MenuItemExtension

Consejo

Añade una nueva opción de menú a la barra de menú.

Constructores

método	Descripción
MenuItemExtension(String imageURL, String text, Command cmd)	MenuItem por defecto.
MenuItemExtension(String imageURL, String text, MenuBar menuBar)	Un menuitem que contiene una barra de menú. Se utiliza normalmente para una entrada de submenú.
MenuItemExtension(String text, MenuBar menuBar)	Se utiliza normalmente para definir el menuItem principal. Es el menú raíz que tiene opciones de menú hijas.

Ejemplo

public class MainMenuExample {
  private MenuItemExtension exampleMenu;
  private MenuBarExtension subMenuExample;
  private MenuBarExtension subMenuExample2;
  private MenuItemExtension subMenuItem;
  private MenuItemExtension option1;
  private MenuItemExtension option2;
  private MenuItemExtension option3;
  private MenuItemExtension option4;

  /**
   * MainMenuExample
   */
  public MainMenuExample() {
    // All menu items
    option1 = new MenuItemExtension("img/box.png", "Option 1", option1Action);
    option2 = new MenuItemExtension("img/box.png", "Option 2", option2Action);
    option3 = new MenuItemExtension("img/box.png", "Option 3", option3Action);
    option4 = new MenuItemExtension("img/box.png", "Option 4", option4Action);

    // Secondary submenu
    subMenuExample2 = new MenuBarExtension();
    subMenuExample2.addItem(option3);
    subMenuExample2.addItem(option4);
    subMenuItem = new MenuItemExtension("img/box.png","Sub menu", subMenuExample2); // is a secondary submenu

    // Principal submenu
    subMenuExample = new MenuBarExtension();
    subMenuExample.addItem(option1);
    subMenuExample.addItem(option2);
    subMenuExample.addItem(subMenuItem);

    // Principal menuitem
    exampleMenu = new MenuItemExtension("New Menu", subMenuExample); // is not a secondary submenu
  }

  public MenuItemExtension getNewMenu() {
    return exampleMenu;
  }

  /**
   * option1Action
   */
  Command option1Action = new Command() {
    public void execute() {
      Window.alert("option1 action");
    }
  };

  /**
   * option2Action
   */
  Command option2Action = new Command() {
    public void execute() {
      Window.alert("option2 action");
    }
  };

  /**
   * option3Action
   */
  Command option3Action = new Command() {
    public void execute() {
      Window.alert("option3 action");
    }
  };

  /**
   * option4Action
   */
  Command option4Action = new Command() {
    public void execute() {
      Window.alert("option4 action");
    }
  };
}