Get the Nth Binary Part of a Content-Type into BinData

See more Email Object Examples

Demonstrates the Chilkat Email.GetNthBinaryPartOfTypeBd method, which loads the binary bytes of the Nth MIME sub-part matching a content-type pattern into a BinData object. The arguments are the zero-based index among the matching parts, the content-type pattern, an inlineOnly flag, an excludeAttachments flag, and the BinData that receives the bytes. This example extracts the first image/png part.

// 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;

    //  Demonstrates the GetNthBinaryPartOfTypeBd method, which loads the binary bytes of the Nth
    //  MIME sub-part matching a Content-Type pattern into a BinData object.  The arguments are
    //  the zero-based index among matching parts, the Content-Type pattern, inlineOnly,
    //  excludeAttachments, and the BinData that receives the bytes.

    CkEmail email = new CkEmail();
    email.put_Subject("GetNthBinaryPartOfTypeBd example");
    email.put_Body("See the attached image.");

    //  Load the image from a file into a BinData object and attach it (binary data belongs
    //  in a BinData, never in a string).
    CkBinData bdImage = new CkBinData();
    success = bdImage.LoadFile("qa_data/images/photo.png");
    if (success == false) {
        Log.i(TAG, bdImage.lastErrorText());
        return true;
        }

    success = email.AddAttachmentBd("photo.png",bdImage,"image/png");
    if (success == false) {
        Log.i(TAG, email.lastErrorText());
        return true;
        }

    //  Load the bytes of the first (index 0) image/png part into a BinData object.
    CkBinData bd = new CkBinData();
    success = email.GetNthBinaryPartOfTypeBd(0,"image/png",false,false,bd);
    if (success == false) {
        Log.i(TAG, email.lastErrorText());
        return true;
        }

    Log.i(TAG, "image/png part size (bytes) = " + String.valueOf(bd.get_NumBytes()));

    //  Note: The path "qa_data/images/photo.png" is a relative local filesystem path,
    //  relative to the current working directory of the running application.

  }

  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."
  }
}