Android™

Count the Messages in a multipart/digest Email

Demonstrates the read-only Chilkat Email.NumDigests property, which is the number of message/rfc822 parts contained within a multipart/digest enclosure. If no such enclosure exists, the value is 0. Digest indexes are zero-based; use GetDigestEmail to retrieve an individual bundled message as its own Email object. This example loads a digest email and lists each message's subject.

Background: A multipart/digest is a way to package many separate emails inside one carrier message — historically used by mailing lists to send a single daily "digest" containing all of that day's posts. Each bundled item is a complete message/rfc822 email with its own headers and body. This differs from NumAttachedMessages, which counts nested messages attached to an ordinary email rather than the members of a digest enclosure.

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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;

    //  Demonstrates the read-only Email.NumDigests property, which is the number of
    //  message/rfc822 parts contained within a multipart/digest enclosure.  If there is no
    //  multipart/digest enclosure, the value is 0.  Digest indexes are zero-based.

    CkEmail email = new CkEmail();

    //  Load a multipart/digest email (a single email that bundles many messages).
    success = email.LoadEml("qa_data/eml/digest.eml");
    if (success == false) {
        Log.i(TAG, email.lastErrorText());
        return true;
        }

    int n = email.get_NumDigests();
    Log.i(TAG, "NumDigests = " + String.valueOf(n));

    //  Retrieve each bundled message as its own Email object.
    CkEmail digestEmail = new CkEmail();
    int i;
    for (i = 0; i <= n - 1; i++) {
        success = email.GetDigestEmail(i,digestEmail);
        Log.i(TAG, "Digest " + String.valueOf(i) + " subject: " + digestEmail.subject());
        }

    //  Note: Paths such as "qa_data/..." are relative local filesystem paths,
    //  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."
  }
}