React Native http cache control for both fetch/XMLHttpRequest and ImageView

• [x] iOS
• [x] Android

Installation

$ npm install react-native-http-cache --save

iOS: Linking in your XCode project

• Link react-native-http-cache library from your node_modules/react-native-http-cache/ios folder like its described here. Don't forget to add it to "Build Phases" of project.

Android: Linking to your gradle Project

• Add following lines into android/settings.gradle

include ':RCTHttpCache'
project(':RCTHttpCache').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-http-cache/android')

• Add following lines into your android/app/build.gradle in section dependencies

...
dependencies {
   ...
   compile project(':RCTHttpCache')    // Add this line only.
}

• Add following lines into MainActivity.java

...
import cn.reactnative.httpcache.HttpCachePackage;
      // Add this line before public class MainActivity

public class MainActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        ...
        mReactInstanceManager = ReactInstanceManager.builder()
            .setApplication(getApplication())
            .setBundleAssetName("index.android.bundle")
            .setJSMainModuleName("index.android")
            .addPackage(new MainReactPackage())
            .addPackage(new HttpCachePackage())        // Add this line
            .setUseDeveloperSupport(BuildConfig.DEBUG)
            .setInitialLifecycleState(LifecycleState.RESUMED)
            .build();
    }
}

• Add these lines to 'proguard-rules.pro' if you need to minify your java code:

-keep class com.facebook.cache.disk.DiskStorageCache {
   private boolean maybeUpdateFileCacheSize();
}

JavaScript: import all and invoke!

import * as CacheManager from 'react-native-http-cache';

// invoke API directly when in need
CacheManager.clear();

API Documentation

clear()

Clear cache for all type.

Return a promise which indicate the clear state.

getSize()

Get cache size for all type.

Return a promise that contain the cache size(in bytes).

clearHttpCache()

Clear cache for fetch/ajax only.

Return a promise which indicate the clear state.

getHttpCacheSize()

Get cache size for fetch/ajax only.

Return a promise that contain the cache size(in bytes).

clearImageCache()

Clear cache for ImageView only.

Return a promise which indicate the clear state.

getImageCacheSize()

Get cache size for ImageView only.

Return a promise that contain the cache size(in bytes).

Authors

• Deng Yun from React-Native-CN
• Lv Bingru from React-Native-CN