public GenericDraweeHierarchyBuilder setDesiredAspectRatio(float desiredAspectRatio) {
    mDesiredAspectRatio = desiredAspectRatio;
    return this;
  }
Sets the desired aspect ratio.

<p>Note, the hierarchy itself cannot enforce the aspect ratio. This is merely a suggestion to
the view if it supports it.

@param desiredAspectRatio the desired aspect ratio
@return modified instance of this builder
drawee/src/main/java/com/facebook/drawee/generic/GenericDraweeHierarchyBuilder.java