Dart

Add Text from a StringBuilder to a ZIP Using AddSb

See more Zip Examples

This example demonstrates how to use the AddSb method to add text from a StringBuilder object as a file entry within a ZIP archive.

The text is converted to bytes using the specified character encoding before being stored in the ZIP archive.

This method is useful for dynamically generating text files entirely in memory without creating temporary files on disk.

Dart

import 'package:chilkat/chilkat.dart';

void main() {
  final zip = CkZip();

  try {
    zip.newZip('stringBuilderData.zip');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Create a StringBuilder containing text data.
  final sb = CkStringBuilder();

  sb.appendLine('Line 1: Hello World!', true);
  sb.appendLine('Line 2: This text came from a StringBuilder.', true);

  // Add the StringBuilder contents as a UTF-8 text file
  // stored in the ZIP archive as "docs/readme.txt".
  try {
    zip.addSb('docs/readme.txt', sb, 'utf-8');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Write the ZIP archive to disk and close it.
  try {
    zip.writeZipAndClose();
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('ZIP archive created successfully.');
}