remove all items
connect adapter change handler
disconnect adapter change handler
returns integer item id by index (if supported)
return list item's state flags
returns string item id by index (if supported)
return list item widget by item index
called when theme is changed
reset one or more list item's state flags, returns updated state
set one or more list item's state flags, returns updated state
returns number of widgets in list
return true to receive keyboard events
return true to receive mouse events
list widget adapter provides items for list widgets