SpinList Sample
import totalcross.sys.InvalidNumberException;
import totalcross.sys.Settings;
import totalcross.ui.Container;
import totalcross.ui.MainWindow;
import totalcross.ui.SpinList;
import totalcross.ui.gfx.Color;
import totalcross.util.UnitsConverter;
​
public class SpinListSample extends MainWindow {
​
    int gap = UnitsConverter.toPixels(DP + 8);
​
    public SpinListSample(){
        setUIStyle(Settings.MATERIAL_UI);
    }
​
    @Override
    public void initUI() {
        try {
            SpinList sl = new SpinList(new String[]{"Blue", "Orange","Yelow", "Red"});
            sl.allowsNoneSelected = true;
            add(sl, LEFT + gap, TOP + gap, FILL, PREFERRED);
​
            Container paintContainer = new Container();
            add(paintContainer, SAME, AFTER + gap, FILL - gap, FILL - gap);
​
​
            sl.addPressListener(e -> {
                switch (sl.getSelectedIndex()){
                    case -1:
                        paintContainer.setBackColor(Color.WHITE);
                        break;
                    case 0:
                        paintContainer.setBackColor(Color.BLUE);
                        break;
                    case 1:
                        paintContainer.setBackColor(Color.ORANGE);
                        break;
                    case 2:
                        paintContainer.setBackColor(Color.YELLOW);
                        break;
                    case 3:
                        paintContainer.setBackColor(Color.RED);
                        break;
                }
            });
​
        } catch (InvalidNumberException e) {
            e.printStackTrace();
        }
    }
}