/**
* Toggle the selection state of an item.
*
* <p>If the item was the last one in the selection and is unselected, the selection is stopped.
* Note that the selection must already be started (actionMode must not be null).
*
* @param position Position of the item to toggle the selection state
*/
private void toggleSelection(int position) {
chatAdapter.toggleSelection(position);
int count = chatAdapter.getSelectedItemCount();
if (count == 0) {
actionMode.finish();
} else {
actionMode.setTitle(String.valueOf(count));
actionMode.invalidate();
}
}
