holder.setTransferableProvider(new ElementTransferableProvider(getContext(), e));
e.setHint(sgKey, holder);
holder.setZIndex(parentNode.getNodeCount() + 1);
holder.setTransferableProvider(new ElementTransferableProvider(getContext(), e));
e.setHint(sgKey, holder);
holder.setZIndex(parentNode.getNodeCount() + 1);