setscreen.java

来自「手机Java开发教材的源代码：1.商用建构流程(WTK104)」· Java 代码 · 共 30 行

import javax.microedition.lcdui.* ;
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://192.168.0.3:99",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 s)
	{
		Navigator.flow(c.getLabel()) ;
	}
}