@Override public boolean onContextItemSelected(MenuItem item) { AdapterView.AdapterContextMenuInfo menuInfo = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo(); long id = menuInfo.id; if (item.getItemId() == R.id.context_menu_collapse) { mTreeStateManager.collapseChildren(id); return true; } else if (item.getItemId() == R.id.context_menu_expand_all) { mTreeStateManager.expandEverythingBelow(id); return true; } else if (item.getItemId() == R.id.context_menu_expand_item) { mTreeStateManager.expandDirectChildren(id); return true; } else if (item.getItemId() == R.id.context_menu_delete) { mTreeStateManager.removeNodeRecursively(id); return true; } else { return super.onContextItemSelected(item); } }
private void collapseAll() { if (mTreeStateManager != null) mTreeStateManager.collapseChildren(null); }