public static <INFO> ForwardingControllerListener<INFO> of(
      ControllerListener<? super INFO> listener) {
    ForwardingControllerListener<INFO> forwarder = create();
    forwarder.addListener(listener);
    return forwarder;
  }
Listener that forwards controller events to multiple listeners.
drawee/src/main/java/com/facebook/drawee/controller/ForwardingControllerListener.java