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

• [x] iOS
• [x] Android

Installation

$ npm install react-native-http-cache2 --save

iOS: Linking in your XCode project

• Link react-native-http-cache2 library from your node_modules/react-native-http-cache2/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-cache2/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 MainApplication.java

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

public class MainApplication extends Application implements ReactApplication {

  private final ReactNativeHost mReactNativeHost = new ReactNativeHost(this) {
    @Override
    protected boolean getUseDeveloperSupport() {
      return BuildConfig.DEBUG;
    }

    @Override
    protected List<ReactPackage> getPackages() {
      return Arrays.<ReactPackage>asList(
          new HttpCachePackage(), // Add this line
          new MainReactPackage()
      );
    }
  };

  @Override
  public ReactNativeHost getReactNativeHost() {
      return mReactNativeHost;
  }
}

• 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-cache2';

// 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