Menu/with Arrow img

// Menu/ToolBar ( with Arrow img )
// https://imgur.com/a/dY1NTXo
// MyApplication.java

package com.mycompany.myapp;

import com.codename1.ui.Display;
import com.codename1.ui.Form;
import com.codename1.ui.Dialog;
import com.codename1.ui.plaf.UIManager;
import com.codename1.ui.util.Resources;
import com.codename1.ui.Command;
import com.codename1.ui.Label;
import com.codename1.ui.Toolbar;
import com.codename1.ui.events.ActionEvent;
import com.codename1.ui.events.ActionListener;
import com.codename1.ui.layouts.BoxLayout;
import com.codename1.ui.util.UIBuilder;

/**
 * This file was generated by <a href="https://www.codenameone.com/">Codename
 * One</a> for the purpose of building native mobile applications using Java.
 */
public class MyApplication {

    private Form current;
    private Resources theme;
    Form f1, f2, f3;
    Command cmd1, cmd2, cmd3, cmdBack;

    public void init(Object context) {
        theme = UIManager.initFirstTheme("/theme");

        // Enable Toolbar on all Forms by default
        Toolbar.setGlobalToolbar(true);

        // Pro only feature, uncomment if you have a pro subscription
        // Log.bindCrashProtection(true);
    }

    public void start() {



       // UIBuilder ui = new UIBuilder();
        Form f1 = new Form(BoxLayout.x());
        f1.add(new Label("Page1"));
        Form f2= new Form(BoxLayout.x());
        f2.add(new Label("Page2"));
        Form f3 = new Form(BoxLayout.x());
        f3.add(new Label("Page3"));
        Form home = new Form(BoxLayout.x());
        home.add(new Label("Home"));


        home.getToolbar().addCommandToSideMenu("Page 1", null, new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent evt) {
         f1.show();
            }
        });


        home.getToolbar().addCommandToSideMenu("Page 2", null, new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent evt) {
         f2.show();
            }
        });

        home.getToolbar().addCommandToSideMenu("Page 3", null, new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent evt) {
         f3.show();
            }
        });



        f1.getToolbar().addCommandToLeftBar("Back", theme.getImage("back-command.png"), new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent evt) {
           home.showBack();

            }
        });

         f2.getToolbar().addCommandToRightBar("Back", theme.getImage("back-command.png"), new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent evt) {
           home.showBack();

            }
        });


          f3.getToolbar().addCommandToOverflowMenu("Back", theme.getImage("back-command.png"), new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent evt) {
           home.showBack();

            }
        });
       home.show();
    }

    public void stop() {
        current = Display.getInstance().getCurrent();
        if (current instanceof Dialog) {
            ((Dialog) current).dispose();
            current = Display.getInstance().getCurrent();
        }
    }

    public void destroy() {
    }

}