@Override
    protected DataFetcher<InputStream> getAssetPathFetcher(Context context, String assetPath) {
        return new StreamAssetPathFetcher(context.getApplicationContext().getAssets(), assetPath);
    }
THe default factory for {@link StreamUriLoader}s.
core/src/main/java/com/bumptech/glide/load/model/stream/StreamUriLoader.java