stupidbtmidlet.java

手机蓝牙通讯

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package com.mir.bluetooth;

import javax.microedition.lcdui.Alert;
import javax.microedition.lcdui.AlertType;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.List;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

/**
 * @author Jagie
 *
 *  MIDlet
 */
public class StupidBTMIDlet extends MIDlet implements CommandListener {
    List list;

    ServerBox sb;

    ClientBox cb;

    /*
     * (non-Javadoc)
     *
     * @see javax.microedition.midlet.MIDlet#startApp()
     */
    protected void startApp() throws MIDletStateChangeException {
        list = new List("傻瓜蓝牙入门", List.IMPLICIT);
        list.append("Client", null);
        list.append("Server", null);
        list.setCommandListener(this);
        Display.getDisplay(this).setCurrent(list);

    }

    /**
     * debug方法
     * @param s 要显示的字串
     */

    public void showString(String s) {
        Displayable dp = Display.getDisplay(this).getCurrent();
        Alert al = new Alert(null, s, null, AlertType.INFO);
        al.setTimeout(2000);
        Display.getDisplay(this).setCurrent(al, dp);
    }

    /**
     * 显示主菜单
     *
     */

    public void showMainMenu() {
        Display.getDisplay(this).setCurrent(list);
    }


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

    }

    public void commandAction(Command com, Displayable disp) {
        if (com == List.SELECT_COMMAND) {
            List list = (List) disp;
            int index = list.getSelectedIndex();
            if (index == 1) {
                if (sb == null) {
                    sb = new ServerBox(this);
                }
                sb.setString(null);
                Display.getDisplay(this).setCurrent(sb);
            } else {
                //每次都生成新的客户端实例
                cb = null;
                System.gc();
                cb = new ClientBox(this);

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


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

    }

}