(Android™) Zip One File

Zip a single file.

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

    // In this example, the file we wish to zip is /temp/abc123/HelloWorld123.txt

    // Add a reference to a single file by calling AppendOneFileOrDir
    // Note: You may use either forward or backward slashes.
    boolean saveExtraPath = false;
    success = zip.AppendOneFileOrDir("/temp/abc123/HelloWorld123.txt",saveExtraPath);
    if (success != true) {
        Log.i(TAG, zip.lastErrorText());
        return;
        }

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

    // A .zip containing "HelloWorld123.txt" with no path information has been created.
    Log.i(TAG, "Zip Created!");

    // Perhaps you want to include a path in the .zip such that when unzipping, a sub-directory
    // is automatically created and the file unzipped into it.  Use PathPrefix:

    // (We'll skip checking the success/failure return value.)

    // Set a PathPrefix to get the relative path you want:
    // The .zip will contain this entry: "myApp/HelloWorld123.txt"
    success = zip.NewZip("test2.zip");
    zip.put_PathPrefix("myApp/");
    success = zip.AppendOneFileOrDir("/temp/abc123/HelloWorld123.txt",saveExtraPath);
    success = zip.WriteZipAndClose();

  }

  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."
  }
}