private void setPostprocessor(Postprocessor postprocessor) {
    VitoView.show(
        mUri, ImageOptions.create().postprocess(postprocessor).build(), CALLER_CONTEXT, mImage);
  }
Fragment that illustrates how to use the image pipeline directly in order to create
notifications.
samples/showcase/src/main/java/com/facebook/fresco/samples/showcase/imagepipeline/ImagePipelinePostProcessorFragment.java