Android™

Download a Zip from a URL and OpenBd. (No .zip file is created)

See more Zip Examples

Demonstrates how to download a .zip from a URL, opens the Zip, and gets the contents of a file. No file is ever written. 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;

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

    CkHttp http = new CkHttp();

    CkBinData bd = new CkBinData();

    // This URL is valid and can be tested...
    success = http.QuickGetBd("https://chilkatdownload.com/example_data/hamlet.zip",bd);
    if (http.get_LastMethodSuccess() == false) {
        Log.i(TAG, http.lastErrorText());
        return;
        }

    CkZip zip = new CkZip();

    // Open the zip from the bytes contained in bd.
    success = zip.OpenBd(bd);
    if (success == false) {
        Log.i(TAG, zip.lastErrorText());
        return;
        }

    // Get the entry for the file we want..
    CkZipEntry entry = new CkZipEntry();
    success = zip.EntryOf("hamlet.xml",entry);
    if (success == false) {
        Log.i(TAG, zip.lastErrorText());
        return;
        }

    // Convert all line endings to CRLF (if needed)
    int lineEndingBehavior = 2;
    String xmlStr = entry.unzipToString(lineEndingBehavior,"utf-8");
    if (entry.get_LastMethodSuccess() == false) {
        Log.i(TAG, entry.lastErrorText());
        return;
        }

    // The XML in this case is about 274K, so let's just examine the last 20 lines...
    CkStringBuilder sb = new CkStringBuilder();
    sb.Append(xmlStr);

    Log.i(TAG, sb.lastNLines(20,true));

  }

  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."
  }
}