Android™

Base64 Encode/Decode a String

See more Encryption Examples

_LANGUAGE_ example to base-64 encode and decode a string. 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;

    CkBinData bd = new CkBinData();

    String s = "A friend called me up the other day and talked about investing in a dot-com that sells lobsters. Internet lobsters. Where will this end? --Donald Trump";

    success = bd.AppendString(s,"utf-8");

    String strBase64 = bd.getEncoded("base64");
    Log.i(TAG, strBase64);

    // To decode:
    CkBinData bd2 = new CkBinData();
    bd2.AppendEncoded(strBase64,"base64");

    String decoded = bd2.getString("utf-8");
    Log.i(TAG, decoded);

  }

  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."
  }
}