(Android™) Retrieve UIDL's from POP3 Server

Retrieve a list of UIDLs from a POP3 server. UIDLs are unique identifiers, 1 to 70 characters long, composed of characters ranging from 0x21 to 0x7E. These identifiers uniquely distinguish messages within a mailbox and remain consistent across sessions.

Note: This example requires Chilkat v11.0.0 or greater.

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);

    boolean success = false;

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

    CkMailMan mailman = new CkMailMan();

    mailman.put_MailHost("pop.example.com");

    mailman.put_PopUsername("myLogin");
    mailman.put_PopPassword("myPassword");

    mailman.put_MailPort(995);
    mailman.put_PopSsl(true);

    CkStringTable stUidls = new CkStringTable();
    success = mailman.FetchUidls(stUidls);
    if (success == false) {
        Log.i(TAG, mailman.lastErrorText());
        return;
        }

    // Download each email by UIDL.
    CkEmail email = new CkEmail();

    int count = stUidls.get_Count();
    int i = 0;
    while (i < count) {
        // Download the full email.
        String uidl = stUidls.stringAt(i);
        success = mailman.FetchByUidl(uidl,false,0,email);
        if (success == false) {
            Log.i(TAG, mailman.lastErrorText());
            return;
            }

        Log.i(TAG, String.valueOf(i));
        Log.i(TAG, "UIDL: " + uidl);
        Log.i(TAG, "From: " + email.ck_from());
        Log.i(TAG, "Subject: " + email.subject());

        i = i + 1;
        }

    mailman.Pop3EndSession();

  }

  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."
  }
}