ui = new gui ( 9, "TEST", Material. BLACK_STAINED_GLASS_PANE, player ) ;

ui. setUiItem ( 4, new UiItem (Material. DIAMOND, "name", player, "lore" ) ) ;

ui. setUiItem ( 3, new UiButton (Material. DIAMOND_AXE, "name", player, "lore", getClass ( ). getMethod ( "method", null ), this ) ) ;

public void test ( )
    {
        _player. getInventory ( ). addItem ( new ItemStack (Material. DIAMOND, 1 ) ) ;
    }

List <UiButton > Items = new ArrayList <> ( 2 ) ;
        try {
            Items. add ( 0, new UiButtonCustomDraw (Material. GREEN_TERRACOTTA, "%player_time%", player, "", getClass ( ). getMethod ( "method", null ), this, getClass ( ). getMethod ( "CustomDraww", UiItem. class, int. class ), this, null ) ) ;
            Items. add ( 1, new UiButtonCustomDraw (Material. BLACK_CANDLE, "%player_time%", player, "", getClass ( ). getMethod ( "method", null ), this, getClass ( ). getMethod ( "CustomDraww", UiItem. class, int. class ), this, null ) ) ;
        } catch ( NoSuchMethodException e ) {
            e. printStackTrace ( ) ;
        }
        ui. setUiItem ( 5, new UiButtonList (Material. MAGENTA_TERRACOTTA, "A List", player, "TEST", Items, ui, 2, 5 ) ) ;

public void CustomDraww (UiItem uii, int Slot )
    {
        UiButton Uibutton = (UiButton )uii ;
        if ( Float. parseFloat (PlaceholderAPI. setPlaceholders (_player, "%player_health%" ) ) == 20 )
        {
            Uibutton. SetGlow ( true ) ;
            Uibutton. canTrigger = true ;
        }
        else
        {
            Uibutton. SetGlow ( false ) ;
            Uibutton. canTrigger = false ;
        }

        _ui. setUiItemFromDrawMethod (Slot, Uibutton ) ;
    }