menu.java

simple mobile basketball game!It is very good!

package com.linden.pocketbasketball;
import javax.microedition.lcdui.*;

public class Menu extends List implements CommandListener {
    private static final String[] str = {"开始游戏", "选择级别", "游戏说明", "关于"};
    private TestMidletMIDlet parent;
    private Command chooseCommand = new Command("退出", Command.ITEM, 1);
    private Command exitCommand = new Command("选择", Command.EXIT, 2);
    
    public Menu(TestMidletMIDlet parent) {
        super("主菜单", List.IMPLICIT, str, null);
        addCommand(chooseCommand);
        addCommand(exitCommand);
        setCommandListener(this);
        this.parent = parent;
        
    }    
    
    public void commandAction(Command c, Displayable d) {
        if (c == chooseCommand) {
            parent.exitMIDlet();
        }
        else if (c == exitCommand) {
            if (this.getString(this.getSelectedIndex()) == "开始游戏") {
                parent.setCurrent("MainScreen");
            }
            else if (this.getString(this.getSelectedIndex()) == "关于") {
                parent.setCurrent("AboutForm");
            }
            else if (this.getString(this.getSelectedIndex()) == "游戏说明") {
                parent.setCurrent("InstructionsForm");
            }
            else if (this.getString(this.getSelectedIndex()) == "选择级别") {
                parent.setCurrent("ChooseLevel");
            }
            else if (this.getString(this.getSelectedIndex()) == "继续") {
                parent.setCurrent("Continue");
            }
        }
    }
    
    public void addContinue() {
        if (this.getString(0) != "继续") {
            this.insert(0, "继续", null);
            this.setSelectedIndex(0, true);
        }
    }
    
    public void deleteContinue() {
        if (this.getString(0) == "继续") {
            this.delete(0);
        }
    }
    
    
}