(Android™) Unzip

See more Zip Examples

Unzip a zip archive, creating the subfolders as needed.

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

    CkZip zip = new CkZip();

    boolean success = zip.OpenZip("qa_data/zips/sample.zip");
    if (success != true) {
        Log.i(TAG, zip.lastErrorText());
        return;
        }

    // Unzip to c:/temp/testDir
    // If c:/temp/testDir does not yet exist, it will be auto-created.
    int numFilesUnzipped = zip.Unzip("c:/temp/testDir");
    if (numFilesUnzipped < 0) {
        Log.i(TAG, zip.lastErrorText());
        return;
        }

    // If, for example, the zip contained these files:

    // aaa/pigs.json
    // bbb/base64Cert.txt
    // bbb/sub1/brasil_cert.pem
    // bbb/sub2/penguins.gif
    // bbb/sub2/starfish.jpg
    // hamlet.xml
    // hello.pdf

    // then after unzipping, the following files will be created:

    // c:/temp/testDir/aaa/pigs.json
    // c:/temp/testDir/bbb/base64Cert.txt
    // c:/temp/testDir/bbb/sub1/brasil_cert.pem
    // c:/temp/testDir/bbb/sub2/penguins.gif
    // c:/temp/testDir/bbb/sub2/starfish.jpg
    // c:/temp/testDir/hamlet.xml
    // c:/temp/testDir/hello.pdf

    zip.CloseZip();

  }

  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."
  }
}