MediaVariationsFragment.java 文件源码

private void loadMainImage() {
  // Request a non-existent image to force fallback to the variations
  Uri uri = Uri.parse(String.format(URI_TEMPLATE, "full", "jpg"));
  ImageRequest request = ImageRequestBuilder.newBuilderWithSource(uri)
      .setMediaVariations(getMediaVariationsForMode(mMode))
      .setResizeOptions(new ResizeOptions(
          mMainImageDraweeView.getWidth(),
          mMainImageDraweeView.getHeight()))
      .build();

  Log.i(
      TAG,
      request.getMediaVariations() == null ? "null" : request.getMediaVariations().toString());

  setDraweeControllerForRequest(request);
}