(Android™) Controlling paths within a Zip

How to control the paths stored within a .zip.

Chilkat Android™ Downloads Android™ Java Libraries Android C/C++ Libraries

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkZip zip = new CkZip();

    boolean success;

    // This is the directory structure on the local filesystem
    // from which we'll create .zip archives:
    // The root directory is /temp/filesToZip
    // 
    // We have these files:
    // /temp/filesToZip/faxCover.doc
    // /temp/filesToZip/exe/Setup.exe
    // /temp/filesToZip/images/cheese.jpg
    // /temp/filesToZip/images/dude.gif
    // /temp/filesToZip/images/img3.gif
    // /temp/filesToZip/images/img4.gif
    // /temp/filesToZip/images/img5.gif
    // /temp/filesToZip/images/scream.jpg
    // /temp/filesToZip/images/imageInfo/scream.xml
    // /temp/filesToZip/images/imageInfo/cheese.xml
    // /temp/filesToZip/text/html/bonaireFishing.html
    // /temp/filesToZip/text/html/upload.html
    // /temp/filesToZip/text/txt/hello.txt
    // /temp/filesToZip/text/txt/HelloWorld123.txt
    // /temp/filesToZip/text/xml/hamlet.xml
    // /temp/filesToZip/text/xml/pigs.xml

    // There are three properties to help control the paths stored
    // within a .zip:
    // AppendFromDir
    // PathPrefix
    // DiscardPaths
    // 

    // First we'll demonstrate AppendFromDir
    // When a directory tree is appended via AppendFiles or
    // AppendFilesEx, the AppendFromDir sets the base of the 
    // directory tree appended (if the file pattern contains a 
    // relative path, or no path at all).

    // Clear the zip object.
    zip.NewZip("test1.zip");

    boolean recurse = true;

    zip.put_AppendFromDir("/temp/filesToZip");
    success = zip.AppendFiles("*.xml",recurse);

    // The zip will contain:
    // images/imageInfo/scream.xml
    // images/imageInfo/cheese.xml
    // text/xml/hamlet.xml
    // text/xml/pigs.xml

    success = zip.WriteZipAndClose();
    if (success != true) {
        Log.i(TAG, zip.lastErrorText());
        return;
        }

    // Clear the zip object.
    success = zip.NewZip("test2.zip");

    zip.put_AppendFromDir("/temp/filesToZip/images");
    success = zip.AppendFiles("*.xml",recurse);
    zip.put_AppendFromDir("/temp/filesToZip/text");
    success = zip.AppendFiles("*.xml",recurse);

    // The zip will contain:
    // imageInfo/scream.xml
    // imageInfo/cheese.xml
    // xml/hamlet.xml
    // xml/pigs.xml

    success = zip.WriteZipAndClose();
    if (success != true) {
        Log.i(TAG, zip.lastErrorText());
        return;
        }

    // The PathPrefix property adds an arbitrary path prefix to each
    // file in the .zip.
    // For example:

    // Clear the zip object.
    success = zip.NewZip("test3.zip");

    zip.put_PathPrefix("chilkat/");

    zip.put_AppendFromDir("/temp/filesToZip/images");
    success = zip.AppendFiles("*.xml",recurse);
    zip.put_AppendFromDir("/temp/filesToZip/text");
    success = zip.AppendFiles("*.xml",recurse);

    // The zip will contain:
    // chilkat/imageInfo/scream.xml
    // chilkat/imageInfo/cheese.xml
    // chilkat/xml/hamlet.xml
    // chilkat/xml/pigs.xml

    success = zip.WriteZipAndClose();
    if (success != true) {
        Log.i(TAG, zip.lastErrorText());
        return;
        }

    // The DiscardPaths property removes the path from each file
    // in the zip:
    // For example:

    // Clear the zip object.
    success = zip.NewZip("test4.zip");

    zip.put_PathPrefix("");
    zip.put_DiscardPaths(true);

    zip.put_AppendFromDir("/temp/filesToZip/");
    success = zip.AppendFiles("*",recurse);

    // The zip will contain:
    // faxCover.doc
    // Setup.exe
    // cheese.jpg
    // dude.gif
    // img3.gif
    // img4.gif
    // img5.gif
    // scream.jpg
    // scream.xml
    // cheese.xml
    // bonaireFishing.html
    // upload.html
    // hello.txt
    // HelloWorld123.txt
    // hamlet.xml
    // pigs.xml

    success = zip.WriteZipAndClose();
    if (success != true) {
        Log.i(TAG, zip.lastErrorText());
        return;
        }

    // You can combine PathPrefix with DiscardPaths:

    // Clear the zip object.
    success = zip.NewZip("test5.zip");

    zip.put_PathPrefix("chilkat/");
    zip.put_DiscardPaths(true);

    zip.put_AppendFromDir("/temp/filesToZip/");
    success = zip.AppendFiles("*",recurse);

    // The zip will contain:
    // chilkat/faxCover.doc
    // chilkat/Setup.exe
    // chilkat/cheese.jpg
    // chilkat/dude.gif
    // chilkat/img3.gif
    // chilkat/img4.gif
    // chilkat/img5.gif
    // chilkat/scream.jpg
    // chilkat/scream.xml
    // chilkat/cheese.xml
    // chilkat/bonaireFishing.html
    // chilkat/upload.html
    // chilkat/hello.txt
    // chilkat/HelloWorld123.txt
    // chilkat/hamlet.xml
    // chilkat/pigs.xml

    success = zip.WriteZipAndClose();
    if (success != true) {
        Log.i(TAG, zip.lastErrorText());
        return;
        }

    // One last example -- combine DiscardPaths with PathPrefix
    // with multiple calls to AppendFiles:

    // Clear the zip object.
    success = zip.NewZip("test6.zip");

    zip.put_DiscardPaths(true);
    zip.put_AppendFromDir("/temp/filesToZip/");

    // Get all .gif files:
    zip.put_PathPrefix("gif/");
    success = zip.AppendFiles("*.gif",recurse);

    // Get all .jpg files:
    zip.put_PathPrefix("jpg/");
    success = zip.AppendFiles("*.jpg",recurse);

    // Get all .xml files:
    zip.put_PathPrefix("xml/");
    success = zip.AppendFiles("*.xml",recurse);

    // The zip will contain:
    // jpg/cheese.jpg
    // gif/dude.gif
    // gif/img3.gif
    // gif/img4.gif
    // gif/img5.gif
    // jpg/scream.jpg
    // xml/scream.xml
    // xml/cheese.xml
    // xml/hamlet.xml
    // xml/pigs.xml

    success = zip.WriteZipAndClose();
    if (success != true) {
        Log.i(TAG, zip.lastErrorText());
        return;
        }


  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}