playmedia1.java

基于J2me的手机软件演示例子

package com.wy.ch12;

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

public class PlayMedia1 extends MIDlet implements CommandListener {
    private Display display;
    private Form f;
    private Command command;
    public PlayMedia1(){
        display = Display.getDisplay(this);
        f = new Form("音调播放测试");
        command = new Command("播放", Command.ITEM, 1);
        f.addCommand(command);
        f.setCommandListener(this);
    }
    
    public void startApp() {
        display.setCurrent(f);
    }
    
    public void commandAction(Command command, Displayable displayable) {
        try {
            Manager.playTone(ToneControl.C4, 500 , 50);
        } catch (MediaException e){
        }
    }
    
    public void pauseApp() {
    }
    
    public void destroyApp(boolean unconditional) {
    }
    
}