(Android™) FTP Download with Progress Event Callbacks

FTP download with progress event callbacks.

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 ftpProgress extends CkFtp2Progress
  {

  public boolean PercentDone(int percentDone)
    {
    boolean abort = false;
    Log.i(TAG, "Percent Done: " + String.valueOf(percentDone));
    // Return true to abort, false to continue.
    return abort;
    }

  public void ProgressInfo(String name, String value)
    {
    Log.i(TAG, name + ": " + value);
    return;
    }

};

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

    CkFtp2 ftp = new CkFtp2();
    ftpProgress ftp_progress = new ftpProgress();
    ftp.put_EventCallbackObject(ftp_progress);

    ftp.put_Hostname("ftp.someFtpServer.com");
    ftp.put_Username("myLogin");
    ftp.put_Password("myPassword");

    // Connect and login to the FTP server.
    boolean success = ftp.ConnectOnly();
    if (success != true) {
        Log.i(TAG, ftp.lastErrorText());
        return;
        }

    success = ftp.LoginAfterConnectOnly();
    if (success != true) {
        Log.i(TAG, ftp.lastErrorText());
        return;
        }

    // Change to the remote directory where the file is located.
    // This step is only necessary if the file is not in the home directory
    // of the FTP account.
    success = ftp.ChangeRemoteDir("junk");
    if (success != true) {
        Log.i(TAG, ftp.lastErrorText());
        return;
        }

    String localFilename = "c:/temp/hamlet.xml";
    String remoteFilename = "hamlet.xml";

    // Ensure that we get PercentDone callbacks.
    ftp.put_AutoGetSizeForProgress(true);

    // Download the file.
    success = ftp.GetFile(remoteFilename,localFilename);
    if (success != true) {
        Log.i(TAG, ftp.lastErrorText());
        return;
        }

    success = ftp.Disconnect();

    Log.i(TAG, "File Downloaded!");

  }

  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."
  }
}