private void sortBySelectedMode() {
        gatherDrawables();
        applyFilterOptions();
        
        switch (sortSelectBox.getSelectedIndex()) {
            case 0:
                sortDrawablesAZ();
                break;
            case 1:
                sortDrawablesZA();
                break;
            case 2:
                sortDrawablesOldest();
                break;
            case 3:
                sortDrawablesNewest();
                break;
        }
    }
Sorts by selected sort order and populates the list.
core/src/com/ray3k/skincomposer/dialog/DialogDrawables.java