react-native-cache-image
A React Native component for caching and efficiently managing web images with automatic storage cleanup.
What is react-native-cache-image?
React Native CacheImage is a React Native component that caches web images locally to improve app performance and reduce network usage. It automatically manages image storage, tracks references, and enforces storage limits to keep cache sizes in check. The component ensures that images are only re-downloaded when their URLs change, typically through versioning in the filename.
React Native developers building mobile apps that display web images and need to optimize loading times and reduce data consumption.
It provides a simple drop-in replacement for the standard Image component with built-in caching logic, eliminating the need for manual cache management and offering automatic storage cleanup based on usage and size limits.
Overview
React Native CacheImage is a component that provides intelligent image caching for React Native applications. It automatically downloads and stores web images locally, reducing network requests and improving performance by serving cached images on subsequent loads.
Key Features
- Automatic Caching — Downloads and stores web images locally, using the cached file if it already exists.
- Reference Counting — Tracks image usage with reference counting, deleting files only when no longer referenced.
- Storage Management — Enforces a configurable total storage limit (default 50MB) and deletes the oldest files when exceeded.
- URL Versioning — Requires image URLs to include version identifiers (e.g.,
image_v1.jpg) to ensure updates are downloaded when changed. - Image Props Compatibility — Supports all standard React Native Image component props for seamless integration.
Philosophy
It prioritizes performance and simplicity by automating cache management, ensuring efficient storage use without manual intervention.
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