addAll method
Add all the children to the end of this render object's child list.
Implementation
void addAll(KeyType key, List<ChildType>? children) {
children?.forEach((e) => add(key, e));
}
Add all the children to the end of this render object's child list.
void addAll(KeyType key, List<ChildType>? children) {
children?.forEach((e) => add(key, e));
}