Dart Requires Chilkat v11.0.0+

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. Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // This example assumes the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  final zip = CkZip();

  try {
    zip.openZip('qa_data/zips/sample.zip');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  final numEntries = zip.numEntries;

  final entry = CkZipEntry();

  var i = 0;
  while (i < numEntries) {
    zip.entryAt(i, entry);
    // 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.isDirectory) {
      print('$i: ${entry.fileName} (directory)');
    } else {
      print('$i: ${entry.fileName}');
    }

    i++;
  }

  // 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();
}