J2ME:高级列表

import java.io.IOException;

import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Font;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.List;
import javax.microedition.lcdui.Ticker;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

public class list1 extends MIDlet implements CommandListener{
    Display dis;
    List l=new List("请你选择操作",List.MULTIPLE);  //EXCLUSIVE为显示选择单选,IMPLICIT为普通单选(可以指定被选中时的command对象)，MULTIPLE为多选
 Ticker t=new Ticker("......");   //滚动显式文字
 String s1="楠木阿尼陀佛";
 String s2="阿呢路亚";
 private Command cmdOK=new Command("OK",Command.SCREEN,1);  //主动抢占右软键
 
 
    public list1() throws IOException{
 
    
  // TODO Auto-generated constructor stub
 }

 protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
  // TODO Auto-generated method stub

 }

 protected void pauseApp() {
  // TODO Auto-generated method stub

 }

 protected void startApp() throws MIDletStateChangeException {
  // TODO Auto-generated method stub
  Image img=null;
     try {
   img=Image.createImage("/12.png");   //获取图片资源，注意图片一定要放在res包内
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  Font font=Font.getFont(Font.FACE_SYSTEM, Font.STYLE_PLAIN,Font.SIZE_LARGE); //设置字体样式
  dis=Display.getDisplay(this);       //感觉上Displayable类和Swing里面的Contends一样，属于框架上面的容器
  dis.setCurrent(l);                 
  l.append("删除该号码",img);
  l.append("向该号码发送短信",null);
  l.append("编辑该号码",null);
  l.append("讲该号码设置为好友",null);
  //l.delete(0);  //删除列表项目
  //l.set(2,"叼你啊", null);
  //l.insert(3,"反叼翻你" , null);
  //l.setCommandListener(this);
  l.append("念佛", null);
  l.append("讲耶稣", null);
  l.setFont(1,font);  //改变选项字体
  l.setTicker(t);    //设置滚动显示
  l.addCommand(cmdOK);   //添加按钮
  l.setCommandListener(this);   //添加监听器
  
 }

 public void commandAction(Command c, Displayable d) {
  // TODO Auto-generated method stub
  //l.setTitle(l.getString(l.getSelectedIndex()));
  int size=l.size();
        //多选项判断方法一，遍历isSelected
  for(int i=0;i<size;i++)
   if(l.isSelected(i))
    System.out.println(l.getString(i)+":  被选中");
  
  //多选项判断方法二，使用getSelectedFlags获取点击状态
  boolean[] bs=new boolean[size];
  l.getSelectedFlags(bs);
  for(int i=0;i<size;i++)
      if(bs[i])
       System.out.println(l.getString(i)+":  被选中");
  
  if(l.getSelectedIndex()==4||c==l.SELECT_COMMAND)
      t.setString(s1);
  if(l.getSelectedIndex()==5)
   t.setString(s2);
 }

}