(Android™) List Files/Directories in Zip by Index

See more Zip Examples

Demonstrates how to iterate over the files and directories in a zip archive by index.

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;
        }

    int numEntries = zip.get_NumEntries();
    int i = 0;

    CkZipEntry entry;

    while (i < numEntries) {
        entry = zip.GetEntryByIndex(i);
        // Note: In the ZIP file format, it is not required for a ZIP file to contain explicit directory entries. 
        // However, explicit directory entries can be included for convenience and compatibility with certain ZIP file processing tools and software.
        // An explicit directory entry in a ZIP file is an entry that specifically represents a directory, rather than a file. 
        // It usually has a directory name with a trailing slash (/) and zero-length content.
        if (entry.get_IsDirectory()) {
            Log.i(TAG, String.valueOf(i) + ": " + entry.fileName() + " (directory)");
            }
        else {
            Log.i(TAG, String.valueOf(i) + ": " + entry.fileName());
            }

        i = i + 1;
        }

    // Sample output:

    // 0: aaa/ (directory)
    // 1: aaa/pigs.json
    // 2: bbb/ (directory)
    // 3: bbb/base64Cert.txt
    // 4: bbb/sub1/ (directory)
    // 5: bbb/sub1/brasil_cert.pem
    // 6: bbb/sub2/ (directory)
    // 7: bbb/sub2/penguins.gif
    // 8: bbb/sub2/starfish.jpg
    // 9: hamlet.xml
    // 10: 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."
  }
}