• 丰搜首页
• 文档中心
• 视频中心
• 丰搜贴吧
• 问题集锦
• 更多功能

选择显示字体大小

• 最大
• 较大
• 标准

熟练使用j2me可选包mmapi

本文的目的是为读者提供处理不同情况的代码，您可以参考mmapi doc。

1. 播放单音
   try {
   manager.playtone(tonecontrol.c4, 5000 /* millisec */, 100 /* max vol */);
   } catch (mediaexception e) { }
   
2. 简单媒体重放功能实现
   try {
   player p = manager.createplayer("http://webserver/music.mp3");
   p.setloopcount(5);
   p.start();
   } catch (ioexception ioe) {
   } catch (mediaexception me) { }
   
3. 详细重放控制
   static final long secs_to_microsecs = 1000000l;
   player p;
   volumecontrol vc;
   try {
   p = manager.createplayer("http://webserver/music.mp3");
   p.realize();
   // set a listener.
   p.addplayerlistener(new listener());
   // grab volume control for the player.
   // set volume to max.
   vc = (volumecontrol)p.getcontrol("volumecontrol");
   if (vc != null)
   vc.setlevel(100);
   // set a start time.
   p.setmediatime(5 * secs_to_microsecs);
   // guarantee that the player can start with the smallest latency.
   p.prefetch();
   // non-blocking start
   p.start();
   } catch (ioexception ioe) {
   } catch (mediaexception me) { }
   class listener implements playerlistener {
   public void playerupdate(player p, string event, object eventdata) {
   if (event == end_of_media event == stop_at_time) {
   system.out.println("done processing");
   try {
   p.setmediatime(5 * secs_to_microsecs);
   p.start();
   } catch (mediaexception me) { }
   break;
   }
   }
   }
   
4. 实现midi重放控制
   

   player p;tempocontrol tc;try {    p = manager.createplayer("http://webserver/tune.mid");    p.realize();    // grab the tempo control.    tc = (tempocontrol)p.getcontrol("tempocontrol");    tc.settempo(120000); // 120 beats/min    p.start();} catch (ioexception ioe) {} catch (mediaexception me) { }

5. 视频重放功能实现
   

   player p;videocontrol vc;try {    p = manager.createplayer("http://webserver/movie.mpg");    p.realize();    // grab the video control and set it to the current display.    vc = (videocontrol)p.getcontrol("videocontrol");    if (vc != null) {        form form = new form("video");        form.append((item)vc.initdisplaymode(vc.use_gui_primitive, null));        display.getdisplay(midlet).setcurrent(form);    }    p.start();} catch (ioexception ioe) {} catch (mediaexception me) { }

6. 播放rms内存储的数据
   

   recordstore rs;int recordid;   :  // code to set up the record store.try {    inputstream is = new    bytearrayinputstream(rs.getrecord(recordid));    player p = manager.createplayer(is, "audio/x-wav");    p.start();} catch (ioexception ioe) {} catch (mediaexception me) { }
   [1] [2]  下一页
   
   
   
   
   
   
    
   
   
   	
   
   		
   关于丰搜
   		
   用户帮助
   		
   友情连接
   		
   意见留言
   		
   不良信息举报
   		
   免责声明
   		
   
   
   	
   
   		
   
   		  Copyright  © 2001- 2010 丰搜网 All Rights Reserved
   		
   		
   ICP备案编号:粤ICP备06052964号