textfielddemo.java

《精通JAVA手机游戏与应用程序设计》随书光盘

/*
 * @(#)TextFieldDemo.java 1.7 04/04/25
 * 
 * Copyright (c) 2000-2004 Sun Microsystems, Inc. All rights reserved.
 * PROPRIETARY/CONFIDENTIAL Use is subject to license terms
 */

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

public class TextFieldDemo extends MIDlet implements CommandListener {

	private Command exitCommand = new Command("退出", Command.EXIT, 1);

	private Form mainForm;

	public TextFieldDemo() {
		mainForm = new Form("Text Field");
	}

	protected void startApp() {

		mainForm.append("显示各种类型的TextField");

		mainForm.append(new TextField("任何字符", "", 15, TextField.ANY));
		mainForm.append(new TextField("E-Mail", "", 15, TextField.EMAILADDR));
		mainForm.append(new TextField("数字", "", 15, TextField.NUMERIC));
		mainForm.append(new TextField("浮点数", "", 15, TextField.DECIMAL));
		mainForm.append(new TextField("电话", "", 15, TextField.PHONENUMBER));
		mainForm.append(new TextField("密码", "", 15, TextField.PASSWORD));
		mainForm.append(new TextField("网址URL", "", 15, TextField.URL));

		mainForm.addCommand(exitCommand);
		mainForm.setCommandListener(this);

		Display.getDisplay(this).setCurrent(mainForm);
	}

	public void commandAction(Command c, Displayable s) {
		if (c == exitCommand) {
			destroyApp(false);
			notifyDestroyed();
		}
	}

	protected void destroyApp(boolean unconditional) {
	}

	protected void pauseApp() {
	}
}