(Chilkat for Android™ API)
IMAP Download All Email One at a Time

Demonstrates how to download every email in an IMAP mailbox one at a time as a MIME string or as an email object. (The MIME contains the full contents of the email including all attachments.)

Download: Chilkat for Android™ Java 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 {
  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    TextView tv = new TextView(this);
    String outStr = "";

    CkImap imap = new CkImap();

    boolean success;

    //  Anything unlocks the component and begins a fully-functional 30-day trial.
    success = imap.UnlockComponent("Anything for 30-day trial");
    if (success != true) {
        outStr += imap.lastErrorText() + "\n";
        tv.setText(outStr);
        setContentView(tv);
        return;
    }

    //  Connect to an IMAP server.
    success = imap.Connect("mail.chilkatsoft.com");
    if (success != true) {
        outStr += imap.lastErrorText() + "\n";
        tv.setText(outStr);
        setContentView(tv);
        return;
    }

    //  Login
    success = imap.Login("myLogin","myPassword");
    if (success != true) {
        outStr += imap.lastErrorText() + "\n";
        tv.setText(outStr);
        setContentView(tv);
        return;
    }

    //  Select an IMAP mailbox
    success = imap.SelectMailbox("Inbox");
    if (success != true) {
        outStr += imap.lastErrorText() + "\n";
        tv.setText(outStr);
        setContentView(tv);
        return;
    }

    //  Once the mailbox is selected, the NumMessages property
    //  will contain the number of messages in the mailbox.
    //  You may loop from 1 to NumMessages to
    //  fetch each message by sequence number.

    boolean bUid;
    bUid = false;
    String mimeStr;
    int i;
    int n;
    n = imap.get_NumMessages();
    for (i = 1; i <= n; i++) {

        //  Download the email by sequence number.
        mimeStr = imap.fetchSingleAsMime(i,bUid);

        //  ... your application may process each MIME string...
    }

    //  An alternative is to download each email in the form of an
    //  email object, like this:
    CkEmail email;
    for (i = 1; i <= n; i++) {

        //  Download the email by sequence number.
        email = imap.FetchSingle(i,bUid);

        //  ... your application may process the email object...

    }

    //  Disconnect from the IMAP server.
    imap.Disconnect();
    tv.setText(outStr);
    setContentView(tv);
  }

  static {
      // Important: Make sure the name passed to loadLibrary matches the shared library
      // found in your project's libs/armeabi directory.
      //  for "libchilkat.so", pass "chilkat" to loadLibrary
      //  for "libchilkatemail.so", pass "chilkatemail" to loadLibrary
      //  etc.
      // 
      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."
  }
}