[Android] Resursively compress files in Android

References:
http://stackoverflow.com/questions/5414925/how-to-zip-folder-recursively-in-android
http://ucla.jamesyxu.com/?p=112

and I prefer this:
http://www.mkyong.com/java/how-to-compress-files-in-zip-format/


and I modified it a bit here:
-----------------------------------------------------------------
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class AppZip
{
   List<String> fileList;

   String SOURCE_FOLDER;
   String OUTPUT_ZIP_FILE;

   AppZip(String SOURCE_FOLDER, String OUTPUT_ZIP_FILE){
       this.SOURCE_FOLDER = SOURCE_FOLDER;
       this.OUTPUT_ZIP_FILE = OUTPUT_ZIP_FILE;
       fileList = new ArrayList<String>();
       generateFileList(new File(SOURCE_FOLDER));
   }

 

   /**
    * Zip it
    * @param zipFile output ZIP file location
    */
   public void zipIt(){

    String zipFile = this.OUTPUT_ZIP_FILE;
    byte[] buffer = new byte[1024];

    try{

       FileOutputStream fos = new FileOutputStream(zipFile);
       ZipOutputStream zos = new ZipOutputStream(fos);

       System.out.println("Output to Zip : " + zipFile);

       for(String file : this.fileList){

           System.out.println("File Added : " + file);
           ZipEntry ze= new ZipEntry(file);
           zos.putNextEntry(ze);

           FileInputStream in =
                      new FileInputStream(SOURCE_FOLDER + File.separator + file);

           int len;
           while ((len = in.read(buffer)) > 0) {
               zos.write(buffer, 0, len);
           }

           in.close();
       }

       zos.closeEntry();
       //remember close it
       zos.close();

       System.out.println("Done");
   }catch(IOException ex){
      ex.printStackTrace();  
   }
  }

   /**
    * Traverse a directory and get all files,
    * and add the file into fileList 
    * @param node file or directory
    */
   public void generateFileList(File node){

       //add file only
    if(node.isFile()){
        fileList.add(generateZipEntry(node.getAbsoluteFile().toString()));
    }

    if(node.isDirectory()){
        String[] subNote = node.list();
        for(String filename : subNote){
            generateFileList(new File(node, filename));
        }
    }

   }

   /**
    * Format the file path for zip
    * @param file file path
    * @return Formatted file path
    */
   private String generateZipEntry(String file){
       return file.substring(SOURCE_FOLDER.length(), file.length());
   }
}
--------------------------------------
example:
String myFiles = "C:\\myfiles\\"; //do not forgot the backslash in this version
String  outZipName = "compressedFiles"; //compressedFile.zip
AppZip az = new AppZip(myFiles, outZipName);
az.zipIt();




non-recursive version:
http://stackoverflow.com/questions/8409219/zipping-files-and-folders-in-android