that sets adapter to null - Update cleanupExecutorch() to use resetAdapter() instead of type assertion hack - Update error message to reference new package names (@react-native-executorch/*) This provides a cleaner, type-safe way to reset the adapter without requiring "null as unknown as ResourceFetcherAdapter" type assertion.
…ecking and cleaning
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