public static void evictFromCache(Uri uri) {
        ImagePipeline pipeline = Fresco.getImagePipeline();
        pipeline.evictFromCache(uri);
    }
This class downloads images and returns them as @{link Bitmap} objects
by leveraging the Facebook Fresco image downloading/caching library.
android/viro_bridge/src/main/java/com/viromedia/bridge/utility/ImageDownloader.java