The best react native image cache wrapper.
npm install react-native-image-cache-wrapperThe best react native image cache wrapper.
* the same usage with ``` and ``
* can set activity indicator
* cache images with expiration
* clear one cache or all cache files
* support getSize() and prefetch()
* support cache base64 data to local
to handle file system access in this package,`bash
npm install react-native-image-cache-wrapper --save
npm install rn-fetch-blob --save
react-native link rn-fetch-blob
`
or use yarn
``
yarn add react-native-image-cache-wrapper
yarn add rn-fetch-blob
Notice: if you use RN 0.60+, please use rn-fetch-blob v0.10.16
v1.0.7
1. fix Strange error
v1.0.6
1. add static method `CachedImage.isUrlCached(url,success=(cachFile)=>void,fail=(error)=>void))``
2. add static method CachedImage.getCacheFilename(url)``
3. add static property CachedImage.cacheDir`, user can use to set customized cacheDir
v1.0.5
1. fix for RN 0.59
v1.0.4
1. fix Content-Length check
v1.0.3
1. fix file successfully download check
v1.0.2
1. use rn-fetch-blob instead of react-native-fetch-blob
v1.0.0
1. initial release
[[more]](https://github.com/wonday/react-native-image-cache-wrapper/releases)
| Property | Type | Default | Description | FirstRelease |
| ------------- |:-------------:|:----------------:| ------------------- | ------------ |
| `` or `` properties | | | same with `` and `` | 1.0 |
| expiration | number | 604800 | expiration seconds (0:no expiration, default cache a week) | 1.0 |
| activityIndicator | Component | null | when loading show it as an indicator, you can use your component| 1.0 |
`
import CachedImage from 'react-native-image-cache-wrapper';
render()
{
return (
);
}
`
CachedImage.getSize(url, success=(width,height)=>void,fail=(error)=>void)
Get the image size, if no cache, will cache it.
Example:
`
import CachedImage from 'react-native-image-cache-wrapper';
CachedImage.getSize("https://assets-cdn.github.com/images/modules/logos_page/Octocat.png",
(width,height)=>{
console.log("width:"+width+" height:"+height);
},(error)=>{
console.log("error:"+error);
});
`
CachedImage.prefetch(url,expiration=0,success=(cachFile)=>void,fail=(error)=>void)
prefetch an image and cache it.
Example:
`
import CachedImage from 'react-native-image-cache-wrapper';
// prefetch and cache image 3600 seconds
CachedImage.prefetch("https://assets-cdn.github.com/images/modules/logos_page/Octocat.png", 3600,
(cacheFile)=>{
console.log("cache filename:"+cacheFile);
},(error)=>{
console.log("error:"+error);
});
`
CachedImage.deleteCache(url)
delete a cache file.
Example:
`
import CachedImage from 'react-native-image-cache-wrapper';
// prefetch and cache image 3600 seconds
CachedImage.deleteCache("https://assets-cdn.github.com/images/modules/logos_page/Octocat.png");
`
CachedImage.clearCache()
clear all cache.
Example:
`
import CachedImage from 'react-native-image-cache-wrapper';
// prefetch and cache image 3600 seconds
CachedImage.clearCache();
`
CachedImage.isUrlCached(url,success=(cachFile)=>void,fail=(error)=>void))
check if a url is cached.
Example:
`
import CachedImage from 'react-native-image-cache-wrapper';
// check if a url is cached.
CachedImage.isUrlCached(url,(exists)=>{
alert(exists);
});
`
CachedImage.getCacheFilename(url)
make a cache filename.
Example:
`
import CachedImage from 'react-native-image-cache-wrapper';
// check if a url is cached.
let cachedFilename = CachedImage.getCacheFilename(url);
`
CachedImage.cacheDir
the property that can get/set cacheDir
Example:
`
import CachedImage from 'react-native-image-cache-wrapper';
// check if a url is cached.
CachedImage.cacheDir = RNFetchBlob.fs.dirs.CacheDir + "/CachedImage/";
``