dialog.java

java手机程序开发随书光盘源代码

import javax.microedition.lcdui.*;

public class Dialog implements CommandListener{

	static int LEFT = 1;
	static int RIGHT = 2;
	Form genDialog;
	Command leftCmd;
	Command rightCmd;
	DialogListener listener;
	
	public Dialog(String title, String leftText, String rightText){
		
		leftCmd = new Command(leftText, Command.SCREEN, 1);
		rightCmd = new Command(rightText, Command.SCREEN, 2);	
		genDialog = new Form(title);
		genDialog.addCommand(leftCmd);
		genDialog.addCommand(rightCmd);
		genDialog.setCommandListener(this);
	}

	public void setDialogListener(DialogListener dlistener){
		
		listener = dlistener;
	}

	public void commandAction(Command c, Displayable d){
		
		if(c == leftCmd){
			listener.process(Dialog.LEFT);
		}
		else if(c == rightCmd){
			listener.process(Dialog.RIGHT);
		}
	}
	
	public void showDialog(Display d){
		d.setCurrent(genDialog);
	}
	
	public void setText(String text){
		genDialog.append(text);
	}
	
	public void setImage(Image image){
		genDialog.append(image);
	}
}