Android™
Send HTML Email with Image to iPhone

Demonstrates how to compose an HTML email with an embedded image that will display correctly on an iPhone. This example produces an email that looks like this on the iPhone:
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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;

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

    // The mailman object is used for sending and receiving email.
    CkMailMan mailman = new CkMailMan();

    // Use your SMTP server hostname.  This example uses office365, but it could be any SMTP server..
    mailman.put_SmtpHost("outlook.office365.com");
    mailman.put_SmtpPort(587);
    mailman.put_StartTLS(true);

    // Set the SMTP login/password
    mailman.put_SmtpUsername("OFFICE365-SMTP-LOGIN");
    mailman.put_SmtpPassword("OFFICE365-SMTP-PASSWORD");

    // Create a new email object
    CkEmail email = new CkEmail();
    email.put_Subject("Testing for Chilkat SMTP API...");
    email.put_Body("Testing for Chilkat SMTP API...");
    email.put_From("Chilkat Support <my-office365-user@mydomain.com>");
    email.AddTo("Chilkat Support","support@chilkatsoft.com");

    // For whatever reason, the iPhone's email program requires
    // images in HTML to be referenced by Content-ID.  Therefore,
    // we must add the image like this:
    String contentIdStarfish = email.addRelatedFile("qa_data/jpg/starfish.jpg");
    if (email.get_LastMethodSuccess() != true) {
        Log.i(TAG, email.lastErrorText());
        return;
        }

    // The src attribute for the image tag is set to the contentIdStarfish:
    CkStringBuilder sbHtml = new CkStringBuilder();
    sbHtml.Append("<html><body><p>This is an HTML email with an embedded image.</p>");
    sbHtml.Append("<p><img src=\"cid:CONTENT_ID_STARFISH\" /></p></body></html>");
    int numReplacements = sbHtml.Replace("CONTENT_ID_STARFISH",contentIdStarfish);

    email.SetHtmlBody(sbHtml.getAsString());

    success = mailman.SendEmail(email);
    if (success != true) {
        Log.i(TAG, mailman.lastErrorText());
        }
    else {
        Log.i(TAG, "Mail Sent!");
        }


  }

  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."
  }
}