Android™

Get the Decoded MIME Body Bytes (BinData)

Demonstrates the Chilkat Mime.GetBodyBd method, which replaces the contents of a BinData with the decoded body bytes of the current part. The only argument is the BinData. Base64 and quoted-printable are decoded; headers and boundaries are not included.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: This is how you extract a part's actual content as bytes — the decoded payload of an attachment or an image, ready to hash, re-save, or hand to another API. Because it works in raw bytes it is the correct choice for binary parts, where a text decode would be wrong. Note it replaces the BinData contents rather than appending.

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// 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;

    CkMime mime = new CkMime();
    success = mime.LoadMimeFile("qa_data/message.eml");
    if (success == false) {
        Log.i(TAG, mime.lastErrorText());
        return;
        }

    //  Replace the contents of a BinData with the decoded body bytes of the current part.  Base64 and
    //  quoted-printable are decoded; MIME headers and multipart boundaries are not included.
    CkBinData bd = new CkBinData();
    success = mime.GetBodyBd(bd);
    if (success == false) {
        Log.i(TAG, mime.lastErrorText());
        return;
        }

    Log.i(TAG, "Decoded body: " + String.valueOf(bd.get_NumBytes()) + " bytes.");

  }

  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."
  }
}