pakutiltestmidlet.java

j2me中制作Pak文件,来自www.matrix.org.cn

package cn.org.matrix.gmatrix.gameLab.util.pak;

import java.util.Vector;
import javax.microedition.lcdui.Image;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

/**
 * 用于测试PakUtil类，使用它从Pak文件中装载Image
 * @author cleverpig
 *
 */
public class PakUtilTestMIDlet extends MIDlet {

	public PakUtilTestMIDlet() {
		super();
		// TODO Auto-generated constructor stub
	}

	protected void startApp() throws MIDletStateChangeException{
		PakUtil pu=new PakUtil();
		String extractResourcePath="/test.pak";
		
		try{
			//从Pak文件中取出所有的图片文件
			Vector pakInfo=pu.showPakFileInfo(extractResourcePath);
			PakHeader header=(PakHeader)pakInfo.elementAt(0);
			System.out.println("Pak文件信息:");
			System.out.println("文件头:");
			System.out.println(header);
			
			PakFileTable[] fileTable=(PakFileTable[])pakInfo.elementAt(1);
			for(int i=0;i<fileTable.length;i++){
				System.out.println("文件table["+i+"]:");
				System.out.println(fileTable[i]);
			}
			
			System.out.println("开始装载Image");
			long startTime=System.currentTimeMillis();
			String restoreFileName=null;
			byte[] fileBuff=null;
			for(int i=0;i<fileTable.length;i++){
				restoreFileName=new String(fileTable[i].getFileName()).trim();
				System.out.println("从Pak文件中取出"+restoreFileName+"文件数据...");
				fileBuff=pu.extractResourceFromPak(extractResourcePath,restoreFileName);
				System.out.println("从Pak文件中取出"+restoreFileName+"文件数据完成");
				Image img=Image.createImage(fileBuff,0,(int)fileTable[i].getFileSize());
			}
			System.out.println("装载Image完成");
			System.out.println("共花费:"+(System.currentTimeMillis()-startTime)+" ms");
		}
		catch(Exception ex){
			ex.printStackTrace();
		}

	}

	protected void pauseApp() {
		

	}

	protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
		

	}

}