Get the Content-ID of an Attachment

See more Email Object Examples

Demonstrates the Chilkat Email.GetAttachmentContentID method, which returns the Content-ID header field for the Nth attachment. The index is zero-based, so the first attachment is 0. This example adds an attachment and reads its Content-ID (which may be empty when none was assigned).

// 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);

    //  Demonstrates the GetAttachmentContentID method, which returns the Content-ID header
    //  field for the Nth attachment.  The index is zero-based (the first attachment is 0).

    CkEmail email = new CkEmail();
    email.put_Subject("Attachment Content-ID");

    email.AddStringAttachment("notes.txt","Some notes.");

    //  Get the Content-ID of the first attachment (may be empty if none was assigned).
    String cid = email.getAttachmentContentID(0);
    Log.i(TAG, "Attachment 0 Content-ID: " + cid);

  }

  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."
  }
}