addfriends.java

J2ME的源码！我以前学习J2ME的源码哈！非常适合初学者

package flow2;

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

public class Addfriends extends Form implements CommandListener {
	private TextField namefield, tel, phone, email;

	private List main;

	private Display display;

	Command saveCmd = new Command("存储", Command.ITEM, 1);

	Command backCmd = new Command("返回", Command.BACK, 5);

	public Addfriends(Display display2, List main2) {// 这里是传入上面的两个参数;

		super("添加联系人");

		this.display = display2;// 还需将这两个参数传进来,否则无法完成返回的操作
		this.main = main2;

		namefield = new TextField("姓名", "", 20, TextField.INITIAL_CAPS_WORD);// 有四个数据,前两个为字符串,第3个为字数,第4个为TextField.一个常量,ANY是任意的意思;
		tel = new TextField("移动电话", "", 20, TextField.PHONENUMBER);
		phone = new TextField("固定电话", "", 20, TextField.PHONENUMBER);
		email = new TextField("电子邮件", "", 20, TextField.EMAILADDR);

		addCommand(saveCmd);
		setCommandListener(this);
		addCommand(backCmd);

		append(namefield);
		append(tel);
		append(phone);
		append(email);

	}

	public void commandAction(Command c, Displayable d) {
		if (c == backCmd) {
			display.setCurrent(main);

		}

	}

}