(Android™) Fetch Oldest/Newest IMAP Email

Emails may be downloaded by sequence number. Assuming the selected mailbox is not empty, the oldest email is at sequence number 1, and the newest email is at sequence number N. The FetchSingle method may be used to download by sequence number.

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);

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkImap imap = new CkImap();

    // Connect to an IMAP server.
    // Use TLS
    imap.put_Ssl(true);
    imap.put_Port(993);
    boolean success = imap.Connect("mail.testemail.net");
    if (success != true) {
        Log.i(TAG, imap.lastErrorText());
        return;
        }

    // Login
    success = imap.Login("***","***");
    if (success != true) {
        Log.i(TAG, imap.lastErrorText());
        return;
        }

    // Select an IMAP mailbox
    success = imap.SelectMailbox("Inbox");
    if (success != true) {
        Log.i(TAG, imap.lastErrorText());
        return;
        }

    // After selecting a mailbox, the NumMessages property
    // contains the number of emails in the selected mailbox.
    int n;
    n = imap.get_NumMessages();

    if (n > 0) {

        // The oldest email is always at sequence number 1.
        boolean isUid = false;

        CkEmail oldestEmail;
        oldestEmail = imap.FetchSingle(1,isUid);
        if (imap.get_LastMethodSuccess() == true) {

            // Display the From and Subject
            Log.i(TAG, oldestEmail.fromAddress());
            Log.i(TAG, oldestEmail.subject());

            Log.i(TAG, "--");

            }

        // The newest email is at sequence number N:
        CkEmail newestEmail;
        newestEmail = imap.FetchSingle(n,isUid);
        if (imap.get_LastMethodSuccess() == true) {

            // Display the From and Subject
            Log.i(TAG, newestEmail.fromAddress());
            Log.i(TAG, newestEmail.subject());

            }

        }

    // Disconnect from the IMAP server.
    success = imap.Disconnect();

  }

  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."
  }
}