command_ui.java

J2ME移动设备程序设计代码 是头几张的 代码 等

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

public class Command_UI extends MIDlet implements CommandListener{
		private Display display;
		TextBox tb;
		Command cmd_back;
		Command cmd_buy;
		Command cmd_Info;
		
		public Command_UI(){
			display = Display.getDisplay(this);
			tb= new TextBox("Check Colors of the Device","Check Color",50,0);
			cmd_back=new Command("BACK",Command.BACK,1);
			cmd_buy = new Command("Buy",Command.ITEM,1);
			cmd_Info= new Command("Info",Command.ITEM,1);
			tb.addCommand(cmd_back);
			tb.addCommand(cmd_Info);
			tb.addCommand(cmd_buy);
			tb.setCommandListener(this);
		}
		
		public void startApp(){
			display.setCurrent(tb);
		}	
	
		public void pauseApp(){
		
		}
	
		public void destroyApp(boolean unconditional){
		
		}
	
		public void commandAction(Command c,Displayable d){
			
		}
}