Android™

Add Binary Data to a ZIP Using AddBd

See more Zip Examples

This example demonstrates how to use the AddBd method to add binary data from a BinData object as a file entry within a ZIP archive.

The data is created entirely in memory, added to the ZIP as data/binary.dat, and then written to disk.

Android™

// 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);

    boolean success = false;

    //  Create a new ZIP archive.
    CkZip zip = new CkZip();

    success = zip.NewZip("inMemoryData.zip");
    if (success == false) {
        Log.i(TAG, zip.lastErrorText());
        return;
        }

    //  Create a BinData object containing binary content.
    CkBinData bd = new CkBinData();

    //  Append some bytes as hexadecimal.
    //  The decoded bytes will become the contents of the ZIP entry.
    success = bd.AppendEncoded("000102030405060708090A0B0C0D0E0F","hex");
    if (success == false) {
        Log.i(TAG, bd.lastErrorText());
        return;
        }

    //  Add the BinData contents as a file entry within the ZIP.
    //  The file will be stored as "data/binary.dat" inside the ZIP archive.
    success = zip.AddBd("data/binary.dat",bd);
    if (success == false) {
        Log.i(TAG, zip.lastErrorText());
        return;
        }

    //  Write the ZIP archive to disk and close it.
    success = zip.WriteZipAndClose();
    if (success == false) {
        Log.i(TAG, zip.lastErrorText());
        return;
        }

    Log.i(TAG, "ZIP archive created successfully.");

  }

  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."
  }
}