@Override
  public PipelineDraweeControllerBuilder setUri(@Nullable String uriString) {
    if (uriString == null || uriString.isEmpty()) {
      return super.setImageRequest(ImageRequest.fromUri(uriString));
    }
    return setUri(Uri.parse(uriString));
  }
Concrete implementation of ImagePipeline Drawee controller builder.

<p>See {@link AbstractDraweeControllerBuilder} for more details.
drawee-backends/drawee-pipeline/src/main/java/com/facebook/drawee/backends/pipeline/PipelineDraweeControllerBuilder.java