(Android™) Base64 Encode a File

Android™ to Base64 encode the contents of a file.

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 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);

    // Get the contents of a file into a base64 encoded string:
    CkFileAccess fac = new CkFileAccess();
    String strBase64 = fac.readBinaryToEncoded("c:/data/something.pdf","base64");
    if (fac.get_LastMethodSuccess() != true) {
        Log.i(TAG, fac.lastErrorText());
        return;
        }

    // Now write the string to a file:
    boolean success = fac.WriteEntireTextFile("c:/data/something_pdf_base64.txt",strBase64,"us-ascii",false);
    if (success != true) {
        Log.i(TAG, fac.lastErrorText());
        return;
        }

    Log.i(TAG, "Success!");

  }

  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."
  }
}