listimplicitmidlet.java

来自「<j2me 开发精解> 詹建光著 里所有的源码。对J2me的开发相当」· Java 代码 · 共 39 行

package com.j2medev.sample.chapter3;

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

public class ListImplicitMidlet extends MIDlet implements CommandListener {
    
    private String[] elements = {"Java", "C++", "Pasical", "Basic"};
    private List list = new List("您喜欢的语言", List.IMPLICIT, elements, null);
    private Display display = null;
    private Command selectCommand = new Command("选择",Command.OK, 1);
    
    public ListImplicitMidlet() {
        list.setSelectCommand(selectCommand);
        list.setCommandListener(this);
    }
    
    public void startApp() {
        if(display==null) {
            display = Display.getDisplay(this);
        }
        display.setCurrent(list);
    }
    
    public void pauseApp() {
    }
    
    public void destroyApp(boolean unconditional) {
    }
    
    public void commandAction(Command cmd, Displayable displayable) {
        if(cmd==selectCommand) {
            int selectedIndex = list.getSelectedIndex();
            String item = list.getString(selectedIndex);
            System.out.println("您选择了"+item);
        }
    }
}