J2ME中GIF格式图片视频播发

package com.mopietek;import java.io.IOException;import java.io.InputStream;import javax.microedition.lcdui.Display;import javax.microedition.lcdui.Form;import javax.microedition.lcdui.Item;import javax.microedition.media.Manager;import javax.microedition.media.MediaException;import javax.microedition.media.Player;import javax.microedition.media.control.VideoControl;import javax.microedition.midlet.MIDlet;import javax.microedition.midlet.MIDletStateChangeException;public class GifPlayer extends MIDlet{	private Display display;	private Player player = null;			protected void destroyApp(boolean unconditional) throws MIDletStateChangeException {		// TODO Auto-generated method stub		if(player != null){			player.close();			player = null;		}	}	protected void pauseApp() {		// TODO Auto-generated method stub			}	protected void startApp() throws MIDletStateChangeException {		// TODO Auto-generated method stub	   if(display == null){		   display = Display.getDisplay(this);	   }		   Form form = new Form("gif Player");	   InputStream is = getClass().getResourceAsStream("/12.gif");	   createPlayer(is);	   if(player == null){		  form.append("can not play image/gif");	   }else{		   VideoControl vc = (VideoControl)player.getControl("VideoControl");		   if(vc != null){			   form.append((Item)vc.initDisplayMode(VideoControl.USE_GUI_PRIMITIVE, null));			   		   }	   }	   display.setCurrent(form);	   try{		   player.start();	   }catch(MediaException ex){		   ex.printStackTrace();	   }	   	}		private void createPlayer(InputStream is){				String [] contents = Manager.getSupportedContentTypes(null);		for(int i=0;i<contents.length;i++){			if(contents[i].toLowerCase().indexOf("image/gif") != -1){				try{					player = Manager.createPlayer(is,"image/gif");					player.realize();				}catch(IOException e){					e.printStackTrace();				}catch(MediaException me){					me.printStackTrace();				}							}		}	}	}