insertContent method

void insertContent(
  1. RuntimeObject contentObj,
  2. int index
)

Implementation

void insertContent(RuntimeObject contentObj, int index) {
  content.insert(index, contentObj);
  if (contentObj.parent != null) {
    throw Exception('content is already in ${contentObj.parent}');
  }
  contentObj.parent = this;
  tryAddNamedContent(contentObj);
}