Fetch a Text IMAP Attachment as a String

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Demonstrates the Chilkat Imap.FetchAttachmentString method, which returns one text attachment decoded to a string. The first argument is the Email, the second is the zero-based attachment index, and the third is the charset used to decode the bytes. This example returns the first attachment as a UTF-8 string.

// 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 Imap.FetchAttachmentString method, which downloads one text attachment and
    //  returns it decoded to a string.  The 1st argument is the Email, the 2nd is the zero-based
    //  attachment index, and the 3rd is the charset used to decode the bytes.
    //  
    //  The message is fetched headers-only, then the attachment is downloaded on demand.

    CkImap imap = new CkImap();

    imap.put_Ssl(true);
    imap.put_Port(993);

    success = imap.Connect("imap.example.com");
    if (success == false) {
        Log.i(TAG, imap.lastErrorText());
        return;
        }

    success = imap.Login("user@example.com","myPassword");
    if (success == false) {
        Log.i(TAG, imap.lastErrorText());
        return;
        }

    success = imap.SelectMailbox("Inbox");
    if (success == false) {
        Log.i(TAG, imap.lastErrorText());
        return;
        }

    //  Fetch only the message headers.  Attachment bodies are NOT downloaded, but the ckx-imap-*
    //  metadata describing the attachments is present, so the attachment info methods still work.
    boolean headersOnly = true;
    boolean useUid = false;
    int seqNum = 1;
    CkEmail email = new CkEmail();
    success = imap.FetchEmail(headersOnly,seqNum,useUid,email);
    if (success == false) {
        Log.i(TAG, imap.lastErrorText());
        return;
        }

    int numAttach = imap.GetMailNumAttach(email);
    if (numAttach > 0) {
        //  FetchAttachmentString returns a string, so assign it to a string variable.
        String attachText = imap.fetchAttachmentString(email,0,"utf-8");
        if (imap.get_LastMethodSuccess() == false) {
            Log.i(TAG, imap.lastErrorText());
            return;
            }

        Log.i(TAG, attachText);
        }

    success = imap.Disconnect();
    if (success == false) {
        Log.i(TAG, imap.lastErrorText());
        return;
        }


  }

  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."
  }
}