getListModel
public HierarchyListItem getListModel(android.widget.BaseAdapter callback,
long actions,
HierarchyListFilter filter)
Returns the model that may be used to build a UI to interact with the overlay. The returned
item represents the root node to be displayed in the list. If null
, the overlay
will not appear in the list.
- Specified by:
getListModel
in interface MapOverlay2
- Overrides:
getListModel
in class DefaultMapGroupOverlay
- Parameters:
callback
- A reference to the adapter that will be responsible for displaying the list.
The overlay may invoke BaseAdapter.notifyDataSetChanged()
if the list content is externally modified and the adapter should update.
filter
- The preferred filter to be used when constructing the list view.
This argument is a hint and may be ignored in the event that executing the
specified filter will compromise performance. A filter with an ascending alphabetic sort is
recommended as the default.
- Returns:
- The list model used to build the UI for the overlay or
null
if the
overlay should not be included in the list.