addRightChildNode method
void
addRightChildNode()
add right child node
Implementation
void addRightChildNode() {
MindMapNode node = MindMapNode();
node.setParentNode(this);
node.setTitle("New Node");
addRightItem(node);
getMindMap()?.refresh();
if (!_isLoading) {
getMindMap()?.onChanged();
}
}