setscreen.java

这是用j2me写的手机游戏流程控制的基本框架demo

package lckz;

import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.Gauge;
import javax.microedition.lcdui.TextField;

public class SetScreen extends Form implements CommandListener 
{
    private static Displayable instance;
    synchronized public static Displayable getInstance()
    {
    	if(instance==null)
    	{
    		instance=new SetScreen();
    	}
    	return instance;
    }
    TextField url;
    Gauge volume;
    private SetScreen()
    {
    	super("设定");
    	url=new TextField("请输入服务器位置","socket://192.168.0.1",40,TextField.URL);
    	append(url);
    	volume =new Gauge("音量",true,10,3);
    	append(volume);
        addCommand(new Command("辅助说明",Command.HELP,1));
    	addCommand(new Command("返回",Command.BACK,1));
    	setCommandListener(this);
    }
	public void commandAction(Command c, Displayable d)
	{
		// TODO 自动生成方法存根
        Navigator.flow(c.getLabel());
	}

}